You would need to add the relevant lines from /etc/pam.d/radius (or
whatever the filename is for the RADIUS server's PAM configuration) to
/etc/pam.d/vnc, or simply set pam_service to the name of the RADIUS
server's PAM configuration file.


On 2/24/11 2:44 PM, Sebastiaan Breedveld wrote:
> Dear list,
> 
> I am testing the 1.1 pre-beta (2/21/11) 64 bit Linux binary on an Ubuntu 
> Natty machine. According to previous posts, I start the VNC server as:
> ./Xvnc :4 -SecurityTypes=VeNCrypt,Plain -PlainUsers=sebastiaan 
> pam_service=vnc
> 
> which works fine when connecting with:
> ./vncviewer :4 -SecurityTypes=VeNCrypt,Plain
> and supplying my credentials.
> 
> Unfortunately, if the password of the user is not stored locally, but 
> has to be retrieved from a server (a RADIUS server in my case), the 
> connection fails:
> ./Xvnc :4 -SecurityTypes=VeNCrypt,Plain -PlainUsers=sebastiaanRemote 
> pam_service=vnc
> 
> 
> /var/log/auth.log simply responds:
> Feb 24 21:34:35 uluru01 Xvnc: pam_unix(vnc:auth): authentication 
> failure; logname= uid=1000 euid=1000 tty= ruser= rhost=  
> user=sebastiaanRemote
> 
> 
> Xvnc gives the message:
> Thu Feb 24 21:33:44 2011
>   Connections: accepted: 10.177.20.2::53817
>   SConnection: Client needs protocol version 3.8
>   SConnection: Client requests security type VeNCrypt(19)
> 
> Thu Feb 24 21:34:36 2011
>   SConnection: AuthFailureException: invalid password or username
>   Connections: closed: 10.177.20.2::53817 (invalid password or username)
> 
> 
> My /etc/pam.d/vnc looks like this:
> auth    [success=2 default=ignore]    pam_unix.so nullok_secure
> auth    sufficient                      pam_radius_auth.so debug
> auth    requisite            pam_deny.so
> auth    required            pam_permit.so
> 
> account [success=2 new_authtok_reqd=done default=ignore]        pam_unix.so
> account sufficient                      pam_radius_auth.so
> account requisite                       pam_deny.so
> account required                        pam_permit.so
> 
> which works fine for other services. I copied this file to a pretty 
> simple service like chfn (cp /etc/pam.d/vnc /etc/pam.d/chfn) and it 
> works fine.
> 
> I am not sure where it goes wrong, but I am happy to help looking.
> 
> Sincerely,
> Sebastiaan
> 
> 
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