To remove a Physical Volume (PV) from a Volume Group (VG) in LVM (Logical Volume Manager), follow these steps: 1. Check the Current Setup First, identify the Volume […]
howtos
How to install latest python with openssl on CentOS/RedHat/Oracle Linux 7
The tutorial used here is done on Oracle Linux 7. Download and extract the latest python Install the pre-requirements As latest python is not compatible with the default […]
howtos
How to rewrite sender address in postfix using canonical_maps
To rewrite sender addresses in postfix using canonical_maps, you need to configure postfix to use a canonical map file. Create the canonical map file: First, create a file […]
howtos
Changing metric value of an interface using nmcli command
Note the current metric value: Find connection name by running nmcli connection show Run nmcli connection modify ipv4.route-metric to change the metric value Run nmcli connection up to […]
howtos
How to verify the integrity of an installed package on RHEL/CentOS
To verify the integrity of an installed RPM package on your system: Open a terminal or command prompt on your Linux system. Run the following command to verify […]