Using Podman on CentOS and RHEL 8 | Easy Guide
April 16, 2021 No Comments
Using Podman we can manage the containers similar to the docker command. Podman is more secure than using docker and easier the process while we moving to K8s.
Recent Posts
Setup VLAN on pfSense for Home Network | 1 Easy guide
March 22, 2021 3 Comments
An easy guide on how to setup VLAN on pfSense with step by step pictures. Which help to segregate your LAN network for your home which may be mixed with IoT.
Setup a Linux server as a NAT router to share the Internet | 1 Easy guide
March 18, 2021 No Comments
Setup a Linux Desktop/Server to act as a NAT router. A Simple step by step guide will help with getting the internet on clients servers.
Troubleshooting Guides
Change default kernel to boot in RHEL 8 | Easy guide
December 13, 2020 No Comments
A how-to guide to Set the default kernel in RHEL based operating system. This may be required when we are installed with multiple kernel versions in our Linux servers.
grub2-editenv: error: environment block too small | Simple Solution
December 12, 2020 No Comments
A quick guide to resolve the “grub2-editenv: error: environment block too small” error when the grubenv file size exceeds the expected 1024 bytes.
vSAN cluster UUID mismatch | 1 Quick Solution
August 16, 2020 No Comments
A quick solution to resolve vSAN cluster UUID mismatch in VMware environment.
Kubernetes
How to access Kubernetes Dashboard ( Web UI)
To get a rich graphical view of Kubernetes cluster, we need to deploy a few pods, replica, service and much more, Which allow to access Kubernetes dashboard.
April 24, 2020 3 Comments
Kubernetes
How to Install a Kubernetes on CentOS 7
Kubernetes is a container orchestrator used to deploy container-based application upon the requirement for developers and system administrators.
April 18, 2020 No Comments
mariadb
How to install MariaDB in CentOS/RHEL 8 and Fedora
A simple guide about how to install MariaDB on Red Hat-based Linux distributions, In a few steps, We are good with spinning up an OpenSource DB server.
April 11, 2020 No Comments
Glibc
Recover from Starting Switch Root or corrupted Glibc
While starting the server it will not move forward after “Starting Switch Root”. Step by Step let’s see how to fix this issue.
April 1, 2020 No Comments
Linux permission
Recover from chmod 777 permission on a root filesystem
How to Recover from accidentally running chmod -R 777 / on any RPM-based Linux Operating systems.
March 31, 2020 1 Comment
Sudo
Linux Sudo to run Privileged Commands
Allow normal users to run any privileged commands by escalating to Sudo, by configuring Linux Sudo on any Linux os normal users are allowed to get root access.
March 29, 2020 No Comments
foreman
Register a Linux client with Foreman
How to subscribe a client with our content management server foreman/Katello/Satellite.
March 27, 2020 14 Comments
foreman
Install Foreman Katello Patch Management on CentOS 7
Foreman with katello patch management is a Content Management System provides a lot of features such as provisioning, Inventory, Patch management and much more.
March 25, 2020 19 Comments
Wazuh
Install Wazuh Open Source Security Analytics
Install production-ready Wazuh OpenSource security analytics tool to monitor your critical production environment.
March 17, 2020 2 Comments
IDM Server
Setup a FreeIPA or IDM Replica
IDM replica is the same copy of the existing master IDM server. The use of a replica is to have multiple copies of master and it can be used in different geographical location.
March 1, 2020 7 Comments
Filesystem
How to Backup and Restore XFS filesystem in RHEL 8
To backup and restore an XFS filesystem it’s possible by installing xfsdump package which provides xfsdump and xfsrestore commands.
February 4, 2020 No Comments
OpenStack
Create Windows Server Image for OpenStack
Create a Cloud image for OpenStack environment for windows server in QCOW2 format. This solves the purposes of running windows instance in a cloud environment.
January 30, 2020 No Comments
Logical Volume Management Guides
How to Shrink XFS Partition for the root filesystem | 1 Easy guide
December 23, 2020 No Comments
An easy step by step guide to shrink XFS partition on a logical volume by taking an xfsdump and restore using xfsrestore.
Resize root LVM Partition in RHEL and Oracle Linux 7/8 | Easy guide
December 19, 2020 No Comments
A quick guide to Resize Root LVM partition on any RHEL based operating systems such as CentOS, Oracle Linux, Scientific Linux and much more.
Recover a failed or deleted Physical Volume (PV) in LVM | 1 Easy guide
December 17, 2020 No Comments
A quick guide to recover the metadata of a failed physical disk or deleted physical volume in logical volume management.
Recover a deleted Logical Volume in LVM | 1 Quick guide
December 15, 2020 No Comments
A quick guide about restoring a deleted logical volume in Linux operating system. vgcfgrestore a single command is more than enough to restore the LV.
Moving a Volume Group from one Server to another Server
May 10, 2020 2 Comments
Moving a Volume group from one system to another system without missing any underlying logical volumes and file systems.
Create a Thinly Provisioned Logical Volume on Linux
September 1, 2019 1 Comment
Thinly Provisioned Logical volume is one of the advanced feature available in Logical volume Management, We can provision storage more than what we have.
