Install kvpnc by entering the following commands in the terminal:
sudo apt update sudo apt install kvpnc
Description:
frontend to VPN clients
KVpnc is a KDE frontend for various VPN clients. . It supports: * Cisco-compatible VPN client (vpnc) * IPSec (freeswan, openswan, strongSwan, racoon) * Point-to-Point Tunneling Protocol (PPTP) client (pptp-linux) * Virtual Private Network daemon (openvpn) * L2TP, Vtun & OpenSSH
Homepage: http://home.gna.org/kvpnc
Version: 0.9.6a-4build1
Section: universe/net