Posts by Guoan Xiao (Admin)

rocky-linux-9-almalinux9-caching-dns-server

Set Up BIND DNS Resolver on RHEL 9/Rocky Linux 9/Alma Linux 9

This tutorial will show you how to set up a local DNS resolver on Rocky Linux 9/Alma Linux 9, with…

openconnect ubuntu

How to Set Up OpenConnect VPN Server (ocserv) on Ubuntu 24.04

This tutorial is going to show you how to run your own VPN server by installing OpenConnect VPN server on…

zeroSSL free certificate

How to Install Free ZeroSSL Certificate on Ubuntu Server

In the previous tutorial, we discussed the free Let’s Encrypt SSL certificate. Today I’m going to introduce another certificate authority…

5 Best Self-hosted VPN/Proxy Solutions

5 Best Self-hosted VPN/Proxy Solutions in 2023

If you want to use VPN for whatever reason, it’s always easy to sign up for a commercial VPN provider…

The Regulatory Landscape for Bitcoin's Future

The Regulatory Landscape for Bitcoin’s Future

The future of Bitcoin and its regulatory landscape remains uncertain and complex. As it continues to gain prominence, governments and…

Thinkorswim linux user interface

How to Install Thinkorswim Trading Platform on Ubuntu 22.04/20.04

This tutorial will show you how to install the Thinkorswim trading platform on Ubuntu 22.04/20.04 desktop, so you can trade…

Bitcoin Investment Progress for this Decade in Clanton

Bitcoin Investment Progress for this Decade in Clanton

Bitcoin, the most popular form of digital currency, has made significant strides in Clanton over the last decade. What was…

5 Things You Should Know About Linux As A Beginner

5 Things You Should Know About Linux As A Beginner

Like Windows, Mac OS, and iOS before it, Linux is an operating system. In recent years, it has accumulated nearly…

Building a Solid Foundation Managerial Training for Linux Enthusiasts

Building a Solid Foundation: Managerial Training for Linux Enthusiasts

Linux’s ever-changing world values technical expertise. Linux enthusiasts may leverage their in-depth knowledge of the open-source operating system in non-technical…

Set Up Z-Push ActiveSync For Ubuntu Mail Server

How to Set Up Z-Push ActiveSync For Ubuntu Mail Server

Z-Push is an open-source implementation of the Exchange ActiveSync protocol, which is used to synchronize emails, contacts, calendars, tasks between…

Use Clonezilla to Back Up and Migrate VPS

How to Use Clonezilla to Back Up and Migrate VPS

In a previous tutorial, I explain the process of backing up your hard drive with Clonezilla, which is a free…

Set Up APT Package Repository on Debian Ubuntu

How to Set Up APT Package Repository on Debian/Ubuntu Server

This tutorial is going to show you how to set up your own package repository on Debian/Ubuntu server. If you…

Reasons to Use Softphones in Your Call Center

Reasons to Use Softphones in Your Call Center

Communication greatly improved with the advancement of technology. From pagers and landlines, mobile phones came into popularity. Besides personal use,…

How to Fix Common Let's Encrypt Certbot Errors

How to Fix Common Let’s Encrypt/Certbot Errors

If you are a Linux server administrator, you probably know that Let’s Encrypt is a free, automated, and open certificate…

Is Hedera and the HBAR Network Most Effectively Tied to NFTs

Is Hedera and the HBAR Network Most Effectively Tied to NFTs?

When it comes to cryptocurrency and NFTs, there are a lot of buzzwords and jargon that are thrown around. Sometimes,…

lightmeter web interface

Linux Mail Server Monitoring with Lightmeter (Debian, Ubuntu)

This article will be showing you how to set up Lightmeter, which is an open-source self-hosted mail server monitoring tool,…

How Artificial Intelligence is Disrupting Data Management

How Artificial Intelligence is Disrupting Data Management

Data management and artificial intelligence have always had a symbiotic and reciprocal relationship. When integrated into the former’s tools, the…

How to Set Up WireGuard VPN Relay

How to Set Up WireGuard VPN Relay

This quick tutorial is going to show you how to set up VPN relay between two servers so that when…

Automatic IP and Domain Warm-up For Your Email Server

🔥 Automatic IP and Domain Warm-up For Your Email Server

This tutorial is going to show you how to warm up your email server IP address and domain name automatically,…

is linux secure for apps

Is Linux Secure for Apps?

There is a growing demand for application security tools, and when you factor in the increasing number of threats new…