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rhel7

Understanding LVM snapshots (create, merge, remove, extend)

Below steps are tested on Red Hat Enterprise Linux 7. Being a system administrator we have to perform activities which leads to filesystem and data changes so it is always a good idea to keep

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Sample kickstart configuration file for RHEL 7 / CentOS 7

I have already written an article with step by step instructions and examples to configure a PXE based boot server using http/ftp, dhcp and tftp services to automate kickstart based installation. In this article I

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How to find out on which core a process is running on in Linux

There are many processes in Linux which run on single core while many will switch between different core depending upon the availability. With below two methods you can find if a process is continuously running

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How to configure yum server repository using iso dvd

If you are not already aware of "YUM" (Yellowdog Updater, Modified) is used for installing rpms. Yum allows automatic updates, package and dependency management, on RPM-based distributions. Ideally yum is used to get direct updates

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Why is sudo command asking for root password in RHEL/CentOs 6 / RHEL/CentOS 7?

Follow the below link to get an overview of the syntax used in the sudoers file Understanding Syntax, Aliases, Variables used in sudoers file with examples In this blog I will try to keep my

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Understanding Load Average in Linux and when to be worried about it?

The one of the most important task of any Linux Admin includes performance monitoring which includes a parameter "Load Average" or "CPU Load". Load Average is the value which represents the load on your system

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