reload iptables w/ initial settings

[Tzuriel]

I was working with iptables and have made some mistakes to where I'd like to flush everything and reload with the configuration that comes with Gentoo, but not sure how.

Thoughts?

[pjp]

By default, the location where rules are saved is IPTABLES_SAVE=/var/lib/iptables/rules-save as defined in /etc/conf.d/iptables.

Stop iptables, delete or move the "rules-save" file, and I believe you'll have the default rules the next time iptables is started (at least with openrc as /etc/init.d/iptables sets up some defaults).

If you don't specifically need iptables, you might instead consider using its successor, nftables.
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[trilithium]

If you haven't yet restarted the iptables service you should still have a copy of all your previous rules in the file mentioned by pjp and can restore them using the script iptables-restore: