How to access GitLab on a private network with Tailscale

What this post added

This post details how to access a self-hosted GitLab instance on a private network using Tailscale, a VPN solution based on WireGuard. It covers installing Tailscale, setting up DNS for the private IP address, and configuring HTTPS with Let's Encrypt certificates. This enables secure remote access to self-hosted GitLab instances without traditional port forwarding, addressing risks associated with opening network ports and dynamic IP addresses.