IPsec

Set Up IKEv2 VPN Server and Clients
Set Up IKEv2 VPN Server and Clients
IKEv2 contains improvements such as Standard Mobility support. This is my personal snippet to set up IKEv2 VPN server & clients for multiple servers.
Configure IPsec/XAuth VPN Clients
Configure IPsec/XAuth VPN Clients
Following these steps allow you to configure your Android, iOS, MacOS, and Linux machine using IPsec/XAuth (Cisco IPsec) VPN.
Configure IPsec/L2TP VPN Clients
Configure IPsec/L2TP VPN Clients
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, XAuth, IKEv2) VPN Server Auto Setup
IPsec (L2TP, XAuth, IKEv2) VPN Server Auto Setup
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, RHEL, and CentOS.