wtf is on port 25? i.e postfix problems

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

Im trying to follow the excellent gentoo faq on how to set up postfix with ssl to handle multiple domains for multiple users. all seemed to be going well, until:

the docs want me to telnet to localhost 25 and make sure the new auth stuff is working after postfix reload. instead of getting any text, something is answering the connection but never responding. example:

arioch root # telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
HELO edgeoftheworld.com
EHLO
asd
as
d

as

asd
as

^]
telnet> quit
Connection closed.

1) how can i see what program is answering on port 25??

2) any ideas what might be wrong with postfix, assuming it is postfix answering and then not doing anything?

i was expecting:

Code Listing 6.2: Verifying sasl and tls support

# telnet localhost 25

Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 mail.domain.com ESMTP Postfix
EHLO domain.com
250-mail.domain.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-XVERP
250 8BITMIME
^]
telnet> quit

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

oh i forgot to mention - i did an emerge -Cp before i started on sendmail, qmail, and exim to make sure they were not installed, and none were.

matt

verbatim · Apprentice Joined: 13 Mar 2003 Posts: 223

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

what the heck is 'master'?

arioch root # netstat -lp --tcp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 *:imaps *:* LISTEN 22335/couriertcpd
tcp 0 0 *:pop3s *:* LISTEN 22457/couriertcpd
tcp 0 0 localhost:mysql *:* LISTEN 9208/mysqld
tcp 0 0 *:netbios-ssn *:* LISTEN 5719/smbd
tcp 0 0 *:pop-3 *:* LISTEN 22396/couriertcpd
tcp 0 0 *:imap2 *:* LISTEN 22274/couriertcpd
tcp 0 0 *:www *:* LISTEN 5389/apache2
tcp 0 0 *:ssh *:* LISTEN 5375/sshd
tcp 0 0 *:631 *:* LISTEN 5437/cupsd
tcp 0 0 *:smtp *:* LISTEN 10433/master
tcp 0 0 *:microsoft-ds *:* LISTEN 5719/smbd

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

ok i did some googl0ring and i see that 'master' i the correct postfix daemon to be listening.

any ideas why it isnt responding with anything usefur or interesting when i telnet to it?

DaveArb · Guru Joined: 29 Apr 2004 Posts: 510 Location: Texas, USA

How is your DNS? I don't know Postfix, but Sendmail will give a long pause before announcing if DNS isn't resolving. I believe it is doing an rDNS on your IP.

If it's a DNS error, it should proceed after a half minute or so.

Dave

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

wow great idea but i let it go for 15 min and still no response =(

Janne Pikkarainen · Posted: Wed Jun 09, 2004 7:08 pm Post subject:

I think you've been hit by a some obscure thing in Postfix ebuild. I complained about it in bugs.gentoo.org a while ago but haven't heard about it in long time.

Anyway, create a directory called /var/spool/postfix/etc and copy the following files from your /etc directory to it:

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

hmm well that dir was missing, so i copied it over. i did a postfix reload and no effect. for grins, i did a stop then a start. i got all kinds of warnings that etc wasnt owned by root - i had chown'd it to postfix. of course my first concern was why postfix reload hadnt given me the same warnings...

anyways, i chown'd it back to root and did a stop and a start, no effect =(

thanks for trying! im stumped

Janne Pikkarainen · Posted: Thu Jun 10, 2004 5:13 am Post subject:

How about system logs, do they show any errors related to postfix?
_________________
Yes, I'm the man. Now it's your turn to decide if I meant "Yes, I'm the male." or "Yes, I am the Unix Manual Page.".

splooge · l33t Joined: 30 Aug 2002 Posts: 636

This one simple!

You didn't run newaliases!
_________________
http://get.a.clue.de

nobspangle · Posted: Thu Jun 10, 2004 12:49 pm Post subject:

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

i had ran newaliases =(

arioch root # newaliases
arioch root # telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

(wait for eternity =( )

splooge · l33t Joined: 30 Aug 2002 Posts: 636

mmm hmm and what does it say in your logs?
_________________
http://get.a.clue.de

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

i see no postfix specific logs. i see no postfix entries in any general system logs

splooge · l33t Joined: 30 Aug 2002 Posts: 636

Run these commands, make sure they return favorable results eg: make sure they don't say (none)

#hostname
#domainname
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http://get.a.clue.de

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

arioch log # hostname
arioch
arioch log # domainname
edgeoftheworld.com

Souperman · Posted: Fri Jun 11, 2004 2:50 pm Post subject:

gedanken · Tux's lil' helper Joined: 22 Jul 2003 Posts: 90

yikes, i had been looking for /var/log/postfix or something in metalog, i just plain missed seeing the mail folder

Jun 11 11:18:03 [postfix/smtpd] fatal: parameter "smtpd_recipient_restrictions": specify at least one working instance of: check_relay_domains, reject_unauth_destination, reject, defer or defer_if_permit

GROAN, i looked in main.cf and saw i had spelled it reject_unath_destination and left out a u. sigh.

arioch postfix # vi main.cf
arioch postfix # postfix stop
postfix/postfix-script: stopping the Postfix mail system
arioch postfix # postfix start
postfix/postfix-script: starting the Postfix mail system
arioch postfix # telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 arioch.edgeoftheworld.com ESMTP Postfix
EHLO
501 Syntax: EHLO hostname
EHLO arioch
250-arioch.edgeoftheworld.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250 8BITMIME

THANKS!!!