Also, I believe that sendmail's default configuration in RHEL 4 is to only listen to localhost anyway. This means that even if it is running (with just default) outside users still won't connect to the smtp port, just localhost users. In addition, you can also fire up iptables to block port 25 as well, just to make sure. If you want email to flow from your machine, though, sendmail (or postfix) does need to be running. Wayner >>> Job Cacka <job@xxxxxxxxxxxxxxxxx> 02/08/06 8:33 am >>> Because sendmail is disabled, and no other mailer is enabled, this is why you are not getting the root mail. What we do to protect sendmail is we block port 25 access to all servers except for the email servers. This means that the port is not available on that machine except locally, in our own WAN. We use an external hardware device to accomplish this, which is the only way to create a true firewall. Obviously keeping sendmail off is the best security, but then so is using scissors on your CAT 5 connections. I would guess that if you are keeping sendmail up2date with the RHN then you have nothing to worry about. Unless you are NSA, FBI, CIA, some company with secrets worth knowing, or good bandwidth that hackers/spammers might want to exploit. There are other mail servers in RHES 4. Dovecot comes to mind and I think that Courier is also available. Job Cacka -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx]On Behalf Of j_70@xxxxxxxxxxx Sent: Wednesday, February 08, 2006 8:13 AM To: redhat-list@xxxxxxxxxx Subject: no mail from / for root I have an RHES4 mahine which does not send any mail to or from root. For example, the result of a cron job is not sent. I thought this service was enabled by default. If not, which services is it. I have read that sendmail has some security issues and since this machine will not be mailing the outside world, I did not want to start or configure it. Not sure where to start looking. TIA. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
