Our network will be healthiest when we have PTC holders running full nodes.
This means allowing both incoming and outgoing connections.
Instructions for Bitcoin are here: https://bitcoin.org/en/full-node#network-configuration
Patchcoin uses port 7801 for those instructions. The more people running full nodes, the better.
Note that Patchcoin's blockchain is far, far smaller than Bitcoin.
You can use this tool to check if the settings are correct. https://www.yougetsignal.com/tools/open-ports/. Enter your IP address and port 7801
And if that seems overwhelming, don't worry! Running a full node is not mandatory to hold PTC.