I got vncserver working per:
https://www.tecmint.com/install-and-configure-vnc-server-in-centos-7/
Then I went to set up a second instance, and have that for logging on to root:
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cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:2.service
vi /etc/systemd/system/vncserver@:2.service
replace <USER> with root
systemctl daemon-reload systemctl start vncserver@:2
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I got the message:
Job for vncserver@:2.service failed because a configured resource limit was exceeded. See "systemctl status vncserver@:2.service" and "journalctl -xe" for details.
#systemctl -l status vncserver@:2.service
● vncserver@:2.service - Remote desktop service (VNC) Loaded: loaded (/etc/systemd/system/vncserver@:2.service; disabled; vendor preset: disabled) Active: failed (Result: resources) since Wed 2018-08-01 08:45:19 EDT; 1min 8s ago Process: 2267 ExecStart=/usr/sbin/runuser -l root -c /usr/bin/vncserver %i (code=exited, status=0/SUCCESS) Process: 2260 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)
Aug 01 08:45:14 localhost systemd[1]: Starting Remote desktop service (VNC)... Aug 01 08:45:19 localhost systemd[1]: PID file /home/root/.vnc/localhost:2.pid not readable (yet?) after start. Aug 01 08:45:19 localhost systemd[1]: Failed to start Remote desktop service (VNC). Aug 01 08:45:19 localhost systemd[1]: Unit vncserver@:2.service entered failed state. Aug 01 08:45:19 localhost systemd[1]: vncserver@:2.service failed.
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And yet, I am able to connect to 5902! It is running.
cat /root/.vnc/localhost:2.log
shows:
Xvnc TigerVNC 1.8.0 - built Apr 11 2018 21:04:25 Copyright (C) 1999-2017 TigerVNC Team and many others (see README.txt) See http://www.tigervnc.org for information on TigerVNC. Underlying X server release 11903000, The X.Org Foundation
Wed Aug 1 08:45:16 2018 vncext: VNC extension running! vncext: Listening for VNC connections on all interface(s), port 5902 vncext: created VNC server for screen 0
Wed Aug 1 08:45:23 2018 ComparingUpdateTracker: 0 pixels in / 0 pixels out ComparingUpdateTracker: (1:nan ratio)
Wed Aug 1 08:51:01 2018 Connections: accepted: 192.168.160.20::53318 SConnection: Client needs protocol version 3.8 SConnection: Client requests security type VeNCrypt(19) SVeNCrypt: Client requests security type TLSVnc (258)
etc.
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what is going on with systemctl?
thanks