Hyperledger Fabric - how to query about network artifacts, policies, chaincode etc

My concern is if I have setup on different VMS. Having specific channel for a pair of peers.

How and where to query information such as:

How many channels are their in the network? what are their names? who can join (specific) channel? which chaindode is part of a specific channel? who has the right to initiate chaincode? how to check if any peer does not have the right to initiate chaincode but is trying to? how to check what happens while chaincode is running? how to check if any peer is trying to join a channel that they should not join?

In general, how to query/select this information?

All commands that i have seen allow to invoke chaincode or join channel and so on. What am i missing?