topic Re: Need to disable sendmail in Operating System - Linux

Need to disable sendmail

KPS — Mon, 13 Feb 2006 14:27:42 GMT

I'm trying to configure my RHES 3.0 Linux System to have the sendmail daemon disabled on reboot and point it to our Mail Relay server in /etc/mail/sendmail.cf. What files do I want to target to prevent the sendmail daemon from starting up?

Could someone help me out with what I want to do for this?

Re: Need to disable sendmail

Jeff_Traigle — Mon, 13 Feb 2006 14:45:49 GMT

I assume RH still uses chkconfig... see the man page for options.

To see which run states sendmail is enabled, run:

chkconfig --list sendmail

Then to disable it in the run states it's enabled for:

chkconfig --level 345 sendmail off

(Replacing the 345 with the list of run state numbers reported on your system.)

Re: Need to disable sendmail

Ivan Ferreira — Mon, 13 Feb 2006 15:07:03 GMT

To disable sendmail use:

service sendmail stop
chkconfig sendmail off

By default, the sendmail server listens only in the loopback interface, so probably there is no need to completly disable the service.

If you shut down sendmail, and you try to send a message, you will get "Connection Refused". So, your Mail Relay server configuration won't work.

Re: Need to disable sendmail

Steven E. Protter — Mon, 13 Feb 2006 15:12:17 GMT

Shalom KPS,

All disabling sendmail from starting at boot will do is prevent the collection of inbound mail. This also prevents the manipulation of sendmail to send outbound mail, which is a good thing if your server is exposed to the Internet.

The excellent, solution quality posts above (hint, hint) will permit your server to send outbound mail messages as expected.

SEP

Re: Need to disable sendmail

KPS — Mon, 13 Feb 2006 15:26:12 GMT

Thanks everyone for your help