Connect to StrongSwan VPN using an .sswan file on linux

Extract the PKCS#12 file from the .sswan Open the sswan file, you should see something like this : "type": "ikev2-cert" so, according to the documentation, it’s a certificate authentication. We’ll need a CA certificate (usually provided separately, but if it’s not the case, don’t worry) with a client’s certificate and a private key. We’ll use the content of the p12 field of the .sswan file to get all this stuff.