ipsec

curl -fsSL get.docker.com -o get-docker.sh
sh get-docker.sh

cat >./vpn.env <<EOL
VPN_IPSEC_PSK=ipsec_shared_key
VPN_USER=admin
VPN_PASSWORD=vpn_pass
VPN_DNS_SRV1=1.1.1.1
VPN_DNS_SRV2=1.0.0.1
VPN_DNS_SRV3=8.8.8.8
EOL

docker run \
    --name ipsec-vpn-server \
    --env-file ./vpn.env \
    --restart=always \
    -p 500:500/udp \
    -p 4500:4500/udp \
    -p 443:500/udp \
    -p 8443:500/udp \
    -v /lib/modules:/lib/modules:ro \
    -d --privileged \
    hwdsl2/ipsec-vpn-server

docker exec -it ipsec-vpn-server ipsec status

docker exec -it ipsec-vpn-server ipsec whack --trafficstatus