6.4. IPsec Host-to-Host Configuration Red Hat Enterprise

May 13, 2019 IPSEC VPN on Ubuntu 16.04 with StrongSwan - Raymii.org This is a guide on setting up an IPSEC VPN server on Ubuntu 16.04 using StrongSwan as the IPsec server and for authentication. It has a detailed explanation with every step. We choose the IPSEC protocol stack because of vulnerabilities found in pptpd VPNs and because it is supported on all recent operating systems by default. Configure a VPN tunnel between Linux and Windows XP Jun 03, 2020

IPSEC VPN on Ubuntu 16.04 with StrongSwan - Raymii.org

6.4. IPsec Host-to-Host Configuration Red Hat Enterprise By default, the Red Hat Enterprise Linux implementation of IPsec uses group 2 (or modp1024) of the Diffie-Hellman cryptographic key exchange groups. Group 2 uses a 1024-bit modular exponentiation that prevents attackers from decrypting previous IPsec transmissions even if a private key is compromised.

IPsec L2TP VPN server - Gentoo Wiki - Gentoo Linux

Debian/Jessie: Easiest way to connect to VPN (Ipsec)