I’m almost at the point of having a completely duplicated slave server. Currently mysql database replication is working. I have apache php5 and mysql fully working. The server synchronizes the apache root directory, with the server, every minute. Therefore for all practical purposes any file changes on the master are propogated to the slave. The mysql database is propogated in real time. I installed dovecot, sendmail, spamassassin, and clamav therefore the email environment is setup. I’m going to sync the entire /etc directory.
I’m stuck, for a little, on the users inboxes. I’m trying to rsync /var/mail but I think some permissions are missing. After I get the /var/mail directory to synchronize, as per crontab, the systems will be fully synchronized.
Now when server2 is backed up using vboxtool the main server will remain completely online! This will save approximately 5 minutes per day, therefore I will be saving 30.42 hours of downtime per year. By backing up the server as such I will be adding 30.42 hours of uptime; a rather big number.