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by admin 5 years ago

Linux History command with examples

To view the list of commands executed by the user. # history To view the total history size in the server # echo $HISTSIZE 1000 To modify the total history size in the server. for eg I’m going to set the history size to 1500 #...

by admin 5 years ago

SSH login without password in Linux

Normally, we will login to the remote server using user name and password at the time of authentication. But here, we can login to the remote server without knowing user name and password of the server using ssh keys. This will be helpful...

by admin 5 years ago

How to unregistered the server from the Red Hat Network

If the system is registered to Red Hat Satellite Manager run below commands # subscription-manager clean If the system is registered to Red Hat Network Classic method then remove or move the systemid file from /etc/sysconfig/rhn/systemid...

by admin 5 years ago

Useful Vim Commands

What is Vim ? Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems. Vim is often called a “programmer’s editor,”...

by admin 5 years ago

Find command with some examples

Find command is available by default in most of the Linux distros so you don’t need to install any packages to get this command. Find command is very useful to search it for a particular file based on various search criteria like...

by admin 5 years ago

How to encrypt and decrypt the file in Linux

Sometimes you may need to send a important files as a attachment thru emails. Better if the files was sent in encryption mode then unauthorized person can’t misuse the file. Now we will see here how to encrypt and decrypt the file...

by admin 5 years ago

CentOS 5.x

The CentOS Project is a community-driven free software effort focused on delivering a robust open source ecosystem. For users, we offer a consistent manageable platform that suits a wide variety of deployments. For open source communities,...

by admin 5 years ago

How to extend the LVM Partition / Resizing lvm partion

If required space is not available in the VG then request Vmware or SAN team for a new disk. To Extend the lvm partion, we need to have free space in volume group. This can be verified from the vgs command. # vgs VG   #PV #LV #SN Attr  ...