How to set more than 8 connections? I have 3 ubuntu mining machines and getinfo says they all have 8 connections.
Only 1 computer in the local network can be exposed.
You need to access your router and forward port 51339 to the local computer you want to turn into a full node.
I've forwarded port 51339 on one system and did an "addnode" from a second system to that first system. First now has 27 connections and second remains at 8.