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, so your email can reach the inbox instead of landing in the spam folder. I have been running my own email server for over 10 years and I helped lots of folks to set up…


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Automatic IP and Domain Warm-up For Your Email Server

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 apps are experiencing every day, it comes as no surprise that this is the case. People are always on the lookout to find new ways to protect themselves against any potential threats, and recently, Linux…


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Is Linux Secure for Apps?

How to Proactively Identify Bugs In Your Code

Unfortunately, sometimes it does not matter how hard you try; a bug will appear in your code. This is part of software development and just something you have to deal with. But, the key to success and being efficient with time is to proactively identify these bugs or defects in your code while in production.…


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How to Proactively Identify Bugs In Your Code

How to Set Up V2Ray Proxy on Ubuntu 22.04/20.04 Server

This tutorial is going to show you how to set up V2Ray proxy server on Ubuntu 22.04/20.04. V2Ray is a lightweight, fast, and secure Socks5 proxy to bypass Internet censorship. We will learn how to set up the server side and how to configure the desktop client on Ubuntu/Windows. V2Ray Features Lightweight and fast. In…


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How to Set Up V2Ray Proxy on Ubuntu 22.04/20.04 Server

How to Set Up OpenVPN Access Server on Ubuntu 22.04/20.04

This tutorial is going to show you how to run your own OpenVPN Access server on Ubuntu 22.04/20.04/20.04. OpenVPN is an open-source, robust, and highly flexible VPN solution. Why Set Up Your Own VPN Server? Maybe you are a VPN service provider or a system administrator, which behooves you to set up your own VPN…


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How to Set Up OpenVPN Access Server on Ubuntu 22.04/20.04

How to Set Up OpenVPN with Stunnel on Ubuntu 22.04/20.04 Server

This tutorial is going to show you how to run your own OpenVPN server on Ubuntu 22.04/20.04/20.04. OpenVPN is an open-source, robust, and highly flexible VPN solution. Stunnel is a tool that tunnels OpenVPN traffic over TCP port 443 in TLS mode, so as to bypass firewall blocking. Why Set Up Your Own VPN Server?…


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How to Set Up OpenVPN with Stunnel on Ubuntu 22.04/20.04 Server