port 143. can't telnet, service enabled, no iptables. help?

trossachs · 02-18-2004, 02:31 PM

Hey have just rebuilt my server with Gentoo which is just great. However, I am unable to log into the mail server. I am using uw-imap and have looked in all the usual places such as:

(1) etc/services
The entry's shown here are as they should be:

Code:

imap2           143/tcp                         # Interim Mail Access Proto v2
imap2           143/udp

(2) etc/xinetd.conf
This .conf file has all what it needs:

Code:

defaults
{
        only_from      = localhost
        instances      = 60
        log_type       = SYSLOG authpriv info
        log_on_success = HOST PID
        log_on_failure = HOST
        cps            = 25 30
        disable        = no
}

(3) etc/xinetd.d/imap2
... as does this one:

Code:

service imap2
{
        port                    = 143
        socket_type             = stream
        wait                    = no
        user                    = root
        server                  = /usr/sbin/imapd
        log_on_success          += DURATION USERID
        log_on_failure          += USERID
        disable                 = no
}

(4) netstat -lnt
Just checking to see if 143 was listening, but as you an see it is not:

Code:

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:139             0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:783           0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN

(5) telnet print
Can't telnet either which is obvious from the above:

Code:

gandalf etc # telnet localhost 143
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused

So after these five pointers, which I thought I would include, plus the fact that my firewall is turned off, could someone pls lend me their ears and suggestions? I would be most grateful!

thx. J

Linux_in_NH · 02-18-2004, 03:48 PM

Have you tried sending a HUP to xinetd?

trossachs · 02-18-2004, 04:01 PM

I dont understand. How would I go about that? thx

Linux_in_NH · 02-18-2004, 04:07 PM

kill -HUP `ps -aef|grep xinetd|grep -v grep|awk '{print $2}'`

That will look for the PID of the xinetd process and send it a HUP (HangUP) signal, which will cause it
to reload it's configuration file(s)

trossachs · 02-18-2004, 04:12 PM

But won't /etc/init.d/xinetd restart do the same thing?

linuxxed · 02-18-2004, 04:12 PM

By the looks of it your imapd daemon isn't starting. I can see that you have enabled the imap in /etc/xinetd/imap2 file.

Did you restart the xinetd service after changing the imap2 file.

$service xinetd restart

Check if the service is running or not by doing

$lsof -i:143

If it is up and you can't telnet the it could be your /etc/hosts.allow and /etc/hosts.deny

If the server is not coming up then check your logs /var/log/messages and post the error.

Linux_in_NH · 02-18-2004, 04:13 PM

sure... if you want to take the easy way out ;-)

trossachs · 02-18-2004, 04:19 PM

Quote:

sure... if you want to take the easy way out ;-)

What does that mean? I simply asked a question. For some reason my syslog-ng has not been printing out any further info as of Feb 14. It's a pain I know, but I don't know what else to do.

linuxxed · 02-18-2004, 04:27 PM

try starting the daemon on the command line and see what it says.

trossachs · 02-18-2004, 04:28 PM

There is no issue with the daemon, see below:

Code:

gandalf ipv4 # /etc/init.d/xinetd start
 * WARNING:  "xinetd" has already been started.

Linux_in_NH · 02-18-2004, 04:38 PM

Once again, my sense of humor gets lost in the translation.. oh well...
Yes, /etc/init.d/xinetd restart does the same thing (well, not 100% the same, but the end result is)

Is syslog running?

ps -aef|grep syslog

Having some log messages might help to see what is happening.

What happens if you try to star the imapd process by hand?

trossachs · 02-18-2004, 04:42 PM

Syslog is running:

Code:

gandalf ipv4 # ps -aef|grep syslog
root     25780     1  0 07:17 ?        00:00:00 /usr/sbin/syslog-ng

But I think there may be a prob with the way I have setup syslog-ng.conf, see below:

Code:

destination mail { file("/var/log/maillog"); };
filter f_mail { facility(mail); };
log { source(src); filter(f_mail); destination(mail); };

destination authlog { file("/var/log/auth.log"); };
destination syslog { file("/var/log/syslog"); };
destination cron { file("/var/log/cron.log"); };
destination daemon { file("/var/log/daemon.log"); };
destination kern { file("/var/log/kern.log"); };
destination lpr { file("/var/log/lpr.log"); };
destination user { file("/var/log/user.log"); };
destination uucp { file("/var/log/uucp.log"); };
destination ppp { file("/var/log/ppp.log"); };
destination messages { file("/var/log/messages"); };
destination console_all { file("/dev/console"); };

#filter f_mail { facility(mail) and not match (imapd); };
#log { source(src); filter(f_mail); destination(mail); };

options {
        long_hostnames(off);
        sync(0);

        # The default action of syslog-ng 1.6.0 is to log a STATS line
        # to the file every 10 minutes.  That's pretty ugly after a while.
        # Change it to every 12 hours so you get a nice daily update of
        # how many messages syslog-ng missed (0).
        stats(43200);
};

source src { unix-stream("/dev/log"); internal(); pipe("/proc/kmsg"); };

log { source(src); destination(messages); };
log { source(src); destination(syslog); };
#log { source(src); destination(console_all); };
~

linuxxed · 02-18-2004, 04:51 PM

what I meant was (if you forget your syslog for a mo)

1) Disable your imap2 in /etc/xinetd.d/imap2
2) Restart xinetd
3) Run imapd on commandline

$imapd

It should write something.

Linux_in_NH · 02-18-2004, 04:57 PM

Have you looked in /var/log/daemon.log for any errors relating to imapd?

trossachs · 02-18-2004, 05:05 PM

There is no imap2 in xinetd.d, shall I create one? Also, nothing written in the daemon.log, I have just created it!