I have encountered several methods of doing stateless RedHat Linux systems. Some of them are over-sophisticated, and it doesn’t work. Some of them are too old, and you either have to fix half the scripts, or give up (which I did, BTW), and after long period of attempts, I have found my simple-yet-working-well-enough solution. It…
Putty has announced that they will not allow automatic import of host key. You should press the damn ‘y’ yourself, or else, you will fail. A quote from their FAQ says: “A.2.9 Is there an option to turn off the annoying host key prompts? No, there isn’t. And there won’t be. Even if you write…
Assuming your storage is capable of replication, a bunch of VMs could be happily replicated to an alternate location, where you can start them on will (and on crisis, most likely). This procedure, in theory, is rather simple. I have discovered that it is less so, especially if your system goes into testing once a…
Oracle VM, out of the box, does not allow network bonds. An excellent guide on how to enable bonding which I have partially followed, has convinced me that changing the relevant scripts would be better. That I have done, and reported in this wiki post. To sum things up – configure bonding/VLAN tagging as you…
XenServer is a wonderful tool. One of the better parts of it is its powerful scripting language, powered by the ‘xe’ command. In order to capture a mass of snapshots, you can either do it manually from the GUI, or scripted. The script supplied below will include shell functions to capture Quiesce snapshots, and it…
I have a nice SCSI tape connected to a single server. This allows for on-demand backups, with the hope (and seldom, with the established knowledge) that I can recover the data I have there. Old computers, decommissioned computers and systems I wish to erase and reuse are seldom backed-up, just because of the effort in…
