Dynamic Access List
2 likes672 views
The document describes how a dynamic (lock-and-key) access control list works on a router to block client traffic until the client telnets to the router. When a client telnets to the router, a dynamic entry is added to the access list that allows traffic from the client for a set timeout period, after which the traffic will again be blocked unless another telnet session occurs.
1 of 11
![• TELNET TO ROUTER TO INITIATE DYNAMIC ACL ENTRY AND ALLOW TRAFFIC
TO PASS.
• CLIENT#TELNET 10.0.0.1
• TRYING 10.0.0.1 ... OPEN
• USER ACCESS VERIFICATION
• USERNAME: USR
• PASSWORD:
• [CONNECTION TO 10.0.0.1 CLOSED BY FOREIGN HOST]
• CLIENT#](https://image.slidesharecdn.com/dynamiclock-and-keyaccesslistconfiguration-161002033818/85/Dynamic-Access-List-8-320.jpg)
Ad
Recommended
IPv6 Static Routes
IPv6 Static RoutesIrsandi Hasan - Static routes define explicit paths between routers but must be manually reconfigured when network changes occur, unlike dynamic routes. They use less bandwidth than dynamic routes and do not use CPU cycles for route calculations.
- There are four types of static routes: directly connected, next hop, fully specified, and default. Directly connected only requires the output interface, while next hop specifies the next hop router. Fully specified defines both the output interface and next hop router. The default route is used when no other routes match.
- Static routes can be summarized into a single route when destinations are contiguous and use the same exit point. Floating static routes back up dynamic routes but have a higher administrative distance so are lower priority.
Reflexive Access List
Reflexive Access ListNetProtocol Xpert Reflexive access lists allow traffic originating from inside a network while denying traffic from outside. They generate temporary entries to allow return traffic for initiated sessions, unlike standard ACLs which only filter based on ports. Reflexive ACLs should be configured on border routers separating internal and external networks. They can be applied inbound or outbound depending on requirements. When a session starts internally, a temporary entry is added to allow return traffic and is removed after the session ends or a timeout occurs.
Snmp
Snmphetaljadav SNMP (Simple Network Management Protocol) allows network devices to be monitored and managed. It defines an agent-manager architecture where agents run on devices and respond to requests from managers to retrieve or store management information. SNMP uses a management information base (MIB) and structure of management information (SMI) to define managed objects and their properties. Key SNMP components include versions 1 and 2, protocol data units (PDUs) like get, set, and trap requests, and error codes. SNMP traps allow agents to asynchronously notify managers of events.
Ports and protocols
Ports and protocolsKailash Kumar Port numbers are used to identify protocols and applications using the TCP/IP protocol suite. Some common port numbers and their associated protocols include port 80 for HTTP, port 443 for HTTPS, port 25 for SMTP email, and port 53 for DNS. Port numbers help direct network traffic to the appropriate application or service.
The linux networking architecture
The linux networking architecturehugo lu The document discusses Linux networking architecture and covers several key topics in 3 paragraphs or less:
It first describes the basic structure and layers of the Linux networking stack including the network device interface, network layer protocols like IP, transport layer, and sockets. It then discusses how network packets are managed in Linux through the use of socket buffers and associated functions. The document also provides an overview of the data link layer and protocols like Ethernet, PPP, and how they are implemented in Linux.
NMap
NMapPritesh Raka The document provides an overview of Nmap, an open-source network scanning tool used for host detection, port scanning, and OS detection. It details the functionalities of Nmap, including its scanning techniques and applications in security auditing and asset discovery. Additionally, it mentions its cross-platform availability, basic command usage, and references to its recognition in various publications and films.
An introduction to SSH
An introduction to SSHnussbauml SSH (Secure SHell) is a protocol and program used to securely access remote systems. It allows establishing secure communication channels and relies on cryptography. Basic usage provides shell access or executes commands on remote servers, while advanced uses include transferring data, connecting to services, and creating secure tunnels through the public internet. Authentication can be done with passwords or public-key cryptography for increased security.
Type of DDoS attacks with hping3 example
Type of DDoS attacks with hping3 exampleHimani Singh This document summarizes common DDoS attack types and how to execute them using hping3 or other tools. It describes application layer attacks like HTTP floods, protocol attacks like SYN floods, volumetric attacks like ICMP floods, and reflection attacks. It then provides commands to execute various TCP, UDP, ICMP floods and other DDoS attacks using hping3 by spoofing addresses, modifying flags, and targeting ports. Layer 7 attacks exploiting HTTP requests are also summarized.
DMVPN
DMVPNNetProtocol Xpert The document describes the configuration of a Dynamic Multipoint Virtual Private Network (DMVPN) using three phases. Phase 1 establishes IPsec and IKE tunnels between the hub router and spoke routers using EIGRP routing. Phase 2 optimizes the configuration by removing split horizon and enabling next hop self. Phase 3 enables features like NHRP redirect and shortcut to optimize network traffic flow.
Hadoop security
Hadoop securityShivaji Dutta The document discusses security features in Hortonworks Data Platform (HDP) and Pivotal HD. It covers authentication with Kerberos, authorization and auditing using Apache Ranger, perimeter security with Apache Knox, and data encryption at rest and in transit. Various security flows are illustrated including typical access to Hive through Beeline and adding authorization, firewall routing, and encryption. Installation and configuration of Ranger and Knox are also outlined.
Introduction to HTTP protocol
Introduction to HTTP protocolAviran Mordo HTTP is a client-server protocol for transmitting hypermedia documents across the internet. It uses a request-response paradigm where clients make requests which are answered by HTTP servers. Requests use methods like GET and POST, and include headers. Responses contain status lines, headers, and content. HTTP allows caching, cookies, authentication, and redirects. It is the foundation of data communication for the World Wide Web via the hypertext transfer protocol.
Socket Programming
Socket ProgrammingVisualBee.com Socket programming allows applications to communicate over a network. Sockets provide an interface between applications and the network. There are two main types of sockets: SOCK_STREAM for reliable, ordered connections and SOCK_DGRAM for unreliable datagrams. A socket is created with the socket() call and configured with bind() and connect()/listen()+accept() for servers and clients respectively. Data is sent and received with send()/recv() or sendto()/recvfrom().
Going Beyond Microsoft IIS Short File Name Disclosure - NahamCon 2023 Edition
Going Beyond Microsoft IIS Short File Name Disclosure - NahamCon 2023 EditionSoroush Dalili This document provides an introduction to short file names (SFN) in Windows and discusses issues related to inadvertently disclosing SFNs through IIS. It begins with an overview of how SFNs work and how they map to long file names. It then discusses the history of SFN disclosure through IIS and how it can be abused to reveal sensitive file names. The document provides examples of automatically and manually enumerating SFNs to discover long file names. It concludes with tips and tricks for SFN enumeration along with examples of using it to reveal parts of unknown file names.
Access Control List (ACL)
Access Control List (ACL)ISMT College The document discusses Access Control Lists (ACLs), which are lists of permit or deny rules that control what traffic can enter or leave a router's interface. There are standard ACLs, which filter traffic based only on the source IP address, and extended ACLs, which can filter traffic based on additional attributes like destination address, protocol, and port numbers. ACL rules are evaluated sequentially, with an implicit "deny all" rule at the end, so ACLs should be placed strategically to filter traffic close to either its source or destination.
Instana - ClickHouse presentation
Instana - ClickHouse presentationMiel Donkers The document discusses Instana's implementation of a column-oriented DBMS, ClickHouse, for performing sub-second data analysis. It details a system architecture involving agents, sensors, Kafka, and interactions between ClickHouse and Cassandra. The focus is on efficient data handling and processing for real-time analysis.
Zabbix Monitoring Platform
Zabbix Monitoring Platform Seyedmajid Etehadi The document provides an overview of the Zabbix monitoring platform. It discusses why monitoring is needed, compares Zabbix to other monitoring tools like Nagios, Prometheus, and PRTG, and describes Zabbix's features including data gathering, alerting, graphing, templates, and architecture. The document also covers Zabbix agents, proxies, notifications, and common use cases for server and service monitoring.
Firewall Endian
Firewall EndianFouad Root Le document traite de la sécurité informatique, mettant l'accent sur l'importance des pare-feux pour protéger les systèmes informatiques contre les menaces externes. Il présente le pare-feu Endian UTM, ses spécifications matérielles et ses fonctionnalités, ainsi que les différentes configurations possibles. La conclusion souligne que, malgré l'utilisation d'un pare-feu, des vulnérabilités peuvent persister dans un réseau.
Acl
AclRaghu Kiran - Access control lists (ACLs) allow or deny network traffic passing through a router based on source and destination IP addresses, protocols, and port numbers.
- There are two main types of ACLs: standard ACLs which filter based on source IP addresses, and extended ACLs which filter on source/destination IP addresses, protocols, and port numbers.
- ACLs can be numbered or named, with named ACLs allowing selective editing of statements not possible with numbered ACLs.
Rmi presentation
Rmi presentationAzad public school RMI allows for remote method invocation, making remote objects appear local to clients. It handles threading, sockets, object marshalling between client and server JVMs. The client looks up remote objects in the RMI registry and calls methods which are executed on server object skeletons. Return values pass through stubs back to the client. Advantages include automatic threading and marshalling, dynamic class loading. Disadvantages are that RMI only works with Java and security must be closely monitored.
MITRE ATT&CKcon 2.0: Zeek-based ATT&CK Metrics and Gap Analysis; Allan Thomso...
MITRE ATT&CKcon 2.0: Zeek-based ATT&CK Metrics and Gap Analysis; Allan Thomso...MITRE - ATT&CKcon The document discusses the Zeek network analysis framework, focusing on its role in network security monitoring and correlation of intelligence with ATT&CK metrics. It outlines the architecture, ecosystem, and processes involved in mapping threat intelligence to ATT&CK, including data preparation, correlation, and alerting techniques. The document emphasizes the importance of effective data modeling and preparation for improving analysis capabilities in security operations.
Wireless LAN Design Fundamentals in the Campus
Wireless LAN Design Fundamentals in the CampusAruba, a Hewlett Packard Enterprise company The document outlines the fundamentals of WLAN design for campuses, highlighting factors to consider when choosing network solutions, including user expectations, coverage areas, and infrastructure specifications. It discusses various access point (AP) decision points, controller roles, deployment models, and high availability configurations for effective network management. Additionally, it addresses scenarios for large and K-12 campuses, detailing their unique deployment architectures and the benefits of centralized versus distributed controller strategies.
Palo alto networks NAT flow logic
Palo alto networks NAT flow logicAlberto Rivai The document provides examples and explanations of network address translation (NAT) configurations on Palo Alto Networks next-generation firewalls. It shows how NAT policies work with security policies to translate source and destination IP addresses and apply firewall rules. The first example demonstrates static destination NAT to map any internal address to a single public address. The second example uses source NAT to map a DMZ subnet to an internal address. Flow charts illustrate how the firewall evaluates zones, NAT rules, security rules and applies address translations at each step.
Introduction to Apache ZooKeeper
Introduction to Apache ZooKeeperSaurav Haloi The document discusses Apache ZooKeeper, an open-source coordination service for distributed applications, facilitating process coordination through a hierarchical namespace. It highlights its features such as naming, configuration management, and synchronization services, along with the architecture and operational aspects including znode management, watches, and consensus mechanisms. Additionally, it outlines practical applications and uses of ZooKeeper in various companies and projects.
Nmap scripting engine
Nmap scripting enginen|u - The Open Security Community This document provides an overview and agenda for a training on the Nmap Scripting Engine (NSE). It begins with a 10 minute introduction to Nmap, covering what Nmap is used for and some basic scan options. Next, it spends 20 minutes reviewing the existing NSE script categories and how to use available scripts, demonstrating two sample scripts. Finally, it dedicates 20 minutes to explaining how to write your own NSE script, including the basic structure and providing an example of writing a script to find the website title.
Socket programming
Socket programmingharsh_bca06 Sockets allow for two-way communication between hosts in a network. There are two types of sockets: server sockets and client sockets. Server sockets wait for connection requests from clients, while client sockets are used to send and receive data from servers. Sockets provide input and output streams for transmission of data between endpoints.
ICE basic
ICE basicVu Nguyen The document discusses Network Address Translation (NAT) and how it causes issues for SIP calls by hiding private IP addresses. It introduces Interactive Connectivity Establishment (ICE) as the IETF's solution to this problem. ICE uses STUN and TURN to dynamically discover potential transport addresses between endpoints and then verifies connectivity through these addresses to find the optimal path for media.
Module 1: ConfD Technical Introduction
Module 1: ConfD Technical IntroductionTail-f Systems ConfD is a data-model driven management framework that provides standards-based management interfaces for network elements, including both physical and virtual devices. It supports various protocols such as NetConf, SNMP, REST, and CLI, utilizing a core engine based on YANG data models for enhanced manageability and interoperability. The framework includes features like high availability, integrated databases, and robust API libraries to facilitate effective network management and configuration.
Squid
SquidChirag Gupta The document discusses proxies and caching. Proxies act as intermediaries between local networks and external networks like the Internet. They can improve performance by caching frequently requested web pages. Squid is an open source proxy caching server that operates by checking its cache for requested objects, retrieving objects from origin servers if needed, and storing cacheable objects in its local cache.
Standard Access List
Standard Access ListNetProtocol Xpert The document discusses configuring a standard access control list (ACL) on router R1 to filter traffic from router R2's loopback interfaces. The ACL denies traffic from R2's 192.168.0.0 network and permits traffic from 192.168.1.0. Applying the ACL to R1's interface confirms that pings are dropped from 192.168.0.1 but allowed from 192.168.1.1.
Curriculum Vitae of Michelle Tobias
Curriculum Vitae of Michelle TobiasMichelle Tobias Michelle Tobias is seeking a position in human resources and has over 5 years of experience in administration, customer service, and au pair roles. She has a BCom Honours degree from the University of Pretoria in human resources with averages over 70%. Her skills include communication, organization, computer literacy, teamwork, and bilingualism. References are available from her previous employers.
More Related Content
What's hot (20)
DMVPN
DMVPNNetProtocol Xpert The document describes the configuration of a Dynamic Multipoint Virtual Private Network (DMVPN) using three phases. Phase 1 establishes IPsec and IKE tunnels between the hub router and spoke routers using EIGRP routing. Phase 2 optimizes the configuration by removing split horizon and enabling next hop self. Phase 3 enables features like NHRP redirect and shortcut to optimize network traffic flow.
Hadoop security
Hadoop securityShivaji Dutta The document discusses security features in Hortonworks Data Platform (HDP) and Pivotal HD. It covers authentication with Kerberos, authorization and auditing using Apache Ranger, perimeter security with Apache Knox, and data encryption at rest and in transit. Various security flows are illustrated including typical access to Hive through Beeline and adding authorization, firewall routing, and encryption. Installation and configuration of Ranger and Knox are also outlined.
Introduction to HTTP protocol
Introduction to HTTP protocolAviran Mordo HTTP is a client-server protocol for transmitting hypermedia documents across the internet. It uses a request-response paradigm where clients make requests which are answered by HTTP servers. Requests use methods like GET and POST, and include headers. Responses contain status lines, headers, and content. HTTP allows caching, cookies, authentication, and redirects. It is the foundation of data communication for the World Wide Web via the hypertext transfer protocol.
Socket Programming
Socket ProgrammingVisualBee.com Socket programming allows applications to communicate over a network. Sockets provide an interface between applications and the network. There are two main types of sockets: SOCK_STREAM for reliable, ordered connections and SOCK_DGRAM for unreliable datagrams. A socket is created with the socket() call and configured with bind() and connect()/listen()+accept() for servers and clients respectively. Data is sent and received with send()/recv() or sendto()/recvfrom().
Going Beyond Microsoft IIS Short File Name Disclosure - NahamCon 2023 Edition
Going Beyond Microsoft IIS Short File Name Disclosure - NahamCon 2023 EditionSoroush Dalili This document provides an introduction to short file names (SFN) in Windows and discusses issues related to inadvertently disclosing SFNs through IIS. It begins with an overview of how SFNs work and how they map to long file names. It then discusses the history of SFN disclosure through IIS and how it can be abused to reveal sensitive file names. The document provides examples of automatically and manually enumerating SFNs to discover long file names. It concludes with tips and tricks for SFN enumeration along with examples of using it to reveal parts of unknown file names.
Access Control List (ACL)
Access Control List (ACL)ISMT College The document discusses Access Control Lists (ACLs), which are lists of permit or deny rules that control what traffic can enter or leave a router's interface. There are standard ACLs, which filter traffic based only on the source IP address, and extended ACLs, which can filter traffic based on additional attributes like destination address, protocol, and port numbers. ACL rules are evaluated sequentially, with an implicit "deny all" rule at the end, so ACLs should be placed strategically to filter traffic close to either its source or destination.
Instana - ClickHouse presentation
Instana - ClickHouse presentationMiel Donkers The document discusses Instana's implementation of a column-oriented DBMS, ClickHouse, for performing sub-second data analysis. It details a system architecture involving agents, sensors, Kafka, and interactions between ClickHouse and Cassandra. The focus is on efficient data handling and processing for real-time analysis.
Zabbix Monitoring Platform
Zabbix Monitoring Platform Seyedmajid Etehadi The document provides an overview of the Zabbix monitoring platform. It discusses why monitoring is needed, compares Zabbix to other monitoring tools like Nagios, Prometheus, and PRTG, and describes Zabbix's features including data gathering, alerting, graphing, templates, and architecture. The document also covers Zabbix agents, proxies, notifications, and common use cases for server and service monitoring.
Firewall Endian
Firewall EndianFouad Root Le document traite de la sécurité informatique, mettant l'accent sur l'importance des pare-feux pour protéger les systèmes informatiques contre les menaces externes. Il présente le pare-feu Endian UTM, ses spécifications matérielles et ses fonctionnalités, ainsi que les différentes configurations possibles. La conclusion souligne que, malgré l'utilisation d'un pare-feu, des vulnérabilités peuvent persister dans un réseau.
Acl
AclRaghu Kiran - Access control lists (ACLs) allow or deny network traffic passing through a router based on source and destination IP addresses, protocols, and port numbers.
- There are two main types of ACLs: standard ACLs which filter based on source IP addresses, and extended ACLs which filter on source/destination IP addresses, protocols, and port numbers.
- ACLs can be numbered or named, with named ACLs allowing selective editing of statements not possible with numbered ACLs.
Rmi presentation
Rmi presentationAzad public school RMI allows for remote method invocation, making remote objects appear local to clients. It handles threading, sockets, object marshalling between client and server JVMs. The client looks up remote objects in the RMI registry and calls methods which are executed on server object skeletons. Return values pass through stubs back to the client. Advantages include automatic threading and marshalling, dynamic class loading. Disadvantages are that RMI only works with Java and security must be closely monitored.
MITRE ATT&CKcon 2.0: Zeek-based ATT&CK Metrics and Gap Analysis; Allan Thomso...
MITRE ATT&CKcon 2.0: Zeek-based ATT&CK Metrics and Gap Analysis; Allan Thomso...MITRE - ATT&CKcon The document discusses the Zeek network analysis framework, focusing on its role in network security monitoring and correlation of intelligence with ATT&CK metrics. It outlines the architecture, ecosystem, and processes involved in mapping threat intelligence to ATT&CK, including data preparation, correlation, and alerting techniques. The document emphasizes the importance of effective data modeling and preparation for improving analysis capabilities in security operations.
Wireless LAN Design Fundamentals in the Campus
Wireless LAN Design Fundamentals in the CampusAruba, a Hewlett Packard Enterprise company The document outlines the fundamentals of WLAN design for campuses, highlighting factors to consider when choosing network solutions, including user expectations, coverage areas, and infrastructure specifications. It discusses various access point (AP) decision points, controller roles, deployment models, and high availability configurations for effective network management. Additionally, it addresses scenarios for large and K-12 campuses, detailing their unique deployment architectures and the benefits of centralized versus distributed controller strategies.
Palo alto networks NAT flow logic
Palo alto networks NAT flow logicAlberto Rivai The document provides examples and explanations of network address translation (NAT) configurations on Palo Alto Networks next-generation firewalls. It shows how NAT policies work with security policies to translate source and destination IP addresses and apply firewall rules. The first example demonstrates static destination NAT to map any internal address to a single public address. The second example uses source NAT to map a DMZ subnet to an internal address. Flow charts illustrate how the firewall evaluates zones, NAT rules, security rules and applies address translations at each step.
Introduction to Apache ZooKeeper
Introduction to Apache ZooKeeperSaurav Haloi The document discusses Apache ZooKeeper, an open-source coordination service for distributed applications, facilitating process coordination through a hierarchical namespace. It highlights its features such as naming, configuration management, and synchronization services, along with the architecture and operational aspects including znode management, watches, and consensus mechanisms. Additionally, it outlines practical applications and uses of ZooKeeper in various companies and projects.
Nmap scripting engine
Nmap scripting enginen|u - The Open Security Community This document provides an overview and agenda for a training on the Nmap Scripting Engine (NSE). It begins with a 10 minute introduction to Nmap, covering what Nmap is used for and some basic scan options. Next, it spends 20 minutes reviewing the existing NSE script categories and how to use available scripts, demonstrating two sample scripts. Finally, it dedicates 20 minutes to explaining how to write your own NSE script, including the basic structure and providing an example of writing a script to find the website title.
Socket programming
Socket programmingharsh_bca06 Sockets allow for two-way communication between hosts in a network. There are two types of sockets: server sockets and client sockets. Server sockets wait for connection requests from clients, while client sockets are used to send and receive data from servers. Sockets provide input and output streams for transmission of data between endpoints.
ICE basic
ICE basicVu Nguyen The document discusses Network Address Translation (NAT) and how it causes issues for SIP calls by hiding private IP addresses. It introduces Interactive Connectivity Establishment (ICE) as the IETF's solution to this problem. ICE uses STUN and TURN to dynamically discover potential transport addresses between endpoints and then verifies connectivity through these addresses to find the optimal path for media.
Module 1: ConfD Technical Introduction
Module 1: ConfD Technical IntroductionTail-f Systems ConfD is a data-model driven management framework that provides standards-based management interfaces for network elements, including both physical and virtual devices. It supports various protocols such as NetConf, SNMP, REST, and CLI, utilizing a core engine based on YANG data models for enhanced manageability and interoperability. The framework includes features like high availability, integrated databases, and robust API libraries to facilitate effective network management and configuration.
Squid
SquidChirag Gupta The document discusses proxies and caching. Proxies act as intermediaries between local networks and external networks like the Internet. They can improve performance by caching frequently requested web pages. Squid is an open source proxy caching server that operates by checking its cache for requested objects, retrieving objects from origin servers if needed, and storing cacheable objects in its local cache.
Viewers also liked (16)
Standard Access List
Standard Access ListNetProtocol Xpert The document discusses configuring a standard access control list (ACL) on router R1 to filter traffic from router R2's loopback interfaces. The ACL denies traffic from R2's 192.168.0.0 network and permits traffic from 192.168.1.0. Applying the ACL to R1's interface confirms that pings are dropped from 192.168.0.1 but allowed from 192.168.1.1.
Curriculum Vitae of Michelle Tobias
Curriculum Vitae of Michelle TobiasMichelle Tobias Michelle Tobias is seeking a position in human resources and has over 5 years of experience in administration, customer service, and au pair roles. She has a BCom Honours degree from the University of Pretoria in human resources with averages over 70%. Her skills include communication, organization, computer literacy, teamwork, and bilingualism. References are available from her previous employers.
현업 엔지니어의 시각에서 본 알고리즘 공부의 장점과 단점
현업 엔지니어의 시각에서 본 알고리즘 공부의 장점과 단점Wonha Ryu http://first.startlink.live/ 에서 발표한 내용입니다.
원본은 http://beingryu.github.io/first-startlink-live/ 에서 보실 수 있습니다.
Decalogo
Decalogo TICMAICOL El documento presenta un decálogo de 10 cualidades para ser una buena persona: ser puntual, responsable, buen estudiante, buena persona, respetuoso, honorable, trabajar en equipo, tolerante, honesto y sincero. Estas cualidades ayudarán a la persona a ser mejor, tener buenas referencias de los profesores, aprobar en la escuela, llevarse bien con los demás, y tener éxito en la vida.
Research method ch01 introduction
Research method ch01 introductionnaranbatn This chapter provides an introduction to research methods in health sciences. It defines key concepts like scientific method, research, and health research. It outlines the objectives of the chapter as describing the scientific method, discussing perspectives on it, and how it applies to health research. Various types of research are described including descriptive, analytical, predictive, and problem-solving/action research. The chapter discusses the research process as cyclical and criteria for good research. It also covers topics like research planning versus methodology, the development of theories and models, and variables.
EIGRP Configuration
EIGRP ConfigurationNetProtocol Xpert The document discusses configuring EIGRP on routers. EIGRP configuration requires enabling EIGRP using the "router eigrp ASN_NUMBER" command and specifying networks to advertise using the "network SUBNET" command. The ASN number must match across routers to establish neighbor relationships. The network command can use a wildcard mask to enable EIGRP on specific interfaces rather than all interfaces in a classful network. Verification commands like "show ip eigrp neighbors" and "show ip route" are provided to check neighbor relationships and exchanged routes.
El libro-móvil-de-las-tablas-de-multiplicar
El libro-móvil-de-las-tablas-de-multiplicarJenny RM Este documento apresenta as tabelas de multiplicação de 0 a 10, com cada número multiplicado por si mesmo resultando no produto correspondente, como 0 x 0 = 0, 1 x 1 = 1 e assim por diante até 10 x 10 = 100.
OSPF Overview
OSPF OverviewNetProtocol Xpert OSPF is a link-state routing protocol that uses LSAs to exchange routing and topology information between routers. Routers must establish neighbor relationships by exchanging Hello packets before sharing LSAs. Routers run the SPF algorithm to calculate the best paths based on the collected link-state database and populate their routing tables. OSPF supports features like equal cost load balancing, VLSM, and manual summarization. It divides large networks into areas to reduce routing overhead.
Radware Cloud Security Services
Radware Cloud Security ServicesRadware Radware provides cloud-based web application firewall (WAF) and distributed denial of service (DDoS) protection services to help organizations address evolving security threats. The services use Radware's security technologies and are fully managed by Radware security experts. The WAF service provides continuously adaptive protection against known and unknown attacks. The DDoS service offers over 2Tbps of mitigation capacity and has protected organizations from large multi-vector DDoS campaigns. Both services are designed to provide strong security with minimal management requirements.
Ceh v8 labs module 05 system hacking
Ceh v8 labs module 05 system hackingAsep Sopyan LCP is a password cracking tool that can extract administrator passwords remotely. In this lab, LCP was used to crack the administrator password of a Windows Server 2012 system with IP address WIN-039MR5HL9E4. It retrieved the usernames and passwords of various accounts, including the administrator account. NTFS streams allow files to be hidden by associating them with the main file or directory as an alternate data stream. This lab demonstrates how to hide the calc.exe file in the C:\magic folder using NTFS streams so it is not visible normally.
Js dom & JS bom
Js dom & JS bomanees abu-hmaid بسم الله الرحمن الرحيم
الحمد لله رب العالمين، الحمد لله العليم القادر ، الحمد لله الحي القيوم الذي لا تأخذه سنة ولا نوم ، الحمد لله الواحد الأحد الفرد الصمد الذي لم يلد ولم يولد ولم يكن له كفوا أحد.
اللهم ربنا لك الحمد ، ملء السماوات ، وملء الأرض ، وملء ما شئت من شيء بعد، الحمد لله رب العالمين ..
أقدم لكم أحبتي، دورة جديدة في عالم الويب، وهي JS DOM & JS BOM والتي سنتطرق بها الى مجموعة من العناوين والمواضيع المهمة وهي:
المقدمة
متطلبات الدورة
JAVASCRIPT DOM
تعريف ال DOM
تعريف ال HTML DOM
HTML DOM METHOD & Property
JS DOM (methods, property can be used)
Finding HTML Elements
Changing HTML & CSS
HTML DOM Events
Event Listener
JAVASCRIPT BOM
تعريف ال BOM
JS Popup
JS Timing
JS Screen
JS Location
JS History
JS Cookies
الخاتمة
نسأل الله تعالى أن يوفقنا وإياكم لكل خير، وأن ينفع بنا وبكم.
اللهم اغفر لي ولوالدي وللمسلمين أحيائهم وأمواتهم إنك سميع عليم رحيم مجيب الدعاء. اللهم آمين.
Ad
Similar to Dynamic Access List (20)
Time Based ACL
Time Based ACLNetProtocol Xpert This document discusses configuring a time-based access control list (ACL) to deny ICMP packets between a host and server during working hours from 9am to 6pm. The steps shown are: 1) Define a time range for the ACL action, 2) Create an ACL to deny ICMP and apply the time range, 3) Apply the ACL to an interface inbound to filter packets. Testing shows ICMP is permitted before 9am but denied during the defined time range.
Access List in Networks
Access List in Networkswolverinetyagi Access Control Lists (ACLs) are used in routers to determine which network traffic to permit or deny based on various packet attributes such as source and destination addresses, protocols, and port numbers. The document outlines the types of ACLs, their configuration, and examples of commands for permitting specific packet types, which can help manage network access and improve efficiency. It also emphasizes the role of standard and extended ACLs in routing decisions and maintaining network security.
CIsco ACL- Network and host security
CIsco ACL- Network and host securityShiv Koppad This document outlines the configuration of access control lists (ACLs) on a border router and internal router to implement a security policy. It lists the interfaces on each router and their connections. It then details the ACL rules applied to each interface to allow necessary traffic and deny unwanted traffic, including blocking certain ICMP message types. Reflexive ACLs are used to allow return traffic. RIP is configured for routing between the routers.
Chapter10ccna
Chapter10ccnaLakshan Perera This document summarizes a chapter on network security from a CCNA certification study guide. It discusses types of security attacks and how to mitigate them using appliances like IDS and firewalls. It also covers using access control lists (ACLs) to filter network traffic by source/destination IP addresses, protocols, and port numbers. Standard ACLs filter by source IP only, while extended ACLs can filter additional fields. Named ACLs provide descriptive names. The document provides examples of creating and applying standard, extended, and named ACLs to network interfaces to control network access.
Cisco CCNA-Standard Access List
Cisco CCNA-Standard Access ListHamed Moghaddam The document explains Cisco CCNA standard access lists, detailing the differences between standard and extended ACLs, with a focus on configuring ACLs using command line inputs. It describes the process of creating a standard ACL to restrict access from a specific LAN to another, including specific commands and configuration steps. Additionally, it demonstrates the application of the ACL and verifies its functionality through ping tests.
Modul 5 access control list
Modul 5 access control listdiah risqiwati An access control list (ACL) is a sequential list of permit or deny statements that apply to network traffic and are used to control what traffic is allowed or denied on a network interface. ACLs can filter traffic based on source/destination IP addresses, protocols, and port numbers. Standard ACLs filter only on source IP addresses while extended ACLs can filter on additional parameters. ACLs are applied to interfaces using the ip access-group command to implement the access control on inbound or outbound traffic on that interface.
CCNA Security - Chapter 4
CCNA Security - Chapter 4Irsandi Hasan Here are the basic steps to configure a router to use reflexive ACLs:
1. Create an internal ACL that looks for new outbound sessions and creates temporary reflexive ACEs
2. Create an external ACL that uses the reflexive ACLs to examine return traffic
3. Activate the named ACLs on the appropriate interfaces with the reflexive keyword
This allows the router to dynamically create temporary entries in the external ACL to allow established return traffic and provide true session filtering while preventing spoofing.
CCNA Security configuration
CCNA Security configurationRafat Khandaker 1. The document discusses configuring security on a network using Cisco devices, including port security, MAC address configuration, and access control lists (ACLs).
2. ACLs were configured on the router to allow only the laptop IP address to access the web server port, blocking other devices.
3. An issue was troubleshooted where the ACL configuration was implicitly denying all connections; additional rules were added to permit necessary protocols and connections were then successful.
CCNA Access Control Lists
CCNA Access Control ListsNetworkel The document discusses access control lists (ACLs) which are used to filter network traffic by controlling packet flow into and out of network interfaces. It covers the basics of standard IPv4 ACLs which filter based on source address, extended IPv4 ACLs which can also filter based on protocols, ports, destination addresses, and IPv6 ACLs. Examples are provided of configuring ACL rules to permit or deny traffic between devices on a network.
5 ip security ipsec gre
5 ip security ipsec greSagarR24 The document provides information about AAA (authentication, authorization, and accounting), access control lists (ACLs), and configuration examples for implementing TACACS+ and RADIUS on Cisco switches for authentication, authorization, and accounting. It discusses topics like standard vs extended ACLs, ACL rules, and provides examples of configuring numbered and named standard and extended ACLs to filter traffic between routers in an OSPF network.
4.1.1.10 Packet Tracer - Configuring Extended ACLs Scenario 1.pdf
4.1.1.10 Packet Tracer - Configuring Extended ACLs Scenario 1.pdfssuserf7cd2b This document describes configuring and testing extended access control lists (ACLs) on a router to filter traffic between two PCs and a server. It outlines configuring a numbered ACL to permit FTP and ICMP from PC1 to the server, and a named ACL to permit HTTP and ICMP from PC2 to the server. The ACLs are applied to router interfaces and testing verifies only allowed traffic succeeds while denied traffic fails.
4.1.1.10 packet tracer configuring extended ac ls scenario 1
4.1.1.10 packet tracer configuring extended ac ls scenario 1mps125 This document describes configuring and testing extended access control lists (ACLs) on a router to filter traffic between two PCs and a server. It outlines configuring a numbered ACL to permit FTP and ICMP from PC1 to the server, and a named ACL to permit HTTP and ICMP from PC2 to the server. The ACLs are applied to router interfaces and testing verifies only allowed traffic succeeds while denied traffic fails.
4.1.1.10 Packet Tracer - Configuring Extended ACLs Scenario 1 Instructor (1).pdf
4.1.1.10 Packet Tracer - Configuring Extended ACLs Scenario 1 Instructor (1).pdfZahraElhaddi The document provides a step-by-step guide for configuring extended ACLs in a network scenario involving two PCs needing access to a server. It includes instructions for setting up both numbered and named ACLs to control FTP and HTTP traffic, as well as ICMP, ensuring appropriate filtering for each device. The document also outlines the verification steps to ensure correct implementation of the access lists.
5 ip security copp-mpp
5 ip security copp-mppSagarR24 This document discusses authentication, authorization and accounting (AAA) protocols, access control lists (ACLs), and network security topics covered in a CCNP Enterprise 2020 lab workbook. It provides information on AAA protocols including RADIUS and TACACS+, describes the functions of authentication, authorization and accounting. It also covers the basics of standard and extended ACLs including the different types, how they are defined and identified, and rules for applying ACLs. Configuration examples are given for implementing AAA and ACLs on Cisco switches and routers.
1. Task In this assignment you are asked to provide named.pdf
1. Task In this assignment you are asked to provide named.pdfalokopticalswatchco0 This assignment requires students to create named access control lists (ACLs) for Cisco firewalls based on a specified corporate network structure. The document outlines the components of the network, required security policies, detailed configurations for routers, and tasks to document the setup and test various scenarios. The final submission should include the student's name, a list of configuration commands, and answers to firewall evaluation questions, with a deadline set for March 27th.
Student Name _________________________________ Date _____________SE.docx
Student Name _________________________________ Date _____________SE.docxemelyvalg9 The document outlines the configuration of an ISP router for student lab exercises in a networking course, focusing on access control lists (ACLs) for a database server's security. It details the setup process including initial router configurations, required ACL commands, and specific tasks for students to complete. Additionally, it includes questions and explanations regarding the use of ACLs, port types, and best practices for router security policies.
26.2.1 Packet Tracer - Configure Extended IPv4 ACLs - Scenario 1 - ITExamAnsw...
26.2.1 Packet Tracer - Configure Extended IPv4 ACLs - Scenario 1 - ITExamAnsw...rediani The document describes configuring extended access control lists (ACLs) on a router to filter traffic from two PCs to a server based on specific protocols.
The ACLs are configured to:
1) Permit FTP and ICMP traffic from PC1 to the server
2) Permit HTTP and ICMP traffic from PC2 to the server
The ACLs are applied to the appropriate router interfaces and testing is done to verify the ACLs are working as intended. Ping tests and application tests like FTP and web browsing are used to validate the ACL configurations.
Access control list [2]
Access control list [2]Summit Bisht This document provides instructions for configuring standard access control lists (ACLs) on a router to block or permit traffic based on source IP addresses. It includes steps to create an ACL denying a specific host while permitting any other traffic, apply the ACL to an interface, and verify it is working. It also provides commands to remove a specific ACL entry or the entire ACL configuration.
1 SEC450 ACL Tutorial This document highlights.docx
1 SEC450 ACL Tutorial This document highlights.docxdorishigh This document is a tutorial on configuring access control lists (ACLs) in CLI, particularly aimed at students learning in SEC450 labs. It outlines the purpose and implementation of ACLs in firewalls, how to deny or permit specific types of traffic using various command examples in Cisco IOS, and details on applying these ACLs to interfaces on routers. The document also includes tasks requiring the configuration and modification of ACLs to meet specific network security requirements.
Firewalls
Firewallshemantag This document discusses firewall technologies and how they work to secure networks. It begins by defining what a firewall is and its purpose of controlling access between trusted and untrusted networks. It then explains different types of firewalls including packet filtering, stateful inspection, proxies, and how each works. The document also covers topics like filtering, spoofing, fragmentation attacks, and how firewalls can help prevent these threats while noting limitations.
Ad
More from NetProtocol Xpert (20)
Basic Cisco ASA 5506-x Configuration (Firepower)
Basic Cisco ASA 5506-x Configuration (Firepower)NetProtocol Xpert This document provides instructions for configuring basic network security on a Cisco ASA 5506-x firewall. It outlines requirements for separating networks into an Internet, user, and DMZ segment. It then provides steps to update the ASA software, configure interfaces and security levels, enable internet access via NAT and routing, allow web access to servers on the DMZ, optionally configure DHCP, and optionally redirect traffic to the FirePOWER module. It also includes steps for hardening the device by shutting down unused interfaces, enabling SSH access, and configuring time and logging.
MPLS Layer 3 VPN
MPLS Layer 3 VPN NetProtocol Xpert This document explains MPLS Layer 3 VPNs. It discusses how Layer 3 VPNs allow routing information to be shared between customer sites using protocols like OSPF and BGP across the service provider's MPLS network. It describes how Virtual Routing and Forwarding instances (VRFs), MP-BGP, Route Distinguishers (RDs), and Route Targets (RTs) work together to separate routing information for different customers and establish VPN connectivity between their sites while avoiding overlapping address spaces.
Common Layer 2 Threats, Attacks & Mitigation
Common Layer 2 Threats, Attacks & MitigationNetProtocol Xpert This document discusses common layer 2 security threats and attacks, including MAC layer attacks, VLAN attacks, spoofing attacks, and attacks against switch devices. It describes several specific attacks such as MAC flooding, VLAN hopping, DHCP starvation, and CDP manipulation. The document also provides mitigation strategies for each threat, such as using port security, private VLANs, DHCP snooping, and disabling unused protocols.
Storm-Control
Storm-ControlNetProtocol Xpert Storm control blocks interfaces from receiving excessive broadcast, multicast, or unicast traffic over a threshold within a time period. When traffic exceeds the rising threshold, the interface is blocked until traffic drops below the falling threshold. Storm control can shut down interfaces or send SNMP traps. It was tested between two switches, with one interface shutting down when unicast traffic exceeded 100 packets per second due to storm control being triggered.
Dynamic ARP Inspection (DAI)
Dynamic ARP Inspection (DAI)NetProtocol Xpert Dynamic ARP inspection (DAI) is a security feature that prevents man-in-the-middle attacks by validating ARP packets. It relies on DHCP snooping to build a database of valid IP-MAC address bindings. When enabled, DAI will drop ARP packets that do not match entries in the DHCP snooping database, preventing ARP poisoning attacks. The document then demonstrates configuring and testing DAI on a switch to block an ARP poisoning attempt by a rogue workstation.
IP Source Guard
IP Source Guard NetProtocol Xpert IP Source Guard (IPSG) helps prevent IP spoofing attacks by dropping any traffic that does not match the bindings in the DHCP Snooping database or configured static IP bindings. IPSG creates ACLs dynamically on each port to block unauthorized traffic. It must be enabled on all access ports along with DHCP Snooping to be effective. Static IP/MAC bindings can also be configured for devices not using DHCP.
DHCP Snooping
DHCP SnoopingNetProtocol Xpert DHCP Snooping allows switches to prevent man-in-the-middle attacks by DHCP spoofing. It trusts only the port connected to the DHCP server, monitors traffic for IP and MAC bindings, and uses this information for other security features. When enabled, DHCP Snooping will only forward DHCP requests to trusted ports and maintain a table of client bindings.
Password Recovery
Password RecoveryNetProtocol Xpert This document provides steps to recover passwords on a Cisco router by booting from flash memory rather than the startup configuration. The steps include shutting down the router, removing the compact flash card, rebooting to enter ROMMON mode, changing the configuration register to boot from flash, and resetting the router. Once logged in, the user can issue commands like "show running-config" to view current settings, and "configure terminal" to change the enable secret password.
Application & Data Center
Application & Data CenterNetProtocol Xpert The document discusses changes in data center and network architecture over time from mainframes to personal computers to modern cloud platforms. Traditional spanning tree protocol (STP) architectures are no longer suitable due to shifting traffic patterns and new applications. New options like layer 2 fabrics, encapsulated overlays, and software-defined networking can provide more flexibility, scalability, and agility needed to adapt to changing demands.
Cisco ISR 4351 Router
Cisco ISR 4351 RouterNetProtocol Xpert The Cisco ISR4351 router is designed to fill the gap between the Cisco 3900 series routers and Cisco ASR routers. It offers up to 400 Mbps of bandwidth in a 2RU form factor. The Cisco ISR4351 is suggested for migrations from Cisco 2951 routers. It has an 8-core CPU with dedicated processing cores and support for up to 16GB of memory. The Cisco ISR4351 is recommended for networks requiring bandwidth between 200-400 Mbps.
Cisco ASR 1001-X Router
Cisco ASR 1001-X RouterNetProtocol Xpert The document discusses using the Cisco ASR 1001-X router to handle large traffic loads entering a centralized datacenter from global sites. Specifically:
- The ASR 1001-X is capable of aggregating 1Gbps of traffic entering the datacenter and connecting to an ISP edge router.
- It has redundant Cisco IOS-XE software, encryption support up to 78Gbps, 8GB of DRAM, and a quad-core processor.
- While the ASR 1001-X can handle many scenarios, larger routers like the ASR 1001-HX or ASR 1002-HX are needed for more slots or higher traffic loads over 20Gbps.
Securing management, control & data plane
Securing management, control & data planeNetProtocol Xpert The document discusses securing the management, control, and data planes of a network. It describes:
1. Securing the management plane through strong passwords, encrypted protocols like SSH, user authentication using AAA, role-based access control, logging, and network time protocol.
2. Securing the control plane using control plane policing and protection to minimize CPU load and protect against denial of service attacks.
3. Securing the data plane using access control lists, antispoofing features, port security, DHCP snooping, dynamic ARP inspection, and IP source guard to filter traffic and prevent spoofing and man-in-the-middle attacks.
Point to-point protocol (ppp), PAP & CHAP
Point to-point protocol (ppp), PAP & CHAPNetProtocol Xpert - The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol packets over point-to-point links. PPP establishes communication in three phases: Link Control Protocol (LCP) phase for link configuration, optional authentication phase using Password Authentication Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP), and Network Control Protocol (NCP) phase for layer 3 configuration.
- PAP transmits passwords in clear text, while CHAP uses an encrypted hash to authenticate peers without transmitting passwords. The document provides configuration examples for PPP, PAP, and CHAP authentication between two routers to establish a point-to-point link.
Avoid DNS lookup when mistyping a command
Avoid DNS lookup when mistyping a commandNetProtocol Xpert Avoid DNS lookup when mistyping a command
TCLSH and Macro Ping Test on Cisco Routers and Switches
TCLSH and Macro Ping Test on Cisco Routers and SwitchesNetProtocol Xpert TCLSH and macros can be used on Cisco routers and switches to automate pinging multiple IP addresses to check connectivity. TCLSH scripts use a foreach loop to ping each IP address returned from show commands like show ip alias or show ip interface brief. Macros can also be used on switches that do not support TCLSH by creating a macro that executes multiple ping commands in the global configuration. Both methods ping multiple addresses without needing to manually ping each one.
Private VLANs
Private VLANsNetProtocol Xpert Private VLANs allow splitting a regular VLAN into multiple "subdomains" to provide isolation between hosts at layer 2. The domains are isolated broadcast domains that require layer 3 forwarding to communicate. Primary, isolated, and community ports are defined for the sub-VLANs. Primary VLANs deliver frames downstream, isolated VLANs carry frames upstream, and community VLANs allow communication within the same group and to promiscuous ports. The configuration binds VLANs into a private VLAN domain, maps host ports to secondary VLANs, and maps a promiscuous port to all secondary VLANs to allow inter-subnet communication.
MTU (maximum transmission unit) & MRU (maximum receive unit)
MTU (maximum transmission unit) & MRU (maximum receive unit)NetProtocol Xpert MTU refers to the largest size packet that can be transmitted out of a network interface. The path MTU is the lowest MTU of any interface along the transmission path. If a packet is larger than the path MTU, it will be fragmented or dropped. PMTUD allows endpoints to determine the optimal packet size to avoid fragmentation by starting with the local MTU and reducing size if packets are dropped.
OTV Configuration
OTV ConfigurationNetProtocol Xpert This document provides instructions for setting up and configuring OTV (Overlay Transport Virtualization) in a lab environment to connect two data center sites. The key steps include:
1. Setting up the physical lab topology with two Nexus 7000 switches acting as OTV edge devices in each site, with dedicated VDCs for OTV.
2. Configuring OTV features and licenses on the edge devices, defining the site VLAN and extended VLANs, and configuring join interfaces to connect the devices.
3. Creating overlay interfaces on the edge devices and associating the control and data multicast groups.
4. Verifying the OTV configuration and checking for adjacencies between edge devices
Cisco OTV
Cisco OTV NetProtocol Xpert This document discusses Cisco OTV (Overlay Transport Virtualization) and how it separates STP domains between sites, allows different STP technologies per site, handles multi-homing between sites using an Authoritative Edge Device (AED) to prevent loops, and optimizes the forwarding of different traffic types including unicast, multicast, broadcast, and ARP packets between sites while supporting MAC mobility. It also discusses how OTV isolates FHRP protocols between sites.
OTV(Overlay Transport Virtualization)
OTV(Overlay Transport Virtualization)NetProtocol Xpert OTV is a technology that provides layer 2 extension capabilities between different data centers without using tunnels. It encapsulates layer 2 traffic with an IP header and transports it across an IP network. OTV devices called edge devices perform layer 2 learning and forwarding within a data center and encapsulation functions to extend layer 2 traffic across sites using IP addresses and multicast groups for control and data plane MAC address advertisement and traffic forwarding between sites.
Recently uploaded (20)
NALCO Green Anode Plant,Compositions of CPC,Pitch
NALCO Green Anode Plant,Compositions of CPC,Pitcharpitprachi123 Its a pdf about all the process involving in the green anode production
Decoding Kotlin - Your Guide to Solving the Mysterious in Kotlin - Devoxx PL ...
Decoding Kotlin - Your Guide to Solving the Mysterious in Kotlin - Devoxx PL ...João Esperancinha Kotlin can be very handy and easy to use. Kotlin offers the possibility to develop code that is easy to understand, safe, immutable, and thus predictable and follows standards that avoid side effects. I realized that very quickly after I started my Kotlin journey that already amounts to more than 5 years.
This is the third version of this presentation focused on more detail explaining inline, crossinline, tailrec and as a bonus a quick run through unnamed classes.
Week 6- PC HARDWARE AND MAINTENANCE-THEORY.pptx
Week 6- PC HARDWARE AND MAINTENANCE-THEORY.pptxdayananda54 Basics of computer hardware for beginners
Modern multi-proposer consensus implementations
Modern multi-proposer consensus implementationsFrançois Garillot Multi-proposer consensus protocols let multiple validators propose blocks in parallel, breaking the single-leader throughput bottleneck of classic designs. Yet the modern multi-proposer consensus implementation has grown a lot since HotStuff. THisworkshop will explore the implementation details of recent advances – DAG-based approaches like Narwhal and Sui’s Mysticeti – and reveal how implementation details translate to real-world performance gains. We focus on the nitty-gritty: how network communication patterns and data handling affect throughput and latency. New techniques such as Turbine-like block propagation (inspired by Solana’s erasure-coded broadcast) and lazy push gossip broadcasting dramatically cut communication overhead. These optimizations aren’t just theoretical – they enable modern blockchains to process over 100,000 transactions per second with finality in mere milliseconds redefining what is possible in decentralized systems.
A Cluster-Based Trusted Secure Multipath Routing Protocol for Mobile Ad Hoc N...
A Cluster-Based Trusted Secure Multipath Routing Protocol for Mobile Ad Hoc N...IJCNCJournal Mobile Ad Hoc Network (MANET) is a self-organizing and flexible system. MANET systems manage sensitive data from many distinct applications in various domains. Its dynamic nature increases its vulnerability to numerous types of security threats. Many of the present approaches using indirect approaches provide false approximations of trust degrees. It is significantly required a good routing system that meets Quality of Service (QoS) standards and enhances network performance. In this paper purposed cluster-based trustworthy safe multipath routing (CTSMP-Routing) for mobile ad hoc networks (MANETs). Load balancing challenge is addressed by using a modified proportional topology optimization (MPTO) approach using geographical data related to network nodes. The Enhanced Seeker Search Optimization (ESSO) approach is used to compute trust degrees after the clustering phase considering numerous network constraints including node mobility, received signal strength, energy consumption, and cooperation rate. Assumed to be the service node, the node showing the highest degree of trust manages inter-cluster routing. We have developed a hybrid soft computing approach termed the multi-layer deep recurrent neural network (ML-DRNN) to enhance the optimal path-finding process. This method selects, among many routes between source and destination nodes, the best one quickly. The outcomes of this paper demonstrate that CTSMP-Routing provides effective protection against several attack paths within the MANET environment and displays better performance in regard to quality of service (QoS) requirements.
Complete guidance book of Asp.Net Web API
Complete guidance book of Asp.Net Web APIShabista Imam Unlock the full potential of modern web development with the Complete Guidance Book of ASP.NET Web API—your all-in-one resource for mastering RESTful services using Microsoft’s powerful ASP.NET Core framework. This book takes you on a step-by-step journey from beginner to expert, covering everything from routing and controllers to security, performance optimization, and real-world architecture.
362 Alec Data Center Solutions-Slysium Data Center-AUH-Glands & Lugs, Simplex...
362 Alec Data Center Solutions-Slysium Data Center-AUH-Glands & Lugs, Simplex...djiceramil submittal
Pavement and its types, Application of rigid and Flexible Pavements
Pavement and its types, Application of rigid and Flexible PavementsSakthivel M Pavement and its types, Application of rigid and Flexible Pavements
Engineering Mechanics Introduction and its Application
Engineering Mechanics Introduction and its ApplicationSakthivel M Engineering Mechanics Introduction
WIRELESS COMMUNICATION SECURITY AND IT’S PROTECTION METHODS
WIRELESS COMMUNICATION SECURITY AND IT’S PROTECTION METHODSsamueljackson3773 In this paper, the author discusses the concerns of using various wireless communications and how to use
them safely. The author also discusses the future of the wireless industry, wireless communication
security, protection methods, and techniques that could help organizations establish a secure wireless
connection with their employees. The author also discusses other essential factors to learn and note when
manufacturing, selling, or using wireless networks and wireless communication systems.
Microwatt: Open Tiny Core, Big Possibilities
Microwatt: Open Tiny Core, Big PossibilitiesIBM Microwatt is a lightweight, open-source core based on the OpenPOWER ISA.
It’s designed for FPGAs and easy experimentation in chip design.
Ideal for education, prototyping, and custom silicon development.
Fully open, it empowers developers to learn, modify, and innovate.
Abraham Silberschatz-Operating System Concepts (9th,2012.12).pdf
Abraham Silberschatz-Operating System Concepts (9th,2012.12).pdfShabista Imam Complete book of operating system edition 9
Tally.ERP 9 at a Glance.book - Tally Solutions .pdf
Tally.ERP 9 at a Glance.book - Tally Solutions .pdfShabista Imam Tally.ERP 9 at a Glance.book, a fully completed guidance to learn tally erp 9.0
Dynamic Access List
- 1. DYNAMIC (LOCK-AND-KEY) ACCESS LIST CONFIGURATION WWW.NETPROTOCOLXPERT.IN
- 2. • DYNAMIC (LOCK-AND-KEY) ACCESS CONTROL LISTS ARE USED TO BLOCK USER TRAFFIC UNTIL THE USER TELNET TO THE ROUTER. • DYNAMIC ACCESS LIST IS BASED ON EXTENDED ACL WHICH STARTS WITH AN ENTRY THAT BLOCKS TRAFFIC THROUGH THE ROUTER. WHEN THE USER TRY TO TELNET TO THE ROUTER A DYNAMIC ENTRY IS ADDED • IN THE ACL THAT ALLOW USER TRAFFIC TO PASS, AND TELNET CONNECTION IS DROPPED. THEN USER TRAFFIC WILL PASS THROUGH THE ROUTER UNTIL TIMEOUT TIMER EXPIRE.
- 3. A ROUTER THAT WILL FILTER CLIENT TRAFFIC TO THE SERVER BY USING A DYNAMIC ACCESS LIST. WE CONFIGURED ALL INTERFACES WITH THEIR IP’S FROM THE TOPOLOGY, AND ON CLIENT AND SERVER WE ADDED A DEFAULT ROUTE WHICH POINTS TO THE ROUTER, TO REACH SERVER FROM CLIENT AND VICE VERSA.
- 4. PING FROM CLIENT TO SERVER • CLIENT#PING 172.16.0.2 • TYPE ESCAPE SEQUENCE TO ABORT. • SENDING 5, 100-BYTE ICMP ECHOS TO 172.16.0.2, TIMEOUT IS 2 SECONDS: • !!!!! • SUCCESS RATE IS 100 PERCENT (5/5), ROUND-TRIP MIN/AVG/MAX = 36/47/80 MS
- 5. • FURTHER WE NEED TO BLOCK CLIENT TRAFFIC TO SERVER UNTIL THE CLIENT TELNETS TO ROUTER, AND TRAFFIC ACCESS THROUGH THE ROUTER IS GRANTED. BUT BEFORE WE CONFIGURE THE ACL, WE NEED TO CONFIGURE TELNET ACCESS ON ROUTER. • USERNAME USR PASSWORD 0 PASS • ENABLE SECRET PASS • LINE VTY 0 4 • LOGIN LOCAL • AUTOCOMMAND ACCESS-ENABLE HOST TIMEOUT 5 • WE CREATED A USERNAME (USR) AND A PSSWORD (PASS) AND CONFIGURED TO LOGIN LOCAL ON ROUTER (NOT ON AN AUTHENTICATION SERVER). THE LINE “AUTOCOMMAND ACCESS-ENABLE HOST TIMEOUT 5” WILL TRIGGER THE ACL TO CREATE A TEMPORARY ACCESS LIST ENTRY AND ENABLE ACCESS FOR THE HOST FROM WHICH THE TELNET SESSION WAS ORIGINATED. THE TIMEOUT 5 IS IDLE TIMEOUT, IF NO ACTIVITY WILL HAPPEN WITHIN THESE 5 MINUTES THE ACCESS WILL BE BLOCKED. NOW, THE TIME HAS COME FOR DYNAMIC ACL. IT IS DONE UNDER GLOBAL CONFIGURATION MODE
- 6. • IP ACCESS-LIST EXTENDED 100 • PERMIT TCP 10.0.0.0 0.0.0.255 HOST 10.0.0.1 EQ TELNET • DYNAMIC MYLIST TIMEOUT 5 PERMIT IP 10.0.0.0 0.0.0.255 172.16.0.0 0.0.0.255 • INTERFACE FASTETHERNET 0/0 • IP ACCESS-GROUP 100 IN • THE FIRST LINE IN THE ACL WILL GRANT ACCESS TO TELNET ROUTER ON 10.0.0.1 IP ADDRESS FROM 10.0.0.0/24 NETWORK. SECOND LINE IS THE PART OF DYNAMIC ACCESS LIST. THIS LINE ALLOW TRAFFIC TO FLOW FROM CLIENT TO SERVER. IN THIS CASE TIMEOUT IS THE PERIOD OF TIME THE TRAFFIC IS ALLOWED TO PASS. THE ACL IS APPLIED TO INTERFACE FA 0/0 AS INBOUND
- 7. • ROUTER(CONFIG-EXT-NACL)#DO SHOW ACCESS-LIST • EXTENDED IP ACCESS LIST 100 • 10 PERMIT TCP 10.0.0.0 0.0.0.255 HOST 10.0.0.1 EQ TELNET • 20 DYNAMIC MYLIST PERMIT IP 10.0.0.0 0.0.0.255 172.16.0.0 0.0.0.255 PING FROM CLIENT TO SERVER • CLIENT#PING 172.16.0.2 • TYPE ESCAPE SEQUENCE TO ABORT. • SENDING 5, 100-BYTE ICMP ECHOS TO 172.16.0.2, TIMEOUT IS 2 SECONDS: • UUUUU • SUCCESS RATE IS 0 PERCENT (0/5)
- 8. • TELNET TO ROUTER TO INITIATE DYNAMIC ACL ENTRY AND ALLOW TRAFFIC TO PASS. • CLIENT#TELNET 10.0.0.1 • TRYING 10.0.0.1 ... OPEN • USER ACCESS VERIFICATION • USERNAME: USR • PASSWORD: • [CONNECTION TO 10.0.0.1 CLOSED BY FOREIGN HOST] • CLIENT#
- 9. • NOW WE HAVE 5 MINUTES TO ENJOY OUR TRAFFIC FLOW FROM CLIENT TO SERVER. I ISSUED A CONTINUOUS PING : • CLIENT#PING 172.16.0.2 REPEAT 1000000 • TYPE ESCAPE SEQUENCE TO ABORT. • SENDING 1000000000, 100-BYTE ICMP ECHOS TO 172.16.0.2, TIMEOUT IS 2 SECONDS: • !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! • ... AFTER FIVE MINUTES • !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!UUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UUUUUUUUUUUU
- 10. • NOTE THAT DURING 5 MINUTES IN THE ACL A NEW ENTRY WAS PRESENT, SEE BELOW • ROUTER#SHOW IP ACCESS-LISTS • EXTENDED IP ACCESS LIST 100 • 10 PERMIT TCP 10.0.0.0 0.0.0.255 HOST 10.0.0.1 EQ TELNET (81 MATCHES) • 20 DYNAMIC MYLIST PERMIT IP 10.0.0.0 0.0.0.255 172.16.0.0 0.0.0.255 • PERMIT IP HOST 10.0.0.2 172.16.0.0 0.0.0.255 (3251 MATCHES) (TIME LEFT 299) • THE LAST ENTRY WAS CREATED DYNAMICALLY AND ALLOW TRAFFIC FROM HOST 10.0.0.2 (CLIENT) TO GO TO 172.16.0.0/24 NETWORK (SERVER NETWORK).