I observed that MacOS X 10.6, if machine is added to an Active Directory and set to authenticate over LDAP to the Active Directory server requests a Kerberos TGT as expected at each user login.
However, this TGT has a lifetime on the Active Directory and should be refreshed before the time expires. Windows machines does this automatically about 1 hour before expiration, but the MACs in our network does not do this. So, when a MacOS reaches the end of the TGT lifetime, nothing happens and access to services is limited accordingly by the Active Directory server.
I am looking for a way to configure the MACs to do a TGT refresh without user intervention. Preferably the solution should be a setting somewhere or a cron job to be run, and if that's impossible what software should I install to automatically refresh the TGT?
UPDATE: I found out that
kinit -R or
kinit -B should refresh the TGT. When I run it, it seems to run OK, klist shows updated times ... but I see this error in the logs:
(com.apple.Kerberos.renew.plist): Exited with exit code: 1 and of course nothing happens on the Active Directory server.