In order to connect to the VPN I only need a few configuration options:
server.domain.name
PSK
user
pass
What is the proper way to configure an IPSec VPN connection on my Ubuntu 15.04?
I installed strongswan but I don't know how to configure /etc/ipsec.conf and /etc/ipsec.secrets. Their official documentation is a little confusing for the few options I need.
I also installed network-manager plug-ins like: OpenVPN and strongswan, but their interface requires certificate files to be entered and I cannot type the PSK.
network-manager-strongswan IPSec/IKEv2 example:
https://i.sstatic.net/wlfyc.jpg
Also I know this post may be realated to L2TP IPsec VPN client on Ubuntu 14.10 , but I didn't find an answer there.