I've noticed that if I don't open the correct ports on my computer and router, and then type
status in the daemon, Monero will show
8+0 connections, meaning it has 8 connections where I'm getting data from other nodes, but no connections where nodes are gathering data from me. Basically, I understand that blocking the required ports results in no incoming connections.
My question: is it possible to mine with this 8+0 daemon? And if so, is the mining less efficient, or will the block solution be slower to spread to the P2P network, lessening the chance that my block solution will "win" and end up in the blockchain?