[Dovecot] chdir() on NFS

[Christian Andersen]

Hi,
I'm having problems accessing home directories though NFS. This setup uses
LDAP and Kerberos. Users defined on the local host work fine. This is what
dovecot writes in the logs while trying to log in as the user johndoe:

----
Mar 19 14:10:54 jack dovecot-auth: nss_ldap: reconnecting to LDAP server...
Mar 19 14:10:54 jack dovecot-auth: nss_ldap: reconnected to LDAP server
after 1 attempt(s)
Mar 19 14:10:54 jack imap-login: Login: johndoe [10.0.0.30]
Mar 19 14:10:54 jack dovecot: chdir(/home/johndoe) failed: Permission denied
Mar 19 14:10:54 jack dovecot: child 3525 (imap) returned error 89
----

The authentication is OK, but dovecot fails to get access to the home
directory. What username does dovecot try to chdir() as?

If I 'su' from to that user I have access to /home/johndoe, and a quick
test with Courier IMAP worked fine. Postfix has no problem delivering mail
in the users maildir using procmail.

Some relevant config options:

default_mail_env = maildir:~/mail:INDEX=/var/indexes/%n
auth_userdb = passwd
auth_passdb = pam
auth_user = root


-- 
Christian Andersen
<http://phuzz.org>