There isn't a quick and easy built-in way to drop a single currently active remote access connection from Astaro.
There are a couple of things that come to mind that you can try though:
1) If you have things setup so that you can access the remote host over the VPN connection and have admin rights on that machine (assuming it's a windows box), you can send a shutdown -m \-r -f -t 05 to force and immediate reboot. While the machine is rebooting, you can remove the user from the allowed user list in Astaro for the remote access type which will keep that user from reconnecting.
2) You can try disabling the remote access type in Astaro, which should sever the vpn connection. This will cut all VPN connections of that type though, not just one.
3) If you are not using automatic PF rules for the remote access connection type, you can create a PF rule, ordered to the top, to block all communications between the remote IP and your Astaro.
There isn't a quick and easy built-in way to drop a single currently active remote access connection from Astaro.
There are a couple of things that come to mind that you can try though:
1) If you have things setup so that you can access the remote host over the VPN connection and have admin rights on that machine (assuming it's a windows box), you can send a shutdown -m \-r -f -t 05 to force and immediate reboot. While the machine is rebooting, you can remove the user from the allowed user list in Astaro for the remote access type which will keep that user from reconnecting.
2) You can try disabling the remote access type in Astaro, which should sever the vpn connection. This will cut all VPN connections of that type though, not just one.
3) If you are not using automatic PF rules for the remote access connection type, you can create a PF rule, ordered to the top, to block all communications between the remote IP and your Astaro.