VNC Password on the server

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VNC Password on the server

Postby redge » 2005-06-28 00:45

*** allowed only 8 caracters and VNC Server do not have any default password from factory ***
examples: 12345678 or abcdefgh or 1234abcd or Ultr@VNC

Message after install: VNC default password not set

VNC Server won't let you connect without supplying a password unless the server is explicitly configured to use No Authentication.

"No Authentication" option is NOT recommended as it is a serious security risk. Use it only if you know exactly what it implies...

To configure the WinVNC server password:
- Right click on the VNC Tray icon (if no icon, Run Start Menu/programs/UltraVNC/UltraVNC Server)

- In the password field, enter your password
8 chars is recommended. Choose a password as a mix of special characters ( !@?!{... ), digits and letters so it's hard to guess, and reduces the risk of dictionary brute force attack.

(when entering the password, you can see the classical **** chars (or ||||) used to hide what you are typing)

- Click "Ok"

- You can know connect to this server using a vncviewer and the chosen password

- UVNC 3.3.6 based alpha/numerical password is 8 caracters maximum
(no respect this point should always fail with dsmplugin enabled)

UltraVNC is based on VNC 3.3.6 but also features MS-Logon authentication that allows 32 characters password. So it's always better to use MS-Logon method if you can.

* The MSRC4 Encryption plugin adds another level of security for the authentication:
- It requires a key file on both sides: a viewer that doesn't have the (your) good key file can't even start to try to authenticate.
- It encrypts the authentication handshaking process between the viewer and the server.

So it is recommended to use this plugin to get even stronger authentication security.
Last edited by redge on 2006-08-05 17:38, edited 8 times in total.
UltraVNC (built 20110518)
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