Provided by: libnss-resolve_229-4ubuntu21.31_amd64 

NAME
nss-resolve, libnss_resolve.so.2 - Provide hostname resolution via systemd-resolved.service
SYNOPSIS
libnss_resolve.so.2
DESCRIPTION
nss-resolve is a plugin module for the GNU Name Service Switch (NSS) functionality of the GNU C Library
(glibc) enabling it to resolve host names via the systemd-resolved(8) local network name resolution
service.
To activate the NSS module, "resolve" has to be added to the line starting with "hosts:" in
/etc/nsswitch.conf.
It is recommended to place "resolve" early in the nsswitch.conf line (but after the "files" entry),
replacing the "dns" entry if it exists, to ensure DNS queries are always routed via systemd-resolved(8).
EXAMPLE
Here is an example /etc/nsswitch.conf file that enables resolve correctly:
passwd: compat mymachines
group: compat mymachines
shadow: compat
hosts: files resolve mymachines myhostname
networks: files
protocols: db files
services: db files
ethers: db files
rpc: db files
netgroup: nis
Note that nss-resolve will chain-load nss-dns if systemd-resolved.service is not running, ensuring that
basic DNS resolution continues to work if the service is down.
SEE ALSO
systemd(1), systemd-resolved(8), nss-mymachines(8), nss-myhostname(8), nsswitch.conf(5)
systemd 229 NSS-RESOLVE(8)