We are playing around the catapult code and docker image.
Based on https://github.com/nemtech/catapult-server/blob/master/resources/config-network.properties, are we supposed to change the value for identifier in the config with a name we pick for our own private network?
Right now it is recommended to leave that as either mijin or mijin-test.
You should be generating a new set of keys for your private nemesis block in order to prevent potential replays of same transactions across multiple networks. Given that, network identifier should not matter much. Major observable change is the start letters of the generated addresses.