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Course Content
Detailed Content of Network Security
0/1
Network Security Syllabus for Diploma
00:00
Network Security
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Introduction
00:00
Need For Securing a Network
00:00
Threats and Countermeasures
00:00
Principle of Security
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Types of Network Attacks
00:00
Introduction To Cyber Crime
00:00
Cyber Law Indian Perspective (IT ACT 2000)
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Need And Advantage of Cyber Law
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Cyber Ethics
00:00
WHAT IS HACKING
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Types of Hackers
00:00
Ethical Hacking
00:00
Securing data over internet
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Introduction
00:00
Introduction To Cryptography
00:00
Public key Cryptography
00:00
Digital Signatures
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Authentication In Public-Key Systems
00:00
Data Encryption Standards (DES)
00:00
RSA Encryption
00:00
PGP Encryption
00:00
Introduction To MD5
00:00
Overview Of SSL Encryption
00:00
Introduction To SSH
00:00
HTTPS
00:00
Digital Certificates
00:00
IPSEC
00:00
Viruses, Worms and Trojans
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Introduction to Virus
00:00
Types of Viruses
00:00
Preventive Measures:
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Access Control
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CHECKSUM
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Virus Scanner
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HEURISTIC SCAN
00:00
Virus Protection
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Firewalls
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Introduction
00:00
How Firewall Work
00:00
Types Of Firewall
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Firewall Configuration
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Limitation of Firewall
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Intrusion Detection Systems
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Introduction
00:00
IDS Overview
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Why We Need IDS
00:00
Types of IDS
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TEARDROP ATTACK
00:00
DENIAL-OF-SERVICE ATTACK
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Counter Measures
00:00
Handling Cyber Assets
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Introduction
00:00
Importance Of Cyber Security
00:00
Unprotected Computer
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Objectives Of a Cyber Security Programs
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Configuration Policy As Per Standards
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Disposable Policy
00:00
Virtual Private Network
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Introduction
00:00
How VPN Work
00:00
Implementing VPN
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Types Of VPN
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Categories of VPN
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Requirements for VPN’s
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Advantages And Disadvantages of VPN
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VPN Technologies
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Configuration of VPN Networks
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Internet Key Exchange
00:00
Security Policy
00:00
Disaster and Recovery
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Introduction to Disaster
00:00
Categories of Disaster
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Disaster Recovery
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Network Disaster
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Topology Failure:
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Modem Failure and DSL Fault
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Single Point Of Failure (SPOF)
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UPS
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RAID
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CLUSTERING
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BACKUPS
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Types of Backups
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Data Recovery
00:00
Network Security
About Lesson

Digital Certificates:

Digital certificates, issued by trusted Certificate Authorities (CAs), are electronic documents that authenticate the identity of entities (such as websites, servers, or individuals) and enable secure communication over the internet. These certificates contain key information, including the entity’s public key, validity period, and issuer details, all digitally signed by the CA to ensure authenticity. Digital certificates are widely used in SSL/TLS encryption to establish secure connections between clients and servers, safeguarding sensitive data from interception and tampering. They play a critical role in establishing trust online and are essential for protecting user privacy and security in various online transactions and interactions.

Certificate Authorities:

Certificate Authorities (CAs) are trusted organizations responsible for issuing digital certificates and verifying the identity of entities (such as websites, servers, or individuals) on the internet. CAs play a crucial role in the SSL/TLS encryption process, as they validate the authenticity of certificate applicants and ensure the integrity of digital certificates. They follow stringent validation procedures to verify domain ownership and authenticate the identity of certificate applicants, helping to establish trust between parties on the internet. Web browsers and other clients maintain a list of trusted CAs, and they rely on CAs to issue valid certificates for secure communication and transactions online.

Certificate Types:

  1. Personal Certificates: Personal certificates authenticate an individual’s identity online, often used for email encryption, digital signatures, and secure authentication.
  2. Server Certificates: Server certificates authenticate a server’s identity to clients, enabling secure communication over HTTPS, SMTPS, and other encrypted protocols on the internet.
  3. Software Publisher Certificates: Software publisher certificates verify the authenticity of software publishers and ensure that software downloads are from legitimate sources, enhancing trust and security for users.
  4. Certificate Authorities Certificates: Certificate Authorities (CAs) certificates validate the identity and authenticity of CAs themselves, ensuring the integrity of the digital certificate ecosystem and establishing trust in the online environment.

How a Certificate Is Issued:

A certificate is issued through the following steps:

  1. Certificate Request: The entity requesting the certificate (e.g., a website owner) submits a certificate signing request (CSR) to a Certificate Authority (CA), providing information such as their domain name and public key.
  2. Validation: The CA validates the information provided in the CSR to ensure the requester’s identity and domain ownership. This may involve verifying domain ownership through DNS records or conducting additional checks for organization validation or extended validation certificates.
  3. Certificate Issuance: Once validation is complete, the CA generates a digital certificate containing the requester’s public key, domain name, and other relevant information. The certificate is signed by the CA’s private key to establish trust.
  4. Certificate Distribution: The issued certificate is provided to the requester, who installs it on their server or device. Clients connecting to the server can then verify the certificate’s authenticity using the CA’s public key, establishing a secure connection.
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