Notification of successful VPN connection?

[BGood]

I seldom need to connect back to my Asus router via OpenVPN, but I'd prefer to leave it enabled just in case. When I do that, there seems to be a lot of attempts to connect. I don't suppose anything can be done about attempts. But I would like to be sent a notification email of any successful VPN connection. Is there a script or something I could install to do that?

 

[skeal]

I seldom need to connect back to my Asus router via OpenVPN, but I'd prefer to leave it enabled just in case. When I do that, there seems to be a lot of attempts to connect. I don't suppose anything can be done about attempts. But I would like to be sent a notification email of any successful VPN connection. Is there a script or something I could install to do that?

Why not just use an alternate port? Something beyond the quick port scan limits. I just chose a port at random and looked for problems as I used it. Seems to have stopped all attempts in my case.

 

[Martineau]

I would like to be sent a notification email of any successful VPN connection.

Is there a script or something I could install to do that?

You can use the OpenVPN Server '-client-connect' directive see OpenVPN v2.4 Reference Manual
e.g. In the OpenVPN Server Customisation panel enter

client-connect    /jffs/scripts/VPNClientConnect.sh

I posted a script VPNClientConnect.sh so all you need to do is insert your own custom e-mail Send_email() function at the top of the script, and uncomment the line at the bottom of the script

#Send_email $TEMPFILE

 

[BGood]

Thanks for both replies! I'll look into Martineau's script soon. As for changing the port, I have a few relatives (not in my area) that once in a while connect using my VPN and I'm not sure I can change the default port easily without possibly breaking them.