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

Latest posts

RPM cheat sheet

1 min 29 sec(s)    3180 visits.

RPM is a command line package management utility used for installing, uninstalling, updating, querying and verifying software packages.

Installing PHP GeoIP on Ubuntu

1 min 20 sec(s)    2845 visits.

A simple article providing the steps necessary to get GeoIP working with PHP on Ubuntu systems.

LVM Logical Volumes

3 min(s) 1 sec    3323 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

2 min(s) 52 sec(s)    2804 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

3 min(s) 7 sec(s)    2757 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

3 min(s) 2 sec(s)    1961 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

2 min(s) 18 sec(s)    2738 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