pop3 / imap authentication problem

[RolfJ]

Hi everyone,

I would like to use my Gentoo box as internet gateway for my home network . Incoming mail receives via fetchmail onto the server - no problem. When fetching that mail from a client from my Gentoo gateway (telnet gentoo 110) I get an -ERR bad login . The same is valid using the imap-Server. Here some details:
imap/pop Server: wu-imapd
System: Gentoo 1.4
Authentication: pam-module

$ cat /etc/pam.d/pop-3:
#%PAM-1.0

auth required /lib/security/pam_pwdb.so shadow
account required /lib/security/pam_pwdb.so
password required /lib/security/pam_cracklib.so
password required /lib/security/pam_pwdb.so nullok use_authtok md5 shadow
session required /lib/security/pam_pwdb.so

$ cat /etc/xinetd.d/pop:
service pop-3
{
log_on_success += USERID
log_on_failure += USERID
socket_type = stream
user = root
server = /usr/sbin/ipop3d
wait = no
only_from = 192.168.2.0
}

After logging in I get the following:
$ cat /var/log/mail.info
Oct 28 22:48:08 gentoo ipop3d[7143]: PAM unable to dlopen(/lib/security/pam_nologin.so)
Oct 28 22:48:08 gentoo ipop3d[7143]: PAM [dlerror: /lib/security/pam_nologin.so: undefined symbol: pam_get_item]
Oct 28 22:48:08 gentoo ipop3d[7143]: PAM adding faulty module: /lib/security/pam_nologin.so
Oct 28 22:48:08 gentoo ipop3d[7143]: PAM unable to dlopen(/lib/security/pam_stack.so)
Oct 28 22:48:08 gentoo ipop3d[7143]: PAM [dlerror: /lib/security/pam_stack.so: undefined symbol: _pam_make_env]
Oct 28 22:48:08 gentoo ipop3d[7143]: PAM adding faulty module: /lib/security/pam_stack.so
Oct 28 22:49:13 gentoo ipop3d[7143]: Logout user=rolf host=[192.168.2.5]

$ cat auth.log
Oct 28 22:48:01 gentoo xinetd[5476]: START: pop-3 pid=7143 from=192.168.2.5
Oct 28 22:48:08 gentoo ipop3d[7143]: Login failed user=rolf auth=rolf host=[192.168.2.5]

Any ideas on this problem? What does the pam-configuration has to look like?

Greetings

Rolf

[RolfJ]

Hi again,

OK, I've solved the problem. Looks like it was a buggy pam library. In /var/log/mail.info I saw the problems with the pam-library during authentication. I did an

1. emerge rsync
2. emerge unmerge pam
3. emerge unmerge uw-imap
4. rm /etc/pam.d/ipop*
5. rm /etc/xinetd.d/ipop*
6. rm /etc/xinetd.d/imap*
7. emerge pam
8. emerge uw-imap

After repeating step 2-8 a couple of times and installing teapop in between, it finally worked . The /etc/pam.d/ configuration-files now look completely different.

Greetings

Rolf

This procedure