The destination filename is up to you, but some Linux distributions
(notably Red Hat) refer to the files we used, inside their associated
/etc/init.d scripts.
Discussion
ipchains-save and iptables-save
print your firewall rules in a text format, readable by
ipchains-restore and
iptables-restore, respectively. [Recipe 2.20]
Tip
Our recipes using iptables-save,
iptables-restore,
ipchains-save, and
ipchains-restore will work for both
Red Hat and SuSE.
However, SuSE by default takes a
different approach. Instead of saving and restoring rules, SuSE
builds rules from variables set in
/etc/sysconfig/SuSEfirewall2.