Re: ipchains-question about blocking services
Hello,
albi wrote:
>
> Hello,
>
> I'm trying to help to setup a simple firewall for a box which serves
> internet for a small office, the box only needs to give access from the
> outside for ssh and smtp, samba should be blocked, and apart from that
> people should of course be able to use the internet for browsing.
Are you using Masquerading to access internet from your intranet? Since
it is a "small office", I guess the answer is yes. In this case, you
cannot
access you internal boxes from internet. You can try Port Forwarding but
I
am not sure it works and this will be more tricky to configure than
ipchains.
If you DO have real internet address, check the routing rules.
> Can someone point me to a simple ipchains-setup which just does
> block "everything" except ssh and smtp ?
Did you check the ipchains HowTo? I think you could find what you want.
Michel
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