id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
6856,"RDP auth ""forgets"" about LDAP server over time",Michael,,"Host: Fedora 12 x86_64 8 core machine

All VirtualBox guests are running in headless mode. I have RDP auth for all guests set to External. There is a LDAP server on another machine on the same network. It appears that over time the Headless instance forgets how to communicate to the LDAP server. The time it takes seems to be about 3 or 4 days. This has been a recurring problem for some time now, which I thought was attributed to network changes or package updates, but I know now that those cases are not true. I can perform ""getent passwd"" on LDAP users at all times with no error, so I know there is no connectivity problem at the host level.

If I immediately stop and then start a single broken guest (while others continue to run) that guest can now authenticate against LDAP. The other guests are still broken.

I have tried changing my /etc/ldap.conf values for a broken guest, but this does not help. The only known workaround is to stop and start the broken guest.

Default values in /etc/ldap.conf[[BR]]
uri ldap://server.local/ [[BR]]
ssl start_tls[[BR]]
pam_password md5[[BR]]

/var/log/messages[[BR]]
Jun  1 10:19:21 localhost VBoxHeadless: pam_ldap: ldap_starttls_s: Can't contact LDAP server


Other values in /etc/ldap.conf[[BR]]
uri ldaps://server.local/ [[BR]]
#ssl start_tls[[BR]]
pam_password md5[[BR]]

/var/log/messages[[BR]]
Jun  1 10:23:24 localhost VBoxHeadless: pam_ldap: ldap_simple_bind Can't contact LDAP server[[BR]]
Jun  1 10:23:24 localhost VBoxHeadless: pam_ldap: reconnecting to LDAP server...",defect,closed,RDP,VirtualBox 3.2.0,worksforme,,,other,Linux