[lug] RH8 iptables

John Hernandez John.Hernandez at noaa.gov
Thu Nov 14 15:07:53 MST 2002


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Nobuki Matsui wrote:

| It refuses connection. Maybe it
| is something to do with sendmail.mc/sendmail.cf.

Ah, in this case make sure you have a tcp listener on port 25 (and NOT
just on the loopback address).  'lsof -i :25' should yield something like:

COMMAND  PID USER   FD   TYPE DEVICE SIZE NODE NAME
sendmail 658 root    4u  IPv4   1367       TCP *:smtp (LISTEN)

Note the *:smtp result means "port 25 on every interface".

- --

~ |  John Hernandez - NOAA Boulder NOC - 303-497-6392
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