How to get the last field of a string using cut command in bash linux ?
Today we will see an interesting article how to get the last field of a string using cut command in linux. Suppose you are searching for files and want to...
Tag: rhel
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Solved: nrpe[]: Host 172.23.99.999 is not allowed to talk to us!
Today we will see one of the most common Nagios NRPE error message and its resolution. Lets see the error message and its resolution. I. Error Message [root@ngelinux001 ~]# service...
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How to install TCL 8.6 and TK 8.6 in Linux- The easiest way ?
In this post, we will see one of the easiest way to install TCL and TK 8.6 package on our Linux system. Lets look at this three step short process....
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How to setup nagios server on Linux ?
Nagios Installation on Linux 1. First create User and Group # useradd nagios # groupadd nagcmd # usermod -G nagcmd nagios # usermod -g nagcmd apache [root@ngelinux001 ~]# id...
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Copy shell script and execute it using Ansible.
Here we will see one Complete example to copy shell script and execute it, & get its output. I. Make Ansible Conifguration # cat ansible.cfg [defaults] inventory = hosts remote_user=saket...
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Ansible commands cheatsheet
Ansible Cheatsheet Today we will look at various frequently used Ansible commands that i used to refer everytime. We are connecting to remote users via username “john” 1. Get...
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How to run a command with root user in Ansible ?
In this post, we will see how to run a command with root user in ansible. There are two ways to do this. Lets have a look at both of...
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Adding new disk/LUN under multipath Linux mpath.
Suppose we want to add a new disk where multipath is configured. Lets add a 20Gb LUN and set up it under multipath on server. Create vg_products volume group on...
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Steps to remove clone from Veritas Volume Diskgroup ?
Today lets see the correct procedure to remove clone in Veritas VxVM Diskgroup. ### Display the snapshot volume. # vxsnap -g diskgroup dis snapshot_volume ### Stop the snapshot volume #...
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Solved: ln: failed to create hard link: Operation not permitted in Linux.
Today in this post, we will see a common error message and its solution. Lets see the error message and its solution. I. Errors TRKINS: Installing package JOO_e version 22.09-s001...