This article will guide you to setting up your own WireGuard VPN server using Ubuntu 22.04 server on a cheap ~$6 VPS and use it as your internet gateway.
Unlike before that using DNS filtering, several upstreams have performed a TCP Reset Attack to block access to websites that are considered illegal. And why you (especially Indonesian) should care for this mess.
As a prerequisite to using this guide, and before continuing, you must make sure that you have successfully set up your own IPsec VPN server, and upgraded Libreswan to the latest version due to CVE-2019-10155. This for advanced users only. Other users please use IPsec/L2TP or IPsec/XAuth mode.
IPsec/XAuth mode is also called “Cisco IPsec”. This mode is generally faster than IPsec/L2TP with less overhead. IPsec/XAuth ("Cisco IPsec") is natively supported by Android, iOS, and MacOS. There is no additional software to install for them.
This is the next part after you successfully set up your own IPsec VPN server. Following these steps allow you to configure your Android, iOS, MacOS, and Linux machine using IPsec/L2TP VPN.
IPsec/L2TP is natively supported by Android, iOS, OS X, and Windows, so there is no additional software to install for them. Setup should only take a few minutes. For Linux users, additional L2TP network manager package needs to be installed.
A few years ago, I’ve found this gem which allow us to set up our own IPsec VPN server with L2TP, XAuth and IKEv2 on Ubuntu, Debian and CentOS distro.