051cd4b Try to renew Kerberos credentials

5 files Authored by sbose 14 years ago, Committed by sgallagh 14 years ago,
    Try to renew Kerberos credentials
    
    When using GSSAPI we need a valid service ticket to talk to the LDAP
    server. If the ticket is expired the LDAP client returns with 'Can't
    contact LDAP server'. Currently we set the backend offline if this error
    occurs although the server is still available. This patch checks if the
    TGT is expired and tries to renew the credentials before going offline.