Category: Blog

Blog VMware
8. March 2022

How to back up ESXi host configuration

This article provides steps to back up and restore the ESXi host configuration. There are two conditions that need to be satisfied: 1 – The destination build number of the host matches the build from which the backup was taken.2 – The UUID of the host remains the same. You can backup and restore the host configuration using one of these methods: ESXi Command line […]

Advanced Tutorials Blog Linux Rocky Linux
1. March 2022

Update to Python 3.9 on CentOS Stream 8

In today’s guide you’ll learn to install Python 3.9 on CentOS Stream 8 Linux system. Python is general-purpose, interpreted and high-level programming language originally created by Guido van Rossum. Python is created for simplicity, deep integration and great extensibility. You can achieve much more with Python using powerful libraries and tools, including Django, Pygame, Matplotlib, Plotly, e.t.c. In the next steps we look at the […]

Blog Dell VMware
24. February 2022

Dell EMC PowerEdge Server TPM Support on vSphere 7.0

TPM stands for Trusted Platform Module. It is a chip that provides basic security functions on a hardware basis. It can be used to ensure the integrity of a system and platforms such as computers and servers or other electronic devices like smartphones. The chip is protected against manipulation by security mechanisms and, for example, generates, provides, stores or controls the use of cryptographic keys. […]

Blog Linux Rocky Linux
22. February 2022

RHEL 8 / CentOS 8 enable SSH service

The following article will explain how to install and start SSH service on RHEL 8 / CentOS 8 system. SSH is a client-server service providing secure encrypted connections over the network connection. Step 1: install the openssh package: Step 2: Start the OpenSSH service by executing the following command: Step 3: Check the status of the sshd service: Step 4: Enable the SSH service to start […]

Advanced Tutorials Blog Debian
18. February 2022

How to Update to PHP 8.1 for WordPress Site on Debian 10 / 11

In this article I am going to show you how I managed to update to PHP 8.1 for my WordPress Site. I am running this WordPress site on top of Debian 10. I had this notification on the WordPress dashboard telling that I should upgrade my PHP to the latest version. I was running PHP 7.3. As you notice on the picture above, PHP Update […]

Blog Linux Rocky Linux
15. February 2022

How to configure a static IP address on RHEL 8 / CentOS 8 Linux

There are many cases in which we may want to set a static IP for a network interface. In Red Hat Enterprise Linux 8, network interfaces are managed by the NetworkManager daemon, so to change a network interface settings we must somehow interact with it. In this tutorial we will see how can we set a static IP address, gateway and dns server for a NIC. […]

Advanced Tutorials Blog Debian
12. February 2022

Install and Configure GitLab CE on Debian 10 / 11

This guide will walk you through the steps to Install GitLab CE on Debian 10/11. GitLab Community Edition (CE) is an open-source application for hosting Git repositories in your own infrastructure. With GitLab you can do project planning and source code management to CI/CD and monitoring. GitLab has evolved to become a complete DevOps platform, delivered as a single application. The next sections will cover the steps to be […]

Advanced Tutorials Blog Debian
10. February 2022

Configure Postfix MTA as Send-Only on Debian 10 / 11

In this guide we’ll look at how you can configure Postfix MTA as a send-only SMTP server on Debian 10/11, meaning it doesn’t receive and process emails. Its job is only to act as Local mail transfer agent. Postfix is a popular open source Mail Transfer Agent (MTA) used in Linux and Unix environments. A send only mail server is useful especially when used in scripting, […]

Advanced Tutorials Blog Rocky Linux
28. January 2022

How to install and configure Pritunl VPN server on CentOS Stream 8

Pritunl VPN is one of the most secure open source VPN tools that are currently available for multi-cloud VPN peering. Pritunl VPN server uses MongoDB and can be deployed on any cloud infrastructure. Pritunl VPN Server supports OpenVPN and Wireguard. The VPN operates in a server-client architecture in such a way that the clients connect to the remote VPN server and routing is handled by […]

Blog VMware
27. January 2022

How to change E1000 into VMXNET3 vNIC on a Windows VM

No matter what the situation, there may be a requirement to change the vNIC of a VM from E1000 to VMXNET3. In my case I have changed my whole network infrastructure to 10 Gbit, Linux VMs are easy to migrate but Windows VMs are a little bit problematic, so I want to show you with this example how it works. Using the VMXNET Generation 3 (VMXNET3) […]