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.
VMware
vSAN cluster UUID mismatch | 1 Quick Solution
A quick solution to resolve vSAN cluster UUID mismatch in VMware environment.
August 16, 2020 No Comments
IPA Server
Installing IPA on a Raspberry Pi 4
Up and Running IPA server on a Raspberry Pi 4 in few steps.
August 12, 2020 2 Comments
Proxmox
Proxmox VM migration failed with Permission denied (publickey,password) quick fix
Quick fix for the Proxmox VM migration failed with error “Permission denied (publickey, password)”
August 7, 2020 No Comments
Kubernetes
Create a Rolling Update Kubernetes Deployment in 3 ways
Kubernetes Deployment will help to bring up our Application online in a short span of time with the number of designated Replica sets.
May 25, 2020 No Comments
Kubernetes
How to Create a Kubernetes Pod
Creating our first Kubernetes Pod on our new Kubernetes cluster in some available methods. Let’s see how to generate a YAML file from the created Pod as well.
May 24, 2020 No Comments
monitoring
Install and Configure Collectd Monitoring on Linux
Start Monitoring your production environment using collectd to collects the system and application performance metrics.
May 24, 2020 No Comments
raid
Introduction to Software RAID and RAID Levels in Linux
Physical RAID or Software RAID (Redundant array of independent disks are used for reliability, resilience and performance. The most important part is to save our precious data without losing it in a production platform.
May 22, 2020 No Comments
foreman
Provisioning Bare Metal and VM from Foreman in 6 easy steps
By Provisioning Bare metal and virtual machines, We can automate the process of installing an Operating system with the help of Foreman.
May 18, 2020 3 Comments
Linux networking
Configure Network Teaming in RHEL/CentOS8
Network Teaming or Link Aggregation, The mechanism of the teaming is by including multiple NIC’s into one.
May 12, 2020 No Comments
Logical Volume Management
Moving a Volume Group from one Server to another Server
Moving a Volume group from one system to another system without missing any underlying logical volumes and file systems.
May 10, 2020 2 Comments
Security
Import RPM Signing GPG keys on CentOS 8
GPG Keys or GNU Privacy Guard is used to making sure that we are getting the right package from a trusted repository.
May 8, 2020 No Comments
oVirt
Up and running oVirt 4.3 on CentOS 7
oVirt is a free Enterprise ready OpenSource Virtualization platform. The author of Ovirt is Red Hat and developed on Java, which is licensed under Apache License 2.0.
May 6, 2020 1 Comment
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 No Comments
Thinly Provisioned Logical volume is one of the advanced feature available in Logical volume Management, We can provision storage more than what we have.
