I tried to configure NIS client. but, My ubuntu took a time to shutdown/reboot after "/etc/nsswitch.conf" setting.
nis version
3.17-34ubuntu3
/etc/nsswitch.conf
passwd: nis compat
group: nis compat
shadow: nis compat
gshadow: files
hosts: files dns nis
networks: files
protocols: db files
services: db files
ethers: db files
rpc: db files
netgroup: nis
journalctl log of hang part
Jan 15 16:06:18 ubuntu systemd[1]: Stopped target Network is Online.
Jan 15 16:06:18 ubuntu systemd[1]: Stopped target Network.
Jan 15 16:06:18 ubuntu systemd[1]: Stopping Raise network interfaces...
Jan 15 16:07:48 ubuntu systemd[1]: networking.service: Stopping timed out.Terminating.
Jan 15 16:07:48 ubuntu systemd[1]: Stopped Raise network interfaces.
Jan 15 16:07:48 ubuntu systemd[1]: networking.service: Unit entered failed state.
Jan 15 16:07:48 ubuntu systemd[1]: networking.service: Failed with result 'timeout'.
Jan 15 16:07:48 ubuntu systemd[1]: Stopped target Local File Systems.
Any advice? Thank you.
