[Sheflug] Re: Firewall Stuff

[Richard <nospam [at] sheflug.co.uk>]

Alex

Alex Hudson wrote:
 
> cat /etc/services | grep 'thing-to-search-for'
> 
> i.e., www, ftp, ssh, etc...
> 
> > ipchains -A input -s 0/0 3128 -j accept


I've been able to get the internal LAN to ping itself with the
firewall running and connected to my ISP.  Couldn't do that before. 
But, pinging my ISP reveals that there's nothing there.  Tried lots
of..... 

ipchains -A input -s 0/0 80 -j accept

also on ports 110, 25 and 21 which is ftp and still can't get through
to my ISP after that. Also tried port 53 in the hope that might work. 
Nothing.  If I change the bit at the top of the file to ACCEPT from
DENY it works fine but I can't see that the firewall will work in the
way that it should if I do that.

Thanks

-- 
Richard

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