Monitorare OpenVPN server con DumbMonit
An OpenVPN server through its management interface: version, whether it reports itself connected, and every client currently in session with its addresses and traffic.
DocumentazioneSito ufficiale: OpenVPN
Le descrizioni sono in inglese, come nel prodotto. Le etichette della pagina seguono la tua lingua.
Cosa controlla DumbMonit
OpenVPN's server process exposes its own control channel, the management interface: a local TCP listener, separate from the VPN itself, made for a monitoring tool rather than for a VPN client. DumbMonit reads it like any management client: the server's version, whether it reports itself connected, and every client currently in session, with its real and virtual address and its traffic. Nothing is ever sent that would change the server's state or disconnect a client. Clients are transient by nature — a laptop that goes to sleep simply disappears from the next reading. DumbMonit does not try to remember who was connected five minutes ago; it reports only who is connected now, plus the client…
Uso tipico. OpenVPN server through its management interface: version, state, connected clients
Esempi
- OpenVPN Access Server
- A plain openvpn --server on Linux
- pfSense or OPNsense OpenVPN (management enabled)
Come si collega
Cosa serve
- Management passwordThe shared password set by the third argument of the server's "management" directive.
Nessun account necessario.
Porte di rete da aprire
7505/TCPManagement interface (default)
Passaggi di configurazione: Turn on the management interface
Add this line to the server's configuration (server.conf, or as.conf on OpenVPN Access Server) and restart OpenVPN.
management 0.0.0.0 7505Recommended: protect it with a password, put in a file readable by the OpenVPN process alone and added as a third argument.
management 0.0.0.0 7505 /etc/openvpn/management-passwordIn DumbMonit, enter the server's address (vpn.lan, port 7505) and the management password if one is set.
Attenzione. Anyone who reaches the management port and knows the password can disconnect clients and reconfigure the running server: allow only the DumbMonit host in the firewall and set a password.