A collection of system administration hints and tips, tricks and articles for the Linux operating system in all its variants.

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LVM Logical Volumes

Updated   Read time 3 min(s) 1 sec   (3033 visits).

The use of logical volumes is similar to the use of partitions and is accomplished with the same standard commands (mkfs, mount, fsck, df, ...)

LVM Volume Groups

Updated   Read time 2 min(s) 52 sec(s)   (2523 visits).

A volume group (vg) is an abstraction layer between block devices and logical volumes. The commands used to manage a volume group start with vg

LVM Physical Volumes

Updated   Read time 3 min(s) 7 sec(s)   (2398 visits).

A physical volume (pv) is any block device (a disk, a partition, a RAID device, an iSCSI device, etc.)

Private and public key pairs for SSH

Published   Read time 3 min(s) 2 sec(s)   (1696 visits).

SSH has a key management capacity and related agents.When configured with public key authentication, your key proves your identity to remote SSH hosts

SSH configuration and security best practices

Updated   Read time 2 min(s) 18 sec(s)   (2440 visits).

Here is a list of processes and configurations that you can use to tighten and enhance SSH security with regard to remote host access

How to disable Unity overlay scrollbars in Ubuntu

Updated   Read time 1 min 54 sec(s)   (2373 visits).

How to easily restore the classing scroll bar (disable overlay scrolling) or to re-enable it if disabled under Ubuntu 14.04 and 16.04 LTS

SSH related commands

Updated   Read time 1 min 14 sec(s)   (1340 visits).

A short article which provides a brief description for ssh related commands