Tag: rpm

How to find out the previous kernel version on CentOS after a reboot

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To find out the previous kernel version on CentOS after a reboot, you can use the rpm command to query the package database. Here are the steps:

Open a terminal or SSH session to your CentOS server.

Type the following command to list all installed kernels:

rpm -qa | grep "kernel-[0-9]"

This will output a list of all installed kernel packages.… Read the rest

How to install realpath on Centos 6

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cd /usr/local/src/
wget http://ftp.tu-chemnitz.de/pub/linux/dag/redhat/el6/en/x86_64/rpmforge/RPMS/realpath-1.17-1.el6.rf.x86_64.rpm
rpm -Uvh realpath-1.17-1.el6.rf.x86_64.rpm

Source: https://centos.pkgs.org/6/repoforge-x86_64/realpath-1.17-1.el6.rf.x86_64.rpm.html… Read the rest

How to install atop

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Enable epel repository if needed

## RHEL/CentOS 7 64-Bit ##
wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -ivh epel-release-latest-7.noarch.rpm
yum install atop -y

Useful URLs:

https://www.tecmint.com/how-to-enable-epel-repository-for-rhel-centos-6-5/

https://www.tecmint.com/how-to-install-atop-to-monitor-logging-activity-of-linux-system-processes/… Read the rest