Comments on VNC-Server installation on CentOS 7

In the EPEL repository for EL7 x2go is available.  x2goserver and x2goclient are basically a fork of No Machine's NX3 protocol and is much faster and more flexible than VNC.  x2go also uses ssh for transport so no additional ports need to be open.  x2go also includes sound support.  Give it a try.  About the only thing you can't do with x2go is 3D stuff... so desktop environments that require accelerated 3D support won't work.

Hi

 Thank a lot for this great tutorial. It really works ! very great i must say, over Gnome desktop.

 But i try it for xfce desktop, but it just give me error at login when i log. I can log ok with vnc, but login screen said : ops error and click for logout. after that, just the vnc pointer and the black screen.

 Is there's other setting to add to have vnc run with XFCE ?

Thanks

Timed out waiting for a response from the host computer

The logfile: 

GNU nano 2.3.1 File: ...joe/.vnc/ns500529.ip-192-99-1.net:1.log

Initializing built-in extension MIT-SCREEN-SAVER

Initializing built-in extension DOUBLE-BUFFER

Initializing built-in extension RECORD

Initializing built-in extension DPMS

Initializing built-in extension X-Resource

Initializing built-in extension XVideo

Initializing built-in extension XVideo-MotionCompensation

Initializing built-in extension VNC-EXTENSION

Initializing built-in extension GLX

Sat Dec  6 16:14:37 2014

 vncext:      VNC extension running!

 vncext:      Listening for VNC connections on all interface(s), port 5901

 vncext:      created VNC server for screen 0

...

 How to fix it, please??

 Thank you!

Very good tutorial and worked very well Thank you very much

Hey

 great work!!

Great tutorial, it worked for me. Thank you for taking time to post it. 

please tell me how i can undo the steps after editing the VNC,this is because i missed to swith to the new user name replaced in the VNC file <user> changed it to root as one a my friend told me though he wasn't sure it would work i tried it.but after that i missed out on the step to switch to the newly added user in my case root.every thing else after wards went fine but i couldn't connect to the vps through rermote access . i had difficulties editing the vnc file as i was not quit used to vi editior.

i gave it a second attempt,again copied the VNC file and tried diffrent names and such but the output asking to set the new password wouldn't come after the first attempt

this is what happens :

[root@vinay~]# vncserver

New 'vinay:4 (root)' desktop is vinay:4

starting aplications specified in /root/.vnc/xstartup

Log file is /root/.vnc/vinay:4.log

[root@vinay ~]#

I used Safari and the Screen Sharing .app but I get a "Connection failed to 192.168.1.40:5901. The software on the remote computer appears to be incompatible with this version of Screen Sharing."  Thoughts on what could be the culprit?

Thanks.  Worked right off the bat.  Very nice!

When you turn off your server you have to perform the following steps to restart services.

1. under the created user enter 'vncserver'

2. su -

and then enter:

vncserver@:1service

(or if you created 2 then enter 2)

3. now enter vnc://<IP>:5901 into safari  and you can login

Trying to figure out an automated way to have these 2 service load

After enter the following command:

su -

I get prompted for a password and the pw I set for this user isn't working. Any suggestions?

Great tutorial - wish I had come here first.  Thanks for the post.

Thanks, worked like a charm.. I've used it several times now..

Seriously helpful.  Used this to get it working in Scientific Linux.  Thanks.

It works in first attempt. The change of file path was creating confusion.

Thank you so much.

nice tutorial, thanks,

But i see a new session not "my session", what i do wrong?

Cheers,

Nice tutorial, it worked for me

It worked like a charm! :)

There is a way to change de default resolution and depth?

Regards

Vitor Jr.

Thanks for this tutorial...

I have one doubt, using this following installation i will communicate all systems but Centos 7 pc will not communicate to Centos 6.4 pc..

centos 6.4 pc will access to communicate centos 7..please kindly solve my problem

Excellent, but i did a second vnc screen for the oracle user and i cant connect to that one, the root one connects normally, but the second one is just giving me connection refused.

Can you name a single CentOS GUI tool that make the administration more powerful compared to CLI?

can someone please explaind on how to carry this out step by step it wont let me save it its very frustrating

Replace the string <USER> with appropriate vncuser’s username.  In my case I will be using the user srijan just created above:

Hi

I followed these steps . 

However when i typed reboot just before the vnc client step, my server stopped working. 

I contacted customer support and they said 

"Installation of NetworkManager broke networking on the VM. 

I have removed the package and the issue is now resolved."

What does this actually means.. 

My server started working normally but I was not able to connect with VNC

What if I want to share a active desktop ? i.e. sharing screen and control.

great article and posting it is much appreciated.

May I not install GNOME Desktop?

works like charm!

Everything is perfect documented what is enough to VNC server and is working!

I have special question, how to configure VNC server for using remote access  to an already logged in GUI session, which I need to help another logged user on that server, PC. In this case I and remote user must  see  the same GUI- screen.

I  created file /etc/systemd/system/vncserver@:0.service   - with parameter  DISPLAY 0, but every time  vnc server is start on DISPLAY 1

Any idea what I need to change or what I am doing wrong?

Best regards

Thanks, nice post

Followed everything faithfully but I just get a grey window with a few checkboxes on the top left (Accept clipboard from viewers, Send clipboard to viewers, Send primary selection to viewers).  How do I get an actual useful desktop to appear?

After re-boot i run systemctl status vncserver@:1.serviceBut i get this error: Job for vncserver@:1.service failed because a configured resource limit was exceeded. See "systemctl status vncserver@:1.service" and "journalctl -xe" for details.Any ideas on how to fix this?

My CentOS 7 Desktop installation says that it already has a "minimal installation of TigerVNC server." Will the rest of the steps in this guide work with that, or do I need to install the full TigerVNC package?

Hi there, nice tutorial first of all, but I can't control the other machine using mine. can somebody help me please? Thank you very much!

It indeed is a great write up. Thank you very much.

For those whose machine did not ask for a password after starting vncserver, as mine did not, use vncpasswd to set the password.

This didn't work for me. Now I can't remote at all 

systemctl daemon-reload

systemctl enable vncserver@:2.service

rebootsystemctl start vncserver@:2.service

This is a great Tutorial thanks a lot!!, But I'm using windows tight vnc to connect, i'm getting Authentication error, how do I change the password of vnc access 

Hi,i face an error when using systemctl start vncserver@:2.service.I found the solution for this.start the service manualy using the command by typing the following as root.It is a bug in the systemctl.

the server is not wroking the unit entered the failed state help

top! thanks

Thanks !! this helped me a lot 

After applying

I am getting following problem:

this system is not registered with an entitlement server. you can use subscription-manager

Existing lock /var/run/yum.pid: another copy is running as pid 284209

Kindly help. 

thanks in advance