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Re: Help Needed: My RHEL5 box suddenly stopped accepting e-mails



Hi Bohdan,

Thanks for your reply.
Please see below for my comments.


On Sat, May 7, 2011 at 1:27 PM, Bohdan Sydor <bohdan harazd net> wrote:

> On 05/07/2011 10:09 PM, Mun wrote:
>
> > I get "connection lost" or "Connection timed out"; depending on the
> computer
> > I use to run telnet.
> > The "connection lost" is what my Windows XP box returned; and the
> > "Connection timed out" is what
> > another Linux box returned.
>
> Please log in as root and run the following commands:
>
> service sendmail status
>

sendmail (pid 18176) is running...


>
> chckconfig --list sendmail
>

sendmail 0:off 1:off 2:on 3:on 4:on 5:on 6:off


> netstat -ntlp | grep :25
>

tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 18176/sendmail: acc


>
> iptables-save
>
> grep -v '^#' /etc/hosts.{allow,deny}
>

/etc/hosts.deny:


>
> We'll be able to see which process is listening on smtp port and if it's
> not being blocked by either the packet filter, nor tcp_wrappers.
>

Does everything above look okay?

Regards,

-- 
Mun



>
> --
> regards
>
> Bohdan Sydor
> www.sydor.net
>
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