1 2 3 sudo apt-get -y install charon-systemd libstrongswan-extra-plugins libcharon-extra-plugins #sudo systemctl status strongswan 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 sudo tee /etc/swanctl/conf.d/swan.yanyong.cc.conf << EOF authorities