Chapter 9. Networking
iptables supports -C option
This update adds support for the
-Ccheck option to the iptables commands. Previously, there was no simple way to check if a certain rule existed. Now, the
-Coption can be used in a rule to check if a rule exists.
Support for IPv6 IP sets
This update adds support for IPv6 IP sets, as IP sets were not previously usable in IPv6 firewall rules.