We might choose to include human readable hostnames, rather than ip addresses.
In these cases, we are unable to correctly detect membership, but ipset will resolve and error on duplicate.
the sets contain ip addresses and not resolvable names, gencode-remote will produce output, but ipset will eventually resolve to ip
addresses/check for real membership.
For example:
__ipset good-sites --type hash:ip --add cdi.st
or:
__ipset blocked-sites --type hash:ip --del cdi.st