How to encrypt bash shell script in Linux ?
Today in this post, we will see how to encrypt a shell script in Linux. Lets have a look at this step by step. 1. Download shc source code from...
Tag: make
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How to configure and install Nagios Server on Linux ?
Today we will see Nagios Installation on Linux Lets see step by step procedure how to do this in Linux. 1. First create User and Group # useradd nagios #...
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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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Solved: Repodata is over 2 weeks old ?
Today we will look one of the most common error message. Lets have a look at the error message and its solution. I. Error Message [user@ngelinux001 ~]$ yum search nvidia...
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Solved: Error with swapon: swapon failed: Invalid argument.
Today in this article, we will look at an interesting issue where we are getting error while adding new swap. I. Issue/Error Message bash-4.2$ sudo swapon -a swapon: /oracle/swapfile:...
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Solved: Veritas Cluster group is not starting on two nodes as expected.
I. Issue: Veritas group is not starting on two nodes as expected by application support teams. ngeuser1@ngeaix027> hagrp -online NGEL-threadpool_cache_now -any VCS NOTICE V-16-1-50735 Attempting to online group on system...
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How to make variables as read only in bash shell linux ?
Variables in Linux can be made read only using the keyword “readonly”. For example, if we want a variable to contain a value say 10 and must not be changed...
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Why journalctl logs disappear after reboot and how to make it permanent ?
By default, Journald logs gets stored in /run/log/journal directory and disappear once the system gets rebooted. I. Default Journald configuration [root@localhost ~]# date Wed Mar 13 10:50:29 PDT 2019 [root@localhost...