data

This tutorial describes how to rescue data from a single hard disk that was part of a LVM2 RAID1 setup. Why is it so problematic to recover the data? Every single hard disk that formerly was a part of a LVM RAID1 setup contains all data that was stored in the RAID, but the hard disk cannot simply be mounted. First, a RAID setup must be configured for the partition(s) and then LVM must be set up to use this (these) RAID partition(s) before you will be able to mount it. I will use the Knoppix Linux LiveCD to do the data recovery.

This tutorial shows how you can create backups of LVM partitions with an LVM feature called LVM snapshots. An LVM snapshot is an exact copy of an LVM partition that has all the data from the LVM volume from the time the snapshot was created. The big advantage of LVM snapshots is that you do not have to worry about open files and database connections, and you do not have to interrupt/halt services on the live partition because a snapshot is usually created in fractions of a second, so your users will not notice any disruption, and your snapshot holds consistent data.

Today security is one of the key aspects in our daily life - sometimes conscious, sometimes unconscious. Security has many aspects and one of them is computer security or security of your or your business' computer data. In this tutorial I will show how to encrypt a whole disk drive using (X)Ubuntu Feisty, dm-crypt, and LUKS. The article also contains some legal considerations.

Migrating user accounts is not an easy task especially if you are a new admin. You need to make sure that file ownership, and password and group membership remains the same.

The article does a good job of explaining the steps required to migrate from old Linux/UNIX server to news fresh installation. It's a short and sweet tutorial and worth a read, especially for new admins to handle rescuing a dying server job.

You can migrate users from old Linux server to new Linux sever with standard commands such as tar, awk, scp and others. This is also useful if you are using old Linux distributio

Backing up critical files is like exercising: everyone knows they should do it, but most people don't do it enough. A remedy for the files is automated online backup; as far as I know, there is no automated online remedy for staying in shape.

Automated online backup programs require only an Internet connection, a small software program, and a few minutes of your time. To perform a backup, you simply install the software on every computer containing data you want to back up; set up a backup schedule; and identify the files and folders to be copied. The software then sends copies of the files