June 2016
Intermediate to advanced
152 pages
3h 30m
English
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Using ip6tables to firewall your IPv6 traffic
Firewalling IPv6 traffic on Linux is handled by the ip6tables command. This tool is the IPv6 version of the iptables command we've already used, and it operates in almost exactly the same manner. The big difference is that with IPv6 the use of NAT is highly discouraged.
How to do it…
Let's run the command to establish.
# ip6tables -6 -A INPUT -i lo -j ACCEPT # ip6tables -6 -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # ip6tables -6 -A INPUT -p tcp --dport 22 -j ACCEPT # ip6tables -6 -P INPUT DROP # ip6tables -6 -P FORWARD DROP # ip6tables -6 -P OUTPUT ACCEPT # ip6tables -6 -A FORWARD -i eth0 -j ACCEPT # ip6tables -6 -A FORWARD -i eth1 -o eth0 -m \ state --state RELATED,ESTABLISHED -j ACCEPT ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.