Change IP address of the DC
This HowTo describes a way to change the IP address of your DC.
Changing the IP address of your DC can cause unexprected side effects! Always make sure you have a recoverable backup! And of course do intensive testing!
Notice: This HowTo was tested only in a single DC environment!
Make sure, that no clients are connected to the server, while you do the changes. They'll be disconnected and won't reconnect until the next reboot!
# ifconfig eth0:0 10.99.0.200 up
interfaces = lo eth0 eth0:0
This parameter is not used per default. If you made changes to your smb.conf, restart Samba!
# samba_dnsupdate --verbose
Failed to find matching DNS entry A samdom.example.com 10.12.2.71 Failed to find matching DNS entry A dc1.samdom.example.com 10.12.2.71 Failed to find matching DNS entry A gc._msdcs.samdom.example.com 10.12.2.71
Remember these records. We'll change them in the next step.
# ifconfig eth0:0 down
Notice: You have to restart all Windows clients, that where up during the IP change, because the OS had cached the old values.! Otherwise these clients won't connect to the new IP.