Monitoring system for vpn users who are connected to openvpn, wireguard, l2tp/ipsec, proxy

I am looking for a freelancer who can develop a monitoring system for VPN users who are connected to OpenVPN. The ideal candidate should have experience in developing monitoring systems for VPN protocols.

Monitoring system for vpn users who are connected to openvpn, wireguard, l2tp/ipsec, proxy i want to restrict connections to 4 maximum across all and also to monitor whos using