Authentification issue

[Gilles Foucault]

Hello,

My cyrus imap server have some troubles with authentification.

This problem occured recently, altough cyrus worked like a charm for
several months.

Here follows few lines of the auth.log file :

Sep 26 18:37:25 weg38-2-82-233-114-223 cyrus/imapd[12292]: can't
access srvtab file /etc/srvtab: No such file or directory
Sep 26 18:37:25 weg38-2-82-233-114-223 cyrus/imapd[12292]: server
add_plugin entry_point error generic failure
Sep 26 18:37:25 weg38-2-82-233-114-223 cyrus/imapd[12292]:
_sasl_plugin_load failed on sasl_server_plug_init for plugin:
kerberos4
Sep 26 18:37:25 weg38-2-82-233-114-223 saslauthd[8220]: do_auth
 : auth failure: [user=gilles] [service=imap] [realm=] [mech=sasldb]
[reason=Unknown]
Sep 26 18:37:25 weg38-2-82-233-114-223 cyrus/imapd[12292]: Password
verification failed
Sep 26 18:37:28 weg38-2-82-233-114-223 saslauthd[8220]: do_auth
 : auth failure: [user=gilles] [service=imap] [realm=] [mech=sasldb]
[reason=Unknown]

Have you any idea about the problem ?

Thanks in advance

Gilles