1. Networking & Security
Made By:
Ashish Sharma
NEC

2. Topics
Networks
Network Devices
Network Security
Internet Security
Application Security

3. Types Of Networks
•
LAN: Local Area Network
For Small Business
•
MAN: Metropolitan area network
For Cities or Campus
•
WAN: Wide Area Network
Regional or National Networks

4. Devices Used By Networks
•
Bridges (Old type of Switches)
•
Switches (For LAN basically connect Systems)
•
Routers (For inter- network communication)

5. Interfaces for these Devices
Console Interface

6. GUI Interface

7. Network Certifications
Key Players in Network Certifications:
•
Cisco (CCNA, CCNP)
•
Juniper (JNCIA, JNCIE,JNCIP, JNCIS)
•
Microsoft ( MCSE, MCSA)

8. Classification Of Cisco Exams
•
Routing and Switching Certification Exams
•
Data Center Certification Exams
•
Return to Top
•
Design Certification Exams
•
Security Certification Exams
•
Storage Networking Certification Exams
•
Voice Certification Exams
•
Wireless Certification Exams

9. Cisco Exams
•
CCENT Cisco Certified Entry Networking Technician
(ICND1) : Connecting Devices (1Exam)
•
CCNA Cisco Certified Network Associate (ICND1+
ICND2) :Routing and Switching (1Exam)
•
CCNP Cisco Certified Network Professional
To plan, implement, verify and troubleshoot networks
(3Exams)
•
CCIE Cisco Certified Internetwork Expert
More Complex Network (9Exams)

10. Juniper Exams
•
JNCIA - Juniper Networks Certified Internet
Associate (10 exams)
•
JNCIP - Juniper Networks Certified Internet
Professional (8 exams)
•
JNCIE - Juniper Networks Certified Internet Expert
(6 exams)
•
JNCIS - Juniper Networks Certified Internet
Specialist (13 exams)

11. Network Operating System
•
A networking operating system (NOS), also
referred to as the Dialoguer, is the software
that runs on a server and enables the server to
manage data, users, groups, security,
applications, and other networking functions.
•
Cisco: Cisco IOS (Internetwork Operating
System) (C/C++)
•
Juniper: JUNOS (C/C++)

12. Types Of Security
•
Internet Security (In between Client and
Server)
•
Network Security (Inside the Network)
•
Application Security( Application SDLC)

13. Internet Security
•
Network Layer Security: By Cryptography on TCP/IP including
SSL & TLS.
•
IPsec Protocol: Including Authentication Header &
Encapsulating Security payload.
•
Security Token: Online Sites Providing 6-digit code changing
randomly in 30-60 Sec.
•
Electronic Mail security (Email): Using PGP (Pretty Good
Privacy) for encrypting.
•
Message Authentication Code: Encrypting message by using
Code.

14. •Firewalls: Screening Network Traffic
Types of Firewalls
•Packet Filters: Processing Data Packet by Packet
•Circuit-Level Gateways: Operates at network level
•Application-Level Gateways: Operates at application level.

15. •
Malicious Software & Antivirus
•
Malware: User is tricked to download a
software
•
Virus: Code to steal data
•
Trojan Horse: Pretends as secure but
malicious (Keygen)
•
Spyware: Monitor Activites

16. Application Security
•
Measures taken throughout application life-
cycle to prevent flaws in Security Policies.
Includes
•
Input Validation
•
Authentication
•
Authorization
•
Configuration Mgmt.
•
Exception Management
•
Logging

17. Network Security
It consists of the provisions and policies adopted
by a network administrator to prevent and
monitor unauthorized access, misuse,
modification, or denial of a computer network.
Key Things:
Policies, Administrator, monitor, network,misuse,
modification

18. Security Management
•
Firewall
•
Antivirus
•
Wireless: WEP/WPA/WPA2
•
MAC Adress Filtering
•
Assign Static IP Address
•
Password changing on regular basis
•
Awareness program
•
Network Analyzer

19. Attacks To Be Prevented
•
DoS Attack
•
Spoofing
•
Man in the Middle
•
SQL Injection

20. Thanks
Any Queries?