Post
Topic
Board Bitcoin Technical Support
Re: About connecting node to hard-forked private network
by
ETFbitcoin
on 06/11/2023, 12:09:20 UTC
IIRC easiest way to do that is by adding connect=IP_ADDRESS to bitcoin.conf file or adding parameter --connect=IP_ADDRESS when you run Bitcoin Core.

Is there a way to start mining in this case?

Without any detail, i would suggest you to just perform solo mining. Check these guide,
[Guide] Solo mine testnet bitcoins with bfgminer, Bitcoin Core, and a CPU/GPU
[Guide] Solo mine testnet bitcoins with cgminer, Bitcoin Core, and a Compac F