[K12OSN] OT? Fixing an Open Proxy
Sudev Barar
sudev at mantraonline.com
Sat Jun 4 07:08:31 UTC 2005
On Sat, 2005-06-04 at 15:11 +1000, Debbie Schiel wrote:
> They say I have to fix my open proxy, and provide information that goes way over
> my head. Can anyone provide a simple HOWTO for fixing an open proxy?
I hope you are meaning mail relay.
Edit /etc/mail/access and add only those IP address from where you want
to allow relaying. The table at my location is:
localhost.localdomain RELAY
localhost RELAY
127.0.0.1 RELAY
192.168.2 RELAY
Further your can also add local domain names in the
file /etc/mail/local-host-names to restrict domains.
Thereafter restart sendmail service
On your router you can also block port 25 if no one from outside is to
do mail relay (e.g. from homes)
HTH
--
Sudev Barar
Learning Linux
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