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Red Hat 5 and 6

How to check the swap memory usage by a process in Linux

Earlier I had written an article on swappiness and different commands to check memory usage per process on Linux here I will show you some of the methods which can be used to check the swap

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How to execute a script at %pre, %post, %preun or %postun stage (spec file) while installing/upgrading an rpm

RPM spec files have several sections which allow packages to run code on installation and removal. These bits of code are called scriptlets and are mostly used to update the running system with information from

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How to sign a key using gpg key (password or password-less) to an rpm in Linux

In my last article I had shared the steps to build an rpm from scratch How to build a signed rpm from scratch by building a source archive using Red Hat Linux In this article

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How to change rpmbuild (_tmppath) in a spec file (rpmbuild ignored directory) Linux

Below article explains in detail Step by Step Guide to build an rpm from scratch by building a source archive using Red Hat Linux By default when we attempt to build an rpm, the rpmbuild

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How to build a signed rpm from scratch by building a source archive using Red Hat Linux

Below explains every field of an rpm in detail Understanding an rpm package There are two types of RPM packages: source RPM (SRPM) binary RPM SRPMs and binary RPMs share the file format and tooling,

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How to configure Password-less authentication from Windows to Linux using Putty

I have already written few articles to configure passwordless authentication between two Linux servers, here in this article I will share the steps to configure password less login from Windows to Linux box using Putty

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How to migrate (move) logical volumes and volume groups from one disk to another disk online without reboot in Linux

In this article I will show you two methods to migrate a logical volume /dev/rhel/lv1 from one disk to another without reboot assuming you have the extra disk already available on your system. Below steps

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How to save %pre installation log file after installation in Red Hat 7

We intend to write multiple scripts in the %pre and %post section of the kickstart files as per our requirement but since these scripts are executed in the background it is very important that we

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