How to Fix CentrifyDC is in disconnected mode
Centrify is a single sign on solution for Linux, if CentrifyDC is disconnected and cache is flushed you will no longer be able to login.
Confirm that services are running
If any of the services is off start it by using '/etc/init.d/centrifydc restart'
Check CentrifyDC Status Command
Local host name: servername
Joined to domain: domain.name
Joined as: hostname.domain
Pre-win2K name: oldername
Current DC: dc
Preferred site: info
CentrifyDC mode: disconnected
Licensed Features: Enabled
Above example shows that Centrify is disconnected, be sure not to flush or delete cache using 'adflush'
Check AD Connectivity
Output should show 'good' in front of the protocols.
Try to ping the server inside 'Joined to domain:' in adinfo output to be sure that it's replying and you can reach it.
Debug CentrifyDC Log
First i will enable debug and log mode
Disable back debug
Now you can trace the problem by checking