My personal view on things
Switching mailserver with lots of active users isn't an easy task. First you need to copy the mails to the new server and then get all the users to change mailserver settings at the same time to switch to the new server.
Cristian Livadaru
Change SSH client settings to enable SSH logins to older SSH servers or Mikrotik routers
Cristian Livadaru
Adding new disks to a LSI controller, creating a new VD and extending an existing LVM volume group
Cristian Livadaru
Having to move ~ 180 Mail accounts from an older IMAP server to Zimbra (open source version) I though I would document the process if anyone else finds themself in this situation.
Cristian Livadaru
How to connect to a server behind a firewall through a SSH tunnel
Cristian Livadaru
So you have backups in place but forgot to install a mysql backup? Don't panic, it's not the end of the world, except if you excluded the sql directory from your file backup, then go ahead an panic.
Cristian Livadaru