From 17b8b00b9537dc3ab3c31281541dd454ca33888c Mon Sep 17 00:00:00 2001
From: Pavel Jirasek <pavel.jirasek@vsb.cz>
Date: Wed, 19 Apr 2017 12:19:47 +0200
Subject: [PATCH] Bod 2,4,5,6
---
.../graphical-user-interface/vnc.md | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/docs.it4i/general/accessing-the-clusters/graphical-user-interface/vnc.md b/docs.it4i/general/accessing-the-clusters/graphical-user-interface/vnc.md
index ff8a67a67..652c9a00e 100644
--- a/docs.it4i/general/accessing-the-clusters/graphical-user-interface/vnc.md
+++ b/docs.it4i/general/accessing-the-clusters/graphical-user-interface/vnc.md
@@ -22,9 +22,9 @@ Verify:
!!! note
To access VNC a local vncserver must be started first and also a tunnel using SSH port forwarding must be established.
-[See below](vnc.md#linux-example-of-creating-a-tunnel) for the details on SSH tunnels. In this example we use port 61.
+[See below](vnc.md#linux-example-of-creating-a-tunnel) for the details on SSH tunnels. In this example we use display number 61.
-You can find ports which are already occupied. Here you can see that ports " /usr/bin/Xvnc :79" and " /usr/bin/Xvnc :60" are occupied.
+You can find display numbers which are already occupied on the login2. Here you can see that displays " /usr/bin/Xvnc :79" and " /usr/bin/Xvnc :60" are occupied.
```console
[username@login2 ~]$ ps aux | grep Xvnc
@@ -44,7 +44,7 @@ Starting applications specified in /home/username/.vnc/xstartup
Log file is /home/username/.vnc/login2:1.log
```
-Check if VNC server is started on the port (in this example 61):
+Check if VNC server is started (in this example display number is 61):
```console
[username@login2 .vnc]$ vncserver -list
@@ -62,8 +62,10 @@ Another command:
username 10296 0.0 0.0 131772 21076 pts/29 SN 13:01 0:01 /usr/bin/Xvnc :61 -desktop login2:61 (username) -auth /home/vop999/.Xauthority -geometry 1600x900 -depth 16 -rfbwait 30000 -rfbauth /home/username/.vnc/passwd -rfbport 5961 -fp catalogue:/etc/X11/fontpath.d -pn
```
+!!! note
+ The vncserver runs on port 5900 + display number. You get your port number simply as 5900 + display number (in this example 61), so the result is 5961.
-To access the VNC server you have to create a tunnel between the login node using TCP **port 5961** and your machine using a free TCP port (for simplicity the very same, in this case).
+To access the VNC server you have to create a tunnel between the login node using TCP **port 5961** and your machine using a free TCP port (for simplicity the very same, in this case). See examples for [Linux/Mac OS](#linuxmac-os-example-of-creating-a-tunnel) and [Windows](#windows-example-of-creating-a-tunnel).
!!! note
The tunnel must point to the same login node where you launched the VNC server, eg. login2. If you use just cluster-name.it4i.cz, the tunnel might point to a different node due to DNS round robin.
--
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