Network Security

NETWORK SECURITY

Network Security

1. Introduction

• Need for securing a network.
• Principles of Network Security. 
• Cyber Security and Information Security.
• Type of attacks. 
• Introduction to cyber crime. 
• Cyber law-Indian Perspective (IT Act 2000 and amended 2008).
• Cyber ethics. 
• Ethical hacking. 
• What is hacking? attacker. 
• Phreaker .

2. Securing Data over Internet

• Introduction to basic encryption and decryption. 
• Concept of symmetric and asymmetric key cryptography. 
• Overview of DES, RSA and PGP. 
• Introduction to Hashing.
• MD5.
• SSL. 
• SSH.
• HTTPS.
• Digital Signatures. 
• Digital certification.
• IPSec.

3. Virus, Worms and Trojans

• Definitions.
• Preventive measures – access central.
• Checksum verification. 
• Process configuration. 
• Virus scanners. 
• Heuristic scanners. 
• Application level virus scanners. 
• Deploying virus protection.

4. Firewalls

• Definition and types of firewalls. 
• Firewall configuration. 
• Limitations of firewall.

5. Intrusion Detection System (IDS) 

• Introduction.
• IDS limitations – teardrop attacks. 
• Counter measures. 
• Host based IDS set up.

6. Handling Cyber Assets 

• Configuration policy as per standards. 
• Disposable policy.

7. Virtual Private Network (VPN) 

• Basics setting of VPN. 
• VPN diagram. 
• Configuration of required objects.
• Exchanging keys.
• Modifying security policy.

8. Disaster and Recovery

• Disaster categories. 
• Network disasters – cabling. 
• Topology.
• Single point of failure. 
• Save configuration files. 
• Server disasters – UPS, RAID. 
• Clustering. 
• Backups.
• Server recovery.