On Saturday 28 February 2009 23:45, 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.
Redhart in their great wisdom decided to make themselve different. As a way of making it's customers dependant on them. This is simple to fix. Edit the rule set with your favoirate editor and do the following: Remove all the lines with -j RH-Firewall-1-INPUT. Replace all the lines with RH-Firewall-1-INPUT with INPUT The original looks something like this: # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT -A RH-Firewall-1-INPUT -p 50 -j ACCEPT -A RH-Firewall-1-INPUT -p 51 -j ACCEPT -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT The new should look something like this: # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -i lo -j ACCEPT -A INPUT -p icmp --icmp-type any -j ACCEPT -A INPUT -p 50 -j ACCEPT -A INPUT -p 51 -j ACCEPT -A INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT -A INPUT -p udp -m udp --dport 631 -j ACCEPT -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited COMMIT Fail2Ban should work now. -- Regards Robert Linux User #296285 http://counter.li.org _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
