Question

Hi guys,

I have a bunch of RUT950s and am monitoring their statuses via MQTT, however, sometimes I'll need remote access to a unit but depending on the WAN network at the time, there may be an incoming firewall in the way and so I need a way for the unit to dial out and call home, opening a connection. I know one approach is to use OpenVPN as a client, which is fine, but when I scale up I don't want to be constantly terminating 100s-1000s of OpenVPN connections and so either need a more lightweight approach or a mechanism to enable the OpenVPN connection on demand.

The ideal for me would be being able to issue an MQTT message to trigger the activation of OpenVPN or Stunnel. I know Teltonika's RMS is an option but the cost is far too prohibitive for me.

Is anyone able to recommend any secure solution?

Many thanks

Answer 1

HI,

If your router has SIM card which support SMS commands, then you could try to use SMS command for switching OpenVPN: https://wiki.teltonika.lt/view/SMS_Utilities#Manage_OpenVPN

Comments

Thank you, this should work but is somewhat unideal as I would need to know the phone number, which I can't obtain automatically - so a manual management step but certainly not the end of the world.

Many thanks