If you are applying new rules via a script, you need to 
first flush all existing chains, then delete the additional 
chains,
otherwise you will try to create a chain that already 
exists...
>From the turorial at 
http://www.netfilter.org/documentation/tutorials/blueflux/
 #
 # flush all the rules in the filter and nat tables.
 #
 $IPTABLES -F
 $IPTABLES -t nat -F
 $IPTABLES -t mangle -F
 #
 # erase all chains that's not default in filter and nat 
table.
 #
 $IPTABLES -X
 $IPTABLES -t nat -X
 $IPTABLES -t mangle -X

Regards,
Peter

----------  Forwarded Message  ----------

Subject: Iptables question.
Date: Tue, 17 Sep 2002 15:01:42 +0200 (CEST)
From: linux power <[EMAIL PROTECTED]>
To: redhat mail list <[EMAIL PROTECTED]>

When I apply new rules to my iptables I get this.

Chain already excist.

And I cant apply any new rules although I can flush the
 rules, but linux doesent use them.

The chain message was not in the beginning when I installed
 iptables, but occured a couple of days ago.

Is there any hacker the had comes in through port 631 (the
 cups port) which is open, and have made it that way that

I cant change the chain rules?

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When I apply new rules to my iptables I get this.

Chain already excist.

And I cant apply any new rules although I can flush the rules, but linux doesent use them.

The chain message was not in the beginning when I installed iptables, but occured a couple of days ago.

Is there any hacker the had comes in through port 631 (the cups port) which is open, and have made it that way that

I cant change the chain rules?

Prøv betaversjonen av den nye Yahoo! Mail
Nytt design, enklere å bruke, alltid tilgang til Adressebok, Kalender og Notisbok

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