How to change user password expiry date to never expiry in Linux ?
Today we will look at an interesting topic to know how to set user password to never expire in Linux. 1. Check current password expiry [root@ngelinux etc]# chage -l saket...
Tag: unix
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LVM Solutions: How to change a faulty hard drive in Redhat/Centos Linux on production server ?
Today we will look at an interesting article how to change a faulty drive on our Linux server deployed in production. There are two approaches to achieve this: First Approach...
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How to write random or zero characters to a device in Linux ?
In this post we will look at an interesting feature of linux to write zeros or random characters to any device in Linux. One old way is to use dd...
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How to delete an array & its content in HPSSACLI or HP Smart Storage interface ?
We have seen how to create array in HPSSACLi earlier. Today we will look how to delete an array or logical drive in HP Smart Storage Admin CLI. Lets have...
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How to add Yubikey to ssh agent in Linux or Mac OS ?
Today we will look at a small tip, how to add YUBIKEY to our ssh-agent in Linux so that it doesn’t ask for password every time and authenticate the user...
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How to work on multiple servers together in a single time ?
Today we will introduce you to a very useful tip to perform server operations on multiple servers together. For this we will use a a application called csshx shared by...
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systemd limit directives: Set ulimit in RHEL7 or CentOS 7
1. Resource limit directives, their equivalent ulimit shell commands and the unit used Directive ulimit equivalent Unit LimitCPU= ulimit -t Seconds LimitFSIZE= ulimit -f Bytes LimitDATA= ulimit -d Bytes LimitSTACK=...
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How to reduce XFS filesystem on Redhat Enterprise Linux or CentOS ?
XFS filesystem is the default filesystem that comes with RHEL 7, and is considered as highly scalable and high performance filesystem. Ideally XFS filesystem can only be increased in size...
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How to view last users’ login history in Linux ?
Today we will see how to view user login history in linux. For this, we will use “last” command which gives login history for any specific username mentioned. If we...
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Meaning of the value stored in /proc/sys/kernel/panic file ?
Today we will look at an interesting topic to understand the meaning of value stored in /proc/sys/kernel/panic file. I. File Path /proc/sys/kernel/panic II. Meaning The value stored in this file...