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So you have set up an IKEV2 VPN server using Strongswan somewhere or simply using a service that provides this type of VPN connection.
Now you want to easily configure the client VPN connection in CentOS/RHEL 8?
For some mysterious reason, the package
NetworkManager-strongswan-gnome is not available in base repositories.
We have rebuilt it so you can:
sudo dnf install NetworkManager-strongswan-gnome
That’s all there is to it. Now you can configure the connection using Gnome GUI.