3proxy external ip has no network connection
I have a Ubuntu linux server that has 1 main and 5 other network interfaces.
I’m trying to setup a proxy server using 3proxy.
My issue is I cannot use internet connection when I specify internal server as main ip and external as one of those other 5 network interfaces.
I tried to use same setup on Windows and it works.
Im using netplan to configure network interfaces and I did set the metric low for main and higher for other network interfaces.
I currently can fix the problem by changing metric to be lower for that external ip network interface but this is not a healthy solution since I cannot use the internet connection of the main network interface anymore.
Any suggestions?
My config.cfg file: