How to Fix the Docker dev-tun VPN issue in a Synology NAS

In this video we cover how to fix an issue with Docker containers that run a VPN using a Synology NAS. This error /dev/tun or TUN/TAP occurs because the tunnel interface for the NAS is not created after rebooting. In this video we cover how to automatically have it created every time the NAS boots so that your Docker containers can run their VPN without issues.

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Reference Guide: https://github.com/Tech-Byte-Tips/Reference-Guides/blob/main/Fix-Synology-VPN-Dev-Tun-Issue.md

Timecodes
0:00 - Start
0:05 - Intro
1:36 - Manual Fix
3:56 - Automated Fix #1 - GUI
7:17 - Testing Fix #1
8:05 - Automated Fix #2 - Command Line
14:44 - Testing Fix #2
15:39 - Outro