Comment by cryptonector

> - musl only connects to nscd when it cannot find an answer in its files backend

ISTM that this should be fixed in Musl, that it should only check `files` first when it comes first in `/etc/nsswitch.conf`.

Also, if IPC to `nscd` were fast enough, then maybe nss should just always call `nscd`. Maybe this should be configurable in `/etc/nsswitch.conf`, then nss should only ever look in `files` when `nscd` is unreachable.

TFA essentially is this, but not in Musl. It's a fine workaround, but it ought to be implemented in Musl.

> - The nscd protocol does not support enumeration, so primitives such as getpwent() cannot be implemented over nscd.

Backend-agnostic enumeration isn't really useful. If you need to enumerate then you need code to talk to the specific backend(s) that you care about (e.g., files, LDAP, etc.).