'Circuit level gateway' presentation slideshows

Firewalls, VPNs, and Modem Security

Firewalls, VPNs, and Modem Security. Lesson 07. Filters and Firewalls. Filter -- a software program or device that monitors incoming and outgoing packets on a computer network to determine whether the packets should be allowed to enter or leave a computer system.

746 views • 56 slides

Firewall & IP Tables

Firewall & IP Tables . Firewall. IP Tables. 32-4 FIREWALLS.

700 views • 54 slides

Cryptography and Network Security Chapter 20 Firewalls

800 views • 38 slides

Security Firewall

1.14k views • 30 slides

Network Security

415 views • 30 slides

What is a Firewall?

What is a Firewall?. A firewall is hardware or software (or a combination of hardware and software) that monitors the transmission of packets of digital information that attempt to pass through the perimeter of a network.

257 views • 25 slides