How to define internal DNS server?

Protocol
1

Hello,
My scenario is as follows:

Outside Server (Shadowsocks Server) ---> Intermediate Server (Shadowsocks Client) ---> Client (ProxyCap)

I use ProxyCap to tunnel my entire system along with Shadowsocks, but I can’t access to my internal network!
Should I define my internal DNS server IP address?

Thank you.

2

Hello,
Any idea?

Thanks.