Assuming you have a DB node bound in jepsen.client, returns the IP address of the control node, as perceived by that DB node. This is helpful when you want to, say, set up a tcpdump filter which snarfs traffic coming from the control node.

Look up an ip for a hostname. Memoized.

Look up an ip for a hostname. Unmemoized.

Looks up the IP address for a hostname using the local system resolver.

Looks up the IP address for a hostname using the currently bound remote node’s agetent. This is a useful fallback when the control node doesn’t have DNS/hosts entries, NS, but the DB nodes do.

The local node’s IP address

Can the current node ping the given node?