Devraj Mukherjee wrote:
> Hi all,
>
> I am trying to get fail2ban going on my server and its log message
> reports the following error
>
> 2009-02-16 17:42:05,339 ERROR: 'iptables -L INPUT | grep -q
> fail2ban-SSH' returned 256
> 2009-02-16 17:42:05,354 ERROR: 'iptables -D INPUT -p tcp --dport ssh
> -j fail2ban-SSH
>
> Is this because of the way the RedHat tool sets up the firewall?
>
> Thanks for any responses.
>
>
First, have you installed iptables, shorewall, and tcp-wrappers
installed?
Second, have you tried the failed grep expression, i.e., have
you tried
iptables -L INPUT | grep -q fail2ban-SSH
As to why this would fail, you need to ask on the fail2ban
mailing list since evidently this appears to be part of the
installation.
The iptables can be setup by anyone - RedHat simply provides
a default set of rules.
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