Up and Running SSH Service - Part 1
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The document outlines a webinar held by GLC Networks on SSH, discussing topics such as SSH application, implementation, and security protocols. It introduces the trainer, Achmad Mardiansyah, and highlights the company's expertise in networking and IT consulting. The agenda covers prerequisite knowledge, live practice, and invites participants to engage in a Q&A session.
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Internal BGP tuning: Mesh peering to avoid loop
Internal BGP tuning: Mesh peering to avoid loopGLC Networks The document outlines a webinar conducted by GLC Networks on internal BGP tuning and mesh peering to prevent routing loops. It provides an introduction to BGP, the prerequisites for understanding the presentation, and detailed explanations of routing concepts, protocols, and administrative distances. The session includes both theoretical knowledge and live practice components, facilitating participant engagement and practical learning.
BGP tuning: Peer with loopback
BGP tuning: Peer with loopbackGLC Networks The document outlines a webinar on BGP tuning hosted by GLC Networks, covering topics such as BGP configuration, peer connections, and routing principles. The trainer, Achmad Mardiansyah, has extensive experience in network support and is a certified trainer. The agenda includes an introduction to BGP, practical exercises, and a Q&A session.
BGP security tuning: pull-up route
BGP security tuning: pull-up routeGLC Networks The document covers a webinar on BGP security tuning hosted by GLC Networks, detailing the agenda, trainer's background, prerequisite knowledge, and introduction to BGP concepts and routing protocols. It emphasizes the intricacies of BGP, including path attributes, best path selection algorithms, and dynamic versus static routing. The workshop aims to equip participants with knowledge on BGP practices through live practice sessions and discussions.
BGP troubleshooting: route origin
BGP troubleshooting: route originGLC Networks The document details a BGP troubleshooting webinar organized by GLC Networks, led by expert Achmad Mardiansyah, covering key topics such as BGP attributes, routing tables, and practical exercises. It includes an introduction to GLC and the trainer's background, alongside prerequisites for attendees regarding network knowledge. The agenda also discusses routing protocols and the BGP best path selection process with comprehensive explanations of attributes and routing adjustments.
Steering traffic in OSPF: Interface cost
Steering traffic in OSPF: Interface costGLC Networks The document outlines a webinar hosted by GLC Networks on December 1, 2022, focusing on OSPF (Open Shortest Path First) routing protocol. It covers topics such as interface cost, path selection, routing tables, and dynamic routing concepts, as well as administrative distance and the OSPF protocol's operation within a network. The webinar also includes practical sessions and Q&A segments for participants to engage and clarify their understanding of the material presented.
Tuning OSPF: Bidirectional Forwarding Detection (BFD)
Tuning OSPF: Bidirectional Forwarding Detection (BFD)GLC Networks The document outlines the content of a GLC Networks webinar focusing on tuning OSPF and Bidirectional Forwarding Detection (BFD), scheduled for November 24, 2022. It provides information about the company, trainer qualifications, prerequisite knowledge for participants, and details about key concepts like routing protocols, OSPF workings, and BFD applications. The webinar aims to equip participants with practical skills and insights related to dynamic routing and network management.
Tuning OSPF: Prefix Aggregate
Tuning OSPF: Prefix AggregateGLC Networks The document outlines an upcoming webinar on tuning OSPF routing protocols. It provides an agenda that will include a review of prerequisite networking knowledge on topics like routing, OSPF areas, and a live practice and Q&A session. Background is given on the trainer and their experience with networks in various countries. Finally, a sample network topology is shown that will likely be used to demonstrate OSPF configurations.
Tuning OSPF: area hierarchy, LSA, and area type
Tuning OSPF: area hierarchy, LSA, and area typeGLC Networks The document presents a webinar by GLC Networks on tuning OSPF (Open Shortest Path First) including agenda points like OSPF area hierarchy and link-state routing. The trainer, Achmad Mardiansyah, discusses the prerequisites for understanding OSPF, router types, and routing strategies such as static and dynamic routing. Key OSPF concepts addressed include neighbor discovery, link-state packets, and the hierarchical structure of OSPF areas.
Stable OSPF: choosing network type.pdf
Stable OSPF: choosing network type.pdfGLC Networks The document is a presentation for a webinar on stable OSPF (Open Shortest Path First) networking hosted by GLC Networks, featuring trainer Achmad Mardiansyah. It covers OSPF basics, network types, and dynamic routing protocols, including prerequisites like TCP/IP and routing knowledge. Participants are guided through concepts of routing tables, encapsulation, and specific OSPF configurations such as neighbor discovery and link-state advertisements.
GIT as Mikrotik Configuration Management
GIT as Mikrotik Configuration ManagementGLC Networks The document is a presentation for a webinar by GLC Networks focused on Mikrotik configuration management using Git, conducted by trainer Achmad Mardiansyah. It covers topics such as the prerequisites for the training, methods for managing and storing Mikrotik configurations, and the advantages of using Git for configuration management. Participants are invited to engage in live practice and Q&A sessions, as well as to provide feedback on the event.
Policy Based Routing with Indirect BGP - Part 2
Policy Based Routing with Indirect BGP - Part 2GLC Networks Dokumen ini menjelaskan tentang routing berbasis kebijakan dengan BGP, termasuk profil penulis yang merupakan seorang ahli Mikrotik. Terdapat persyaratan dan tutorial mengenai penggunaan BGP, termasuk skenario simulasi untuk mengatur peering BGP. BGP adalah protokol routing dinamis yang digunakan untuk bertukar informasi antar sistem otonom di internet.
Policy Based Routing with Indirect BGP - Part 1
Policy Based Routing with Indirect BGP - Part 1GLC Networks The document presents a webinar on policy-based routing with indirect BGP hosted by GLC Networks, led by trainer Achmad Mardiansyah. It covers essential networking concepts, router functions, routing techniques (both static and dynamic), and the differences between interior and exterior gateway protocols, specifically focusing on BGP and OSPF. Additionally, it invites participants to engage in live practices and Q&A sessions while promoting GLC's training opportunities and resources.
Automatic Backup via FTP - Part 2
Automatic Backup via FTP - Part 2GLC Networks Dokumen ini menjelaskan proses otomatisasi backup RouterOS dengan menggunakan FTP server berbasis Linux, serta teknik scripting yang mirip dengan bahasa pemrograman. Diharapkan pengguna dapat mengatur FTP server, melakukan backup secara terjadwal, dan memanfaatkan skrip RouterOS untuk mengoptimalkan manajemen data. Terdapat juga panduan tentang pembuatan cronjob dan kompresi data menggunakan tar.gz.
Automatic Backup via FTP - Part 1
Automatic Backup via FTP - Part 1GLC Networks The document provides an overview of a webinar hosted by GLC Networks on automatic backup using FTP, covering key topics such as FTP protocol, Mikrotik FTP support, and live practice sessions. It introduces the trainers and their qualifications while also presenting the prerequisites for participants. Additionally, it details the structure of the event and encourages audience engagement through Q&A and feedback.
Voice Services, From Circuit Switch to VoIP
Voice Services, From Circuit Switch to VoIPGLC Networks GLC Networks hosted a webinar on voice services, covering topics from traditional voice service to Voice over IP (VoIP), presented by Achmad Mardiansyah, a certified trainer with extensive experience in networking and telecommunications. The agenda included an introduction, review of prerequisite knowledge, practical sessions, and Q&A, aimed at sharing insights on telecommunications evolution and modern practices. Participants were encouraged to engage, ask questions, and share their own experiences, emphasizing the collaborative learning environment of GLC's educational events.
MPLS on Router OS V7 - Part 2
MPLS on Router OS V7 - Part 2GLC Networks The document outlines a webinar lab practice on MPLS using RouterOS v7, led by M. Taufik Nurhuda, a certified Mikrotik trainer. It discusses the differences between MPLS on RouterOS v6 and v7, including configuration aspects such as LDP and VPLS. Additional resources and configurations are provided through linked documentation.
MPLS on Router OS V7 - Part 1
MPLS on Router OS V7 - Part 1GLC Networks The document outlines a webinar hosted by GLC Networks on MPLS with a focus on prerequisites for attendees and an introduction to key concepts in networking, including IP addressing, routing, and MPLS technology. It details the experience and qualifications of the trainer, Achmad Mardiansyah, and provides an overview of the agenda, which includes live practice sessions and a Q&A segment. The content primarily addresses techniques and protocols relevant to service providers and network management.
BGP on RouterOS7 - Part 2
BGP on RouterOS7 - Part 2GLC Networks The document outlines a webinar by M. Taufik Nurhuda focusing on BGP (Border Gateway Protocol) configurations in RouterOS version 7. It highlights features such as the ability to convert configurations from version 6 to 7, auto-selection of local addresses, and various peering options. Additionally, it details the setup process for BGP templates and network advertisement from IP firewall address lists.
OSPF On Router OS7 - Part 2
OSPF On Router OS7 - Part 2GLC Networks The document is a profile for M. Taufik Nurhuda, a Mikrotik Academy Trainer discussing OSPF features in RouterOS version 7 during a webinar. Key features include the integration of OSPFv2 and OSPFv3, the use of templates for interface configuration, and monitoring capabilities. It also mentions routing filters and customization options for OSPF settings.
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Up and Running SSH Service - Part 1
- 1. www.glcnetworks.com UP and RUNNING SSH service GLC collaboration webinar, 9 nov 2021 Achmad Mardiansyah M. Taufik nurhuda 1 Source: wikipedia.com
- 2. www.glcnetworks.com Agenda ● Introduction ● Review prerequisite knowledge ● SSH application ● SSH implementation ● Q & A 2
- 4. www.glcnetworks.com What is GLC? ● Garda Lintas Cakrawala (www.glcnetworks.com) ● Based in Bandung, Indonesia ● Areas: Training, IT Consulting ● Certified partner for: Mikrotik, Ubiquity, Linux foundation ● Product: GLC radius manager ● Regular event 4
- 5. www.glcnetworks.com Trainer Introduction ● Name: Achmad Mardiansyah ● Base: bandung, Indonesia ● Linux user since 1999, mikrotik user since 2007, UBNT 2011 ● Mikrotik Certified Trainer (MTCNA/RE/WE/UME/INE/TCE/IPv6) ● Mikrotik/Linux Certified Consultant ● Website contributor: achmadjournal.com, mikrotik.tips, asysadmin.tips ● More info: http://au.linkedin.com/in/achmadmardiansyah 5
- 6. www.glcnetworks.com Past experience 6 ● 2021 (Congo DRC, Malaysia): network support, radius/billing integration ● 2020 (Congo DRC, Malaysia): IOT integration, network automation ● 2019, Congo (DRC): build a wireless ISP from ground-up ● 2018, Malaysia: network revamp, develop billing solution and integration, setup dynamic routing ● 2017, Libya (north africa): remote wireless migration for a new Wireless ISP ● 2016, United Kingdom: workshop for wireless ISP, migrating a bridged to routed network
- 7. www.glcnetworks.com About GLC webinar? ● First webinar: january 1, 2010 (title: tahun baru bersama solaris - new year with solaris OS) ● As a sharing event with various topics: linux, networking, wireless, database, programming, etc ● Regular schedule ● Irregular schedule: as needed ● Checking schedule: http://www.glcnetworks.com/schedule ● You are invited to be a presenter ○ No need to be an expert ○ This is a forum for sharing: knowledge, experiences, information 7
- 8. www.glcnetworks.com Please introduce yourself ● Your name ● Your company/university? ● Your networking experience? ● Your general experience? ● Your expectation from this course? 8
- 9. www.glcnetworks.com Prerequisite ● This presentation some prerequisite knowledge ● We assume you already know: ○ Networking in general ○ Computer network 9
- 11. www.glcnetworks.com 7 OSI layer & protocol 11 ● OSI layer Is a conceptual model from ISO (International Standard Organization) for project OSI (Open System Interconnection) ● When you send a message with a courier, you need to add more info to get your message arrived at the destination (This process is called encapsulation) ● What is protocol ○ Is a set of rules for communication ○ Available on each layer ● Communication consist of series encapsulation ○ SDU: service data unit (before PDU) ○ PDU: protocol data unit (after header is added)
- 12. www.glcnetworks.com Layered model (TCP/IP vs ISO) and encapsulation 12 / datagram
- 13. www.glcnetworks.com Layer 4 header (which one is TCP?) 13
- 14. www.glcnetworks.com Layer 3 header (which one is IPv4?) 14
- 15. www.glcnetworks.com Ethernet header (which is the MTU?) 15
- 17. www.glcnetworks.com Did you notice? ● There is a big overhead on encapsulation process ● More encapsulation means less payload? 17
- 18. www.glcnetworks.com Layers in internet communication 18 Source: APNIC
- 20. www.glcnetworks.com General Security Aspects (CIA) ● Confidentiality. prevents unauthorized use or disclosure of information ● Integrity. safeguards the accuracy and completeness of information ● Availability. authorized users have reliable and timely access to information 20
- 21. www.glcnetworks.com AAA security • Authentication: only registered user can access – What you know: username and password – What you have: token, sms – What you are: retina scan, fingerprint • Authorization: define rights of a user – Access control – Data access control – Restriction – Type of Service • Accounting: recording of what user is doing (useful for billing/reporting) – Traffic volume – Online time – Session – Log: login, logout Mainly implemented using radius www.glcnetworks.com 21
- 22. www.glcnetworks.com Goals of Information Security (CIA) ● Confidentiality. prevents unauthorized use or disclosure of information ● Integrity. safeguards the accuracy and completeness of information ● Availability. authorized users have reliable and timely access to information 22
- 23. www.glcnetworks.com Security mechanism… Source: william stalling, network security essentials
- 24. www.glcnetworks.com Cryptography - encryption ● practice and study of techniques for secure communication in the presence of third parties. ● cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages ● General implementation: ○ Start with asymmetric encryption, to transfer shared-key ○ Switch to symmetric encryption 24 Source: medium/com/hackernoon
- 26. www.glcnetworks.com A bit of history, accessing remote nodes... Remote access protocols ● Command line interface: ○ Lighter, faster ○ Less bandwidth ○ Example: ■ Telnet ■ Rsh (remote shell) ○ Issue: no security (plain text) → alternatives : SSH ● GUI ○ Require higher bandwidth ○ slower ○ Example: ■ VNC ■ Remote desktop 26
- 27. www.glcnetworks.com SSH ● An alternative of insecure protocol (telnet, rsh) ● Open standard: RFC 4250 ● Security feature: ○ Asymmetric encryption for initial connection ○ Symmetric encryption for data exchange ○ Authentication: ■ key-based authentication ■ password-based authentication ● Implementation: ○ Openssh (openbsd community) ○ Solaris SSH ○ Other ssh ○ 27
- 29. www.glcnetworks.com preparation ● SSH client ● SSH parameters ○ SSH address ○ SSH port ○ SSH username ○ SSH password 29
- 31. www.glcnetworks.com Interested? Just come to our training... ● Topics are arranged in systematic and logical way ● You will learn from experienced teacher ● Not only learn the materials, but also sharing experiences, best-practices, and networking 31
- 32. www.glcnetworks.com End of slides ● Thank you for your attention ● Please submit your feedback: http://bit.ly/glcfeedback ● Find our further event on our website : https://www.glcnetworks.com/en/ ● Like our facebook page: https://www.facebook.com/glcnetworks ● Slide: https://www.slideshare.net/glcnetworks/ ● Discord (bahasa indonesia): (https://discord.gg/6MZ3KUHHBX) ● Recording (youtube): https://www.youtube.com/c/GLCNetworks ● Stay tune with our schedule ● Any questions? 32