POP3 login does not work after backup restore

S

sych

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Jul 6, 2008
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Just transferred a bunch of websites from one server to another using "Admin Backup/Restore".
After transferring DNS zone to IP of the new server, I see the following in /var/log/maillog :

Code: 
Oct  4 17:55:40 virtual dovecot[11192]: auth-worker(18457): shadow(*@*.*,209.85.212.131): unknown user
Oct  4 17:55:40 virtual dovecot[11192]: auth-worker(18457): shadow(*@*.*,209.85.212.131): unknown user
Oct  4 17:55:40 virtual dovecot[11192]: pop3-login: Login: user=<*@*.*>, method=PLAIN, rip=209.85.212.131, lip=80.179.151.76, mpid=18458, session=<TNUHC5oE+QDRVdSD>
Oct  4 17:55:40 virtual dovecot[11192]: pop3(*@*.*): Disconnected: Logged out top=0/0, retr=0/0, del=0/922, size=33872362, bytes=24/30126

Instead of *@*.* - all users who have email boxes. This appears constantly, I guess, because they have automatic checking for e-mail

This worked totally fine on the old server. Older Server was FreeBSD 6 (DA version 1.40.3), the new one is CentOS 6 (DA version 1.46.2).

I have compared /etc/virtual/*/passwd - they are identical except that FreeBSD had /sbin/nologin, and CenOS has /bin/false as shells.
 
This is only a guess, because I haven't ever used FreeBSD and haven't used any flavor of BSD since 2001 (when I used BSD-OS).

I'm guessing that the two sysems password coding are incompatible. If so you may need to find oout what BSD used to encode passwords, and see if that can be added to CentOS 6.

Or of course modify all the passwords with the same ones (likely you'd need to have your users do that).

But I'm not sure because I'd think if that were the case the problem would exist wth user logins as well.

Jeff
 
Hello,

sych said:
Just transferred a bunch of websites from one server to another using "Admin Backup/Restore".
After transferring DNS zone to IP of the new server, I see the following in /var/log/maillog :
Click to expand...


That's normal and there is nothing to worry about. They according to the logs logged to your POP3 server, and disconnected.
Regarding the "unknown user" please check this article: http://help.directadmin.com/item.php?id=175 (Why do I get shadow([email protected],127.0.0.1): unknown user when I can login just fine?)


If you can not loggin into any email account, then you need to change/reset its password.
 
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