On 12/28/2011 02:16 AM, mike lan wrote:
> Hello
>  I would like to setup shorewall for some ports only (i.e allow to surf
> the net http and https and access ftp only and nothing else )
> 
> I've used  the one interface firewall example  with a policy file :
> #SOURCE         DEST            POLICY          LOG LEVEL       LIMIT:BURST
> $FW             net             ACCEPT          info
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> net             all             DROP            info
> # The FOLLOWING POLICY MUST BE LAST
> all             all             REJECT          info
> 
> 
> and on the rules file :
> ACCEPT          $FW             net             icmp
> ACCEPT          $FW             net             tcp     http,https,ftp
> 
> 
> restarted shorewall
> But I've noticed that I can still send packets on other ports that those
> specified on the rules. ex : running transmission for instance
> 
> thanks taking time to reply
> 

The highlighted line there sets the default policy for outgoing traffic
to ACCEPT.  When your ACCEPT rules aren't matched, outgoing traffic uses
that default.  Change that ACCEPT to a REJECT or maybe a DROP if you
prefer, and it should work as expected.

-- 
J. Randall Owens | http://www.ghiapet.net/
ProofReading Markup Language | http://www.prml.org/


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