May 16, 2020

How to create/remove the disk from the array

Mdadm is the modern tool most Linux distributions use these days to manage software RAID arrays; in the past raidtools was the tool we have used […]
July 2, 2019

OVH server not booting with centos7.6 kernel

One of our client was facing issue with OVH kernel. After rebooting the server it’s not coming up with normal kernel. I have checked the server […]
June 8, 2019

Applying Kernel Patch Without Rebooting

As a System Administrator, server uptime has much importance. The servers must be running as long as possible. While keeping this server uptime consistent, a System […]
May 26, 2019

How to install webmin on centos 6

Webmin is a web-based graphical tool for unix . It is used to manage services like User management, Disk managemet, Network, Iptables ( Firewall ), Cron, Apache, […]
May 26, 2019

How to Install svn server on centos 6

SVN – Apache subversion SVN – Subversion is a versioning and revision control system used by developers to track and keep up earlier versions of their […]
May 19, 2019

command to activate VG on LVM?

When you create a volume group, by default, it is activated. Sometimes you may need to activate it manually to make the kernel aware of volume […]
May 12, 2019

Limit download rate for yum

yum (RHEL/CentOs/SL/etc) has an option which allows you to limit the download rate/amount of bandwidth used to download packages. Here’s how you do it: Edit the /etc/yum.conf file and […]
May 12, 2019

Centos/RHEL not booting. Only shows GRUB _

When you see the following prompt with a blinking cursor instead of your RHEL 5 (Or CentOS/Scientific Linux v5 obviously) server booting, you will have in […]
May 12, 2019

Execute command via SSH on remote box and output on local machine.

How to execute command via SSH on remote machine and get output on local machine console. ## SYNTAX ssh [user]@[remote host] [command]   ## EXAMPLE ssh […]