Thanks also i found this editinig the : edit /etc/sysconfig/iptables is a
good way for solution
problem solved thanks for everybody's attention
2010/4/23 Niki Kovacs <contact at kikinovak.net>
>
> cahit Eyig?nl? a ?crit :
>
>> how could i add / remove iptable rules on cet os 5.4 final for tcp /
udp
>> base on ports
>>
>> If you don't want to mess with iptables, take a look at the
firewall
> configuration tool system-config-securitylevel-tui. I think there's a
> graphical app also, but I've never used it. If you only need to
open/close
> ports on a tcp/udp basis, this tool will do the job.
>
> Right now looking for an example. In my own documentation, I have some
> screenshots of the tool. Here, for example (second screenshot), opening
port
> 67 for UDP requests :
>
> http://www.microlinux.fr/doc_en_stock/dhcp.html
>
> Or here (first screenshot), opening port 53 for both TCP and UDP requests :
>
> http://www.microlinux.fr/doc_en_stock/dns.html
>
> If you want more complicated stuff, you'll have to dive into iptables,
> though.
>
> Cheers,
>
> Niki
>
>
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