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UNIX Date Command Examples

How do I view and set date under UNIX operating systems?The date command under UNIX display date. It is also used to set date...

Display Hard Disk Specs and Details on Linux

Linux comes with various commands to find out information about your hard drive. I recommend hdparm command which provides a command line interface to...

HowTo Run a Script In Linux

How do I run a Linux shell script? How can I run a script in Linux?By default script will not run. You need to...

11 useful commands for Linux/Unix administrators

Command line is more powerful because you can do  lot with them,  you can tell your computer exactly what you want and get the appropriate answer,...

Avoiding CPU Speed Scaling – Running CPU At Full Speed

If you have a server on collocation with the super-fast CPU, that doesn't mean that you get it running at full power.Here is a...

How to install cron (crond, crontab) in CentOS

Cron is a daemon that can be used to schedule the execution of recurring tasks according to a combination of the time, day of...

Patch and Protect Linux Kernel Zero Day Vulnerability CVE-2016-0728 [ Jan/19/2016...

very serious security problem has been found in the Linux kernel. A 0-day local privilege escalation vulnerability has existed since 2012. This bug affects...

How to install Nagios on CentOS 5 or 6

IntroductionThis guide is intended to provide you with simple instructions on how to install Nagios from source (code) on CentOS and have it monitoring...

Enabling SNMP On CentOS / RHEL

Setting up SNMP (Simple Network Management Protocol) on a CentOS machine is a very quick and easy process. First we will install SNMP itself by...

Linux: Check Ram Speed and Type

How do I check RAM speed and type (line DDR or DDR2) without opening my computer? I need to purchase RAM and I need...