
This effectively disables nscd's built-in hosts cache, which turns out to be erratic in some cases. We only use nscd these days as a more ABI-neutral NSS dispatcher mechanism. Local caching should still be possible with local resolvers in /etc/resolv.conf (via the `dns` NSS module), or without local resolvers via systemd-networkd (via the `resolve` nss module) We don't set enable-cache to no due to https://github.com/NixOS/nixpkgs/pull/50316#discussion_r241035226.