Categories
DevOps

How to display available versions of Python package

Use a Python package installer to display available versions of the specific Python package.

Categories
Uncategorized

How to manage systemd services remotely

Manage systemd services remotely over SSH protocol.

Categories
Uncategorized

How to edit file in-place

Use sponge utility to read standard input and safely write it out to the same file.

Categories
SysOps

How to fix device excluded by a filter

Fix “device excluded by a filter” LVM error.

Categories
SysOps

How to create the simplest possible nftables firewall

Create the simplest possible firewall using nftables framework with relaxed rules that will allow all outgoing traffic, incoming ICMP echo requests, and ssh connections.

Categories
DevOps

How to install Nexus Repository Manager 3

Install Nexus Repository Manager (NXRM) 3.

Categories
SysOps

How do display physical volumes associated with the volume group

Display physical volumes associated with the volume group.

Categories
SysOps

How to use templates inside shell scripts

Use templates inside shell scripts by substituting environment variables.

Categories
DevOps

How to check the HashiCorp software version

Use Checkpoint service to check the HashiCorp software version.

Categories
SysOps

How to lock specified packages from being updated

Use versionlock plugin to protect packages from being updated on the CentOS operating system.