Certificate

Secure Communication with a WireGuard VPN

What will I cover in this post? We will learn how to configure a WireGuard Virtual Private Network (VPN) for secure communication between two servers. In this post, I plan on: Explaining what is WireGuard Explaining how to to configure WireGuard What is WireGuard? According to the WireGuard site: WireGuard® is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. WireGuard communicates via a WireGuard interface.

TLS Communication with Ghostunnel

What will I cover in this post? We will learn how to use ghostunnel for the TLS communication between non-TLS client and server. In this post, I plan on: Explaining what is ghostunnel Explaining how to to configure ghostunnel Explaining advanced security settings What is ghostunnel? The ghostunnel site explains it very well: Ghostunnel is a simple TLS proxy with mutual authentication support for securing non-TLS backend applications.

Simple way to generate a Subject Alternate Name (SAN) certificate

What will I cover in this post? We will learn how to generate the Subject Alternate Name (or SAN) certificate in a simple way. In this post, I plan on: Explaining what is the SAN certificate Explaining how to create the SAN certificate using the Java keytool Explaining how to export the certificate private and public keys using OpenSSL Explaining how to create the Certificate Signing Request (CSR) for the SAN certificate using the Java keytool What is the SAN certificate?