Post by Jeff PengIs there a tool for maintaining the timeout for iptables rules?
for example, one IP would be blocked by my iptables for 24 hours, and
another IP should be blocked for one week.
iptables (which are currently implemented in nftables) don't have a native
timeout; you need to use an external tool to insert and remove them.
The best way of doing that is to have a separate table that you
call (for blocking purposes, called from INPUT; if you're
maintaining a firewall, from FORWARD) and use your tool to only
insert and remove lines from that table.
There's a package called fail2ban which is normally used to
inspect logs and issue ban rules based on the logs; it has a
timeout feature. It would be relatively easy to write a new
config for fail2ban rather than implement all the rest of this
yourself. Set up a couple of fake logs files, one for 24 hour
bans and one for 7 day bans, and write IPs to those files,
letting fail2ban take care of the rest.
-dsr-
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