On 3/13/07, siva kumar <sivasunil1000@xxxxxxxxx> wrote:
Hi, Thanks for replying, yes, i am using this linux server as gateway server for lan. We aren't having any SMTP server. Can you please tell me how can i check the open relays. and how can i block those relays. Please help me Thanks & Regards Siva Kumar
Since this linux system is acting as a gateway for your LAN, you can start by making a firewall on this system using iptables. Allow only selective outgoing traffic as per your requirement. Your problem might be because of some worm infected system inside the LAN. You can also make sure that no MTA (sendmail / postfix / exim) is running on the gateway or listening on the external interface. -- Manish Kathuria Tux Technologies http://www.tuxtechnologies.co.in/ -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
