I need to connect to a Cisco VPN on Linux and at first I did this using the KDE NetworkManager plasma widget thingy. That worked fine and I'm able to connect to the VPN if I choose it from the Network Manager widget. However, if I try using the command line things don't work (IPs and URLs have been changed to protect the innocent):

NetworkManager client for KDE 4. Cisco VPN plugin for KDE Network Management components. There is no official package available for openSUSE Leap 15.1 Distributions Unsupported distributions. The following distributions are not officially supported. Use these packages at your own risk. Show. openSUSE:12.1 Setting up a Cisco VPN connection with Network Manager Oct 12, 2009 NetworkManager vpn is not available - CentOS

Gnome Network Manager VPN Tab Disabled ( Greyed out

Using NetworkManager | Administration Guide | SUSE Linux The KDE front-end for NetworkManager is the KNetworkManager applet. If the network has been set up for NetworkManager control, the applet usually starts automatically with the desktop environment and is shown as an icon in the system tray. If your system tray does not show any network connection icon, the applet is probably not started. KNetworkManager - KDE UserBase Wiki

Connect to OpenVPN using Network Manager on CentOS 8

sudo apt-get install network-manager-openvpn sudo apt-get install network-manager-openvpn-gnome sudo apt-get install network-manager-pptp sudo apt-get install network-manager-vpnc. Log out and log in again, restart your computer, or open a terminal and enter the following command: sudo systemctl restart network-manager (alternatively, you can