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: centos
-
-
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...
-
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...
-
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...
-
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...
-
Ansible playbook to create logical volumes under LVM on Redhat or CentOS linux.
Let us have a look at another ansible playbook which will create various logical volumes under LVM. The playbook is not complete in the sense that roles text is not...
-
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...
-
Ansible playbook to install list of packages on Redhat or CentOS Linux post OS install.
Here i will show you a sample playbook you can use to install a list of packages in linux. This is a sample playbook we use to install various packages...
-
Analyzing crash dump or vmcore file in linux step by step.
Today we will see one of the most useful article how to analyze the vmcore file in linux. Lets see step by step how to achieve this. 1. Check the...
-
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...