Ethical hacking
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What Is a P–N Junction? Learn how P-type and N-type materials join to create a diode.
Depletion Region & Biasing: See how forward and reverse bias shape the voltage–current behavior.
V–I Characteristics: Understand the curve that defines diode operation.
Real-World Uses: Discover common applications in rectifiers, signal clipping, and more.
Ideal for electronics students, hobbyists, and engineers seeking a clear, practical introduction to P–N junction semiconductors.
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The YSPH Virtual Medical Operations Center Briefs (VMOC) were created as a service-learning project by faculty and graduate students at the Yale School of Public Health in response to the 2010 Haiti Earthquake. Each year, the VMOC Briefs are produced by students enrolled in Environmental Health Science Course 581 - Public Health Emergencies: Disaster Planning and Response. These briefs compile diverse information sources – including status reports, maps, news articles, and web content– into a single, easily digestible document that can be widely shared and used interactively. Key features of this report include:
- Comprehensive Overview: Provides situation updates, maps, relevant news, and web resources.
- Accessibility: Designed for easy reading, wide distribution, and interactive use.
- Collaboration: The “unlocked" format enables other responders to share, copy, and adapt seamlessly. The students learn by doing, quickly discovering how and where to find critical information and presenting it in an easily understood manner.
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The YSPH Virtual Medical Operations Center Briefs (VMOC) were created as a service-learning project by faculty and graduate students at the Yale School of Public Health in response to the 2010 Haiti Earthquake. Each year, the VMOC Briefs are produced by students enrolled in Environmental Health Science Course 581 - Public Health Emergencies: Disaster Planning and Response. These briefs compile diverse information sources – including status reports, maps, news articles, and web content– into a single, easily digestible document that can be widely shared and used interactively. Key features of this report include:
- Comprehensive Overview: Provides situation updates, maps, relevant news, and web resources.
- Accessibility: Designed for easy reading, wide distribution, and interactive use.
- Collaboration: The “unlocked" format enables other responders to share, copy, and adapt seamlessly. The students learn by doing, quickly discovering how and where to find critical information and presenting it in an easily understood manner.
CURRENT CASE COUNT: 817 (As of 05/3/2025)
• Texas: 688 (+20)(62% of these cases are in Gaines County).
• New Mexico: 67 (+1 )(92.4% of the cases are from Eddy County)
• Oklahoma: 16 (+1)
• Kansas: 46 (32% of the cases are from Gray County)
HOSPITALIZATIONS: 97 (+2)
• Texas: 89 (+2) - This is 13.02% of all TX cases.
• New Mexico: 7 - This is 10.6% of all NM cases.
• Kansas: 1 - This is 2.7% of all KS cases.
DEATHS: 3
• Texas: 2 – This is 0.31% of all cases
• New Mexico: 1 – This is 1.54% of all cases
US NATIONAL CASE COUNT: 967 (Confirmed and suspected):
INTERNATIONAL SPREAD (As of 4/2/2025)
• Mexico – 865 (+58)
‒Chihuahua, Mexico: 844 (+58) cases, 3 hospitalizations, 1 fatality
• Canada: 1531 (+270) (This reflects Ontario's Outbreak, which began 11/24)
‒Ontario, Canada – 1243 (+223) cases, 84 hospitalizations.
• Europe: 6,814
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Key concepts covered include:
✅ Definition and Types of Viscosity: Dynamic vs. Kinematic viscosity, cohesion, and adhesion.
⚙️ Methods of Measuring Viscosity:
Rotary Viscometer
Vibrational Viscometer
Falling Object Method
Capillary Viscometer
🌡️ Factors Affecting Viscosity: Temperature, composition, flow rate.
🩺 Clinical Relevance: Impact of blood viscosity in cardiovascular health.
🌊 Fluid Dynamics: Laminar vs. turbulent flow, Reynolds number.
🔬 Extension Techniques:
Chromatography (adsorption, partition, TLC, etc.)
Electrophoresis (protein/DNA separation)
Sedimentation and Centrifugation methods.
How to Subscribe Newsletter From Odoo 18 Website
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Ethical hacking
- 3. TYPES OF HACKERS White hat hacker Black hat hacker Gray hat hacker Ghost hacker Script kiddies
- 4. What is “Ethical Hacking” ? Penetration Testing Security Testing
- 5. Steps involved in Ethical Hacking : Signing of Contract Footprinting OR Reconnaisance Enumeration & Fingerprinting (Scanning) Identification of vulnerabilities Attack – Exploit the vulnerabilities Reporting
- 6. Signing of contract • A contract between the tester i.e. ethical hacker and organization i.e. client • specifies certain conditions and terms of test being conducted • signed by both the parties.
- 7. Footprinting OR Reconnaissance Collecting as much information about the target. Tools used – nslookup, traceroute, whois etc.
- 8. Enumeration & Fingerprinting (scanning) • Determining the target. • Identification of services and open ports. • Enumerating operating system. Tools used- Nmap, SNMP scanner, netcat, telnet etc.
- 9. Identification of vulnerabilities • Insecure configuration • Weak passwords • Unpatched vulnerabilities in services, operating system and application • Possible vulnerabilities in services, operating system and applications • Insecure programming • Weak Access control • Tools and Techniques used- Vulnerability scanners like Nessus, Listening to traffic, Password crackers, Default passwords, Brute force, Social engineering, SQL injection, vulnerability information website e.g. http://cve.mitre.org, http://www.securityfocus.com
- 10. Attack – Exploit the vulnerabilities • Obtain information(trophies) from the target system • Gaining normal access • Escalating privileges • Obtain access to other connected systems • Operating system attacks • Tools used- Nessus, Metasploit, Framework,
- 11. Tools
- 12. Thank you!