Linux Networking
From GTALUG
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Linux Networking
The Linux Kernel supports various network devices (including numerous Ethernet cards) as well as the common Internet protocols IPv4 and IPv6.
It also supports firewall management mechanisms such as ipchains (now elderly) and iptables; the latter is a toolchain (parts of which reside in the kernel) which allows defining that varying sorts of network traffic are processed via specifiable policies. For instance, you might know that traffic coming from a certain network address is likely to be a system attack that should be discarded.
