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Groups > linux.debian.user > #270734

Re: timeout for iptables

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Jeff Peng wrote: 
> Is 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-
 
-- 
https://randomstring.org/~dsr/eula.html is hereby incorporated by reference.
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Thread

timeout for iptables Jeff Peng <jeff@simplemail.co.in> - 2024-07-02 13:50 +0200
  Re: timeout for iptables Dan Ritter <dsr@randomstring.org> - 2024-07-02 14:50 +0200
    Re: timeout for iptables Max Nikulin <manikulin@gmail.com> - 2024-07-02 16:10 +0200
      Re: timeout for iptables Dan Ritter <dsr@randomstring.org> - 2024-07-02 16:30 +0200
  Re: timeout for iptables Tim Woodall <debianuser@woodall.me.uk> - 2024-07-02 22:30 +0200
    Re: timeout for iptables Jeff Peng <jeff@simplemail.co.in> - 2024-07-03 05:40 +0200

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