Firewalls Introduction This lecture discusses about security mechanisms in the Internet namely Firewall . In brief, It's a configuratio...

Social Networking had forever been a chief idea of human relationships and it existed since time long time. However the world woke up and h...

Wireless Networks Introduction As the need of communication became more and more demanding, new technologies in the field of networks devel...

PEM & SNMP PEM(Privacy Enhanced Mail) This is a IETF standard , a result of a group working for a long time. The basic idea is have pri...