Tag: linux

Linux Application

Puppet already installed ? What Next ? – Part 1

Estimated read time 3 min read

A few days back, we have seen the installation of the Puppet server and Puppet Agent on the RHEL7 environment. In this article, we will focus on the technical part to administer and write manifests in the Puppet server to [Read More…]

Linux System Networking and Hardware Security

35 commands to understand Firewalld in RHEL7 environment

firewalld
Photo credits: cloudflare.com
Estimated read time 8 min read

Firewalld provides a dynamically managed firewall with support for network/firewall zones that define the trust level of network connections or interfaces. It has support for IPv4, IPv6 firewall settings, ethernet bridges, and IP sets. There is a separation of runtime [Read More…]

Linux Application

10 steps to install Puppet configuration management tool

Estimated read time 3 min read

Some days ago a guy asked me why I do not blog anything on Puppet configuration management tool and prefer Ansible over Puppet. True it is that I prefer Ansible because it is agentless and very easy to use. However, [Read More…]

Linux Application Linux System

Recover logical volumes data from deleted LVM partition

Estimated read time 3 min read

Have you ever deleted a logical volume by accident? Can you recover it looking into the backups? Well, the answer is YES. For those who are not familiar with Logical Volume Management (LVM) is a device mapper target that provides [Read More…]