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Backup

Stop the Men & Mice Central service, using the init script or use the appropriate systemd, service command depending on your Linux distribution, examples:

 
sudo /etc/init.d/mmcentral stop

(or e.g. RedHat6)

sudo service mmcentral stop

(or e.g. RedHat7)

sudo systemctl stop mmcentral

 
Back up the directory
/var/mmsuite/mmcentral
in version 5.6 and above,
/var/qdns/qdnscentral 
in 5.1. For example, to create an archive in your home folder on the server:
 
In 5.6 and above
 
sudo tar czC /var/mmsuite -f ~/central.tgz mmcentral
 
In 5.1
 
sudo tar czC /var/qdns -f ~/central.tgz qdnscentral
Then start the service again:
 
sudo /etc/init.d/mmcentral start

Restoring

 
Stop the service as outlined above. Then restore the data directory. If you followed the instructions above exactly, you can use this shell command:
 
In 5.6 and above
 
sudo tar xzC /var/mmsuite -f ~/central.tgz
In 5.1
 
sudo tar xzC /var/qdns -f ~/central.tgz
Then start up the service again, as outlined in the Backing Up section above.