Linux vnc server no password

How to set a VNC password?

Can anyone say me how to set a VNC password in Ubuntu? Such that if anyone access my machine through VNC it should prompt for a password.

2 Answers 2

You can set a password when you open Remote Desktop.

Or with vncpasswd you can also set the password for the vnc-server.

So if someone want to connect to you, he has to enter the password.

Which vnc server do you use? Start Options: vnc4server: Command to start: vncserver . Then run vncpasswd . tightvncserver: Command to start: tightvncserver . Then run vncpasswd . Gnome build in vino-server: Command to start: vino-preferences And Activate: «Allow other users to view your desktop» and set a password.

In my case, I forgot the password to the VNC server. For my situation, the final target was TightVNC running on Ubuntu 18.04 which I needed to reach from my mac.

You first kill the existing VNC sessions with

Use something like this to find out if you’ve killed all sessions. Usually, the vncserver is running on port 5901:

sudo netstat -peanut | grep "vncserver" 

If there is something, repeat the kill command with the appropriate vncserver -kill :2 or whatever listing. If nothing, then you can remove the default original password setting with:

And you’ll be prompted again for a new password. The daemon should run on port 5901, which you can query with the netstat command above.

Источник

Enable VNC Password Authentication

This document (7004096) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Desktop 11 (SLED 11)
SUSE Linux Enterprise Server 11 (SLES 11)
SUSE Linux Enterprise Server 10
SUSE Linux Enterprise Desktop 10

Situation

Remote access has been enabled in YaST under Network Devices —> Remote Administration (VNC). When connecting from a VNC viewer a session login is brought up with no VNC login required.

Resolution

Step 1
On the remote system open a terminal window and «su» to become the root user (if not already logged in as root) then enter the command:

Enter the passwords as prompted. The first one for full remote access and the second for read-only access. This will create and store the passwords in the file «/root/.vnc/passwd».

Step 2
Open YaST and select Network Services—>Network Services (xinetd). Scroll down the list to the «vnc1» selection and click on it then click on the «Edit» button.

Change the «User:» selection to «root» (the default setting is «nobody»).

Add the following text to the end of the «Server Arguments» line. Be sure to include a space between the last entry and this new argument:

-rfbauth /root/.vnc/passwd

Connect from the VNC viewer and you should now be asked for the vnc password prior to viewing the session login.

Additional Information

You will notice that multiple VNC sessions can be enabled in xinetd. The VNC password can be enabled on all of them by changing the user setting to root and adding the same server argument.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented «AS IS» WITHOUT WARRANTY OF ANY KIND.

• Document ID:7004096
• Creation Date: 04-Aug-2009
• Modified Date:03-Mar-2020
• • SUSE Linux Enterprise Desktop
  • SUSE Linux Enterprise Server

  For questions or concerns with the SUSE Knowledgebase please contact: tidfeedback[at]suse.com

  Источник

  Thread: vnc4server: No password configured for VNC Auth

  First Cup of Ubuntu

  vnc4server: No password configured for VNC Auth

  I want to use my Ubuntu Server 14.04.1 LTS as a VNC server. I installed lightdm and vnc4server. On the client, I installed xvnc4viewer. Whenever I try to connect to the server, after I typed in my password, I get:

  Here is my /etc/lightdm/lightdm.conf:

  [SeatDefaults]
  autologin-user=
  user-seesion=ubuntu
  greeter-session=unity-greeter
  allow-guest=false
  [XDMCPServer]
  enabled=true
  port=177
  [VNCServer]
  enabled=true
  command=/usr/bin/Xvnc4 -SecurityTypes None -rfbauth /etc/vncpasswd
  listen-address=192.168.178.23
  port=5900
  width=1280
  height=1024
  depth=24

  192.168.178.23 being the IP adress of my server.

  To set the VNC password, I ran sudo vncpasswd /etc/vncpasswd. I had to run it as sudo to get write access.

  What can I do to make it work?

  A minha p�tria � a l�ngua portuguesa

  Join Date Nov 2012 Location Halloween Town Beans 10,649 —> Beans Hidden! Distro Xubuntu Development Release

  Re: vnc4server: No password configured for VNC Auth

  First Cup of Ubuntu

  Re: vnc4server: No password configured for VNC Auth

  First Cup of Ubuntu

  Re: vnc4server: No password configured for VNC Auth

  • Site Areas
  • Settings
  • Private Messages
  • Subscriptions
  • Who’s Online
  • Search Forums
  • Forums Home
  • Forums
  • The Ubuntu Forum Community
    1. Ubuntu Official Flavours Support
       1. New to Ubuntu
       2. General Help
       3. Installation & Upgrades
       4. Hardware
       5. Desktop Environments
       6. Networking & Wireless
       7. Multimedia Software
    2. Ubuntu Specialised Support
       1. Ubuntu Development Version
       2. Security
       3. Virtualisation
       4. Ubuntu Servers, Cloud and Juju
          1. Server Platforms
          2. Ubuntu Cloud and Juju
       5. Gaming & Leisure
          1. Emulators
       6. Wine
       7. Development & Programming
          1. Packaging and Compiling Programs
          2. Development CD/DVD Image Testing
          3. Ubuntu Application Development
          4. Ubuntu Dev Link Forum
          5. Programming Talk
          6. Repositories & Backports
             1. Ubuntu Backports
                1. Bug Reports / Support
       8. System76 Support
       9. Apple Hardware Users
    3. Ubuntu Community Discussions
       1. Ubuntu, Linux and OS Chat
          1. Recurring Discussions
          2. Full Circle Magazine
       2. The Cafe
          1. Cafe Games
       3. Market
       4. Mobile Technology Discussions (CLOSED)
       5. Announcements & News
       6. Weekly Newsletter
       7. Membership Applications
       8. The Fridge Discussions
       9. Forum Council Agenda
       10. Forum Feedback & Help
           1. Request a LoCo forum
       11. Resolution Centre
    4. Other Discussion and Support
       1. Other OS Support and Projects
          1. Other Operating Systems
             1. Ubuntu/Debian BASED
             2. Debian
             3. MINT
             4. Arch and derivatives
             5. Fedora/RedHat and derivatives
             6. Mandriva/Mageia
             7. Slackware and derivatives
             8. openSUSE and SUSE Linux Enterprise
             9. Mac OSX
             10. PCLinuxOS
             11. Gentoo and derivatives
             12. Windows
             13. BSD
             14. Any Other OS
       2. Assistive Technology & Accessibility
       3. Art & Design
       4. Education & Science
       5. Documentation and Community Wiki Discussions
       6. Tutorials
          1. Outdated Tutorials & Tips
       7. Ubuntu Women
       8. Ubuntu LoCo Team Forums
          1. Americas LoCo Teams
             1. Argentina Team
                1. Software
                2. Hardware
                3. Comunidad
             2. Arizona Team — US
             3. Arkansas Team — US
             4. Brazil Team
             5. California Team — US
             6. Canada Team
             7. Centroamerica Team
             8. Chile Team
                1. Comunidad
                2. Hardware
                3. Software
                4. Instalaci�n y Actualizaci�n
             9. Colombia Team — Colombia
             10. Georgia Team — US
             11. Illinois Team
             12. Indiana — US
             13. Kentucky Team — US
             14. Maine Team — US
             15. Minnesota Team — US
             16. Mississippi Team — US
             17. Nebraska Team — US
             18. New Mexico Team — US
             19. New York — US
             20. North Carolina Team — US
             21. Ohio Team — US
             22. Oklahoma Team — US
             23. Oregon Team — US
             24. Pennsylvania Team — US
             25. Peru Team
             26. Texas Team — US
             27. Uruguay Team
             28. Utah Team — US
             29. Virginia Team — US
             30. West Virginia Team — US
          2. Asia and Oceania LoCo Teams
             1. Australia Team
             2. Bangladesh Team
             3. Hong Kong Team
             4. Myanmar Team
             5. Philippine Team
             6. Singapore Team
          3. Europe, Middle East, and African (EMEA) LoCo Teams
             1. Albania Team
             2. Catalan Team
             3. Portugal Team
             4. Egypt Team
             5. Georgia Team
             6. Ireland Team — Ireland
             7. Kenyan Team — Kenya
             8. Kurdish Team — Kurdistan
             9. Lebanon Team
             10. Morocco Team
             11. Saudi Arabia Team
             12. Sudan Team
             13. Tunisia Team
          4. Other Forums & Teams
          5. LoCo Archive
             1. Afghanistan Team
             2. Alabama Team — US
             3. Alaska Team — US
             4. Algerian Team
             5. Andhra Pradesh Team — India
             6. Austria Team
             7. Bangalore Team
             8. Bolivia Team
             9. Cameroon Team
             10. Colorado Team — US
             11. Connecticut Team
             12. Costa Rica Team
             13. Delhi Team
             14. Ecuador Team
             15. El Salvador Team
             16. Florida Team — US
             17. Galician LoCo Team
             18. Greek team
             19. Hawaii Team — US
             20. Honduras Team
             21. Idaho Team — US
             22. Iowa Team — US
             23. Jordan Team
             24. Kansas Team — US
             25. Libya Team
             26. Louisiana Team — US
             27. Maryland Team — US
             28. Massachusetts Team
             29. Michigan Team — US
             30. Missouri Team — US
             31. Montana Team — US
             32. Namibia Team
             33. Nevada Team — US
             34. New Hampshire Team — US
             35. New Jersey Team — US
             36. Northeastern Team — US
             37. Panama Team
             38. Paraguay Team
             39. Qatar Team
             40. Quebec Team
             41. Rhode Island Team — US
             42. Senegal Team
             43. South Carolina Team — US
             44. South Dakota Team — US
             45. Switzerland Team
             46. Tamil Team — India
             47. Tennessee Team — US
             48. Trinidad & Tobago Team
             49. Uganda Team
             50. United Kingdom Team
             51. US LoCo Teams
             52. Venezuela Team
             53. Wales Team
             54. Washington DC Team — US
             55. Washington State Team — US
             56. Wisconsin Team
             57. Yemen Team
             58. Za Team — South Africa
             59. Zimbabwe Team

  Tags for this Thread

  Bookmarks

  Bookmarks

  Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

  vBulletin �2000 — 2023, Jelsoft Enterprises Ltd. Ubuntu Logo, Ubuntu and Canonical � Canonical Ltd. Tango Icons � Tango Desktop Project.
  User contributions on this site are licensed under the Creative Commons Attribution Share Alike 4.0 International License. For details and our forum data attribution, retention and privacy policy, see here

  Источник