Install and Configure Munin monitoring server in Linux

Munin is an excellent system monitoring tool similar to RRD tool which will give you ample information about system performance in multiple fronts like disk, network, process, system and users. These are some of the default properties Munin monitors. How Munin works?

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How to list partition labels in Linux

This is a small post on how we can view list of assigned labels for partitions in Linux OS. We some times assign meaningful labels to partitions so that we can name them in /etc/fstab file for readability. For example most of

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Linux/Unix: Run a command or script at bootup

This is a small post on how to run some commands or scripts at the time of booting Need for running commands/scripts at boot time Some times we require to load some kernel modules  or run a command to accomplish a task.

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Linux: Load kernel modules at boot-up

Linux kernel is a wonderful piece of software which will act a master to all softwares installed in an OS. In this post we will see how to load servents(aka modules) in to kernel. Though Linux architecture taken inspiration from Unix, there are

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Linux/Unix:How to delete particular SSH keys

One of our team member used to delete entire know_hosts file content when he see below error message. This is because either host changed its keys or some how the entry is corrupted. root@linuxnix:/home/locserver# ssh [email protected] @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ WARNING: POSSIBLE DNS SPOOFING DETECTED!

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Ubuntu Linux:How to do unattended OS release upgrade?

Here in our office we have 200+ servers which are located in different weird locations like deserts, mountains, cities which are serving as receivers for our data. Our server are bit old which are running 10.04 Ubuntu(Lucid Lynx). As this version of

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Linux/Unix:List size of sub and hidden directories

Some times we require to see size of a directory or its sub directories or hidden directories so that we can come to know how much size they are occupying on our disk. In this post we will see how to use

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How to rotate logs manually in Linux?

In Linux every activity is monitored and logged in to their respective logs in /var/log folder. The depth of log information is dependent on the log configuration we did it in /etc/logrotate.d and we have to rotate them all the time to

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Basic Nginx troubleshooting in Linux/Unix

This is a small post on how to start troubleshooting Nginx server. If you are facing an issue with nginx or any server/service the first thing to conform is if our configurations are correct or not. Nginx have two commands to show

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Linux:Copy, change permissions and ownership of a file in a command

Today I came across a requirement to copy couple of files and change permissions to execute those files when writing some ansible playbooks. We can do this by using cp, chmod, chown command as shown below. Ownership is changed from root user

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