Lecture notes on Computer and network security: Lecture 18 - Avinash Kak
Lecture notes on Computer and network security: Lecture 18 - Avinash Kak
Lecture 18: Packet filtering firewalls (Linux). The goals of this chapter are: Packet-filtering vs. proxy-server firewalls; the four iptables supported by the Linux kernel: filter, nat, mangle, and raw; creating and installing new firewall rules; structure of the filter table, connection tracking and extension modules, designing your own filtering firewall.