NX Server System Administrator’s Guide
Prepared by:
Silvia Regis
N°:
D-811_002-NXS-SAG
Approved by:
Sarah Dryell
Last modified:
2015-05-25
Amended:
3.11. Greeting Messages
The following configuration keys available in /usr/NX/etc/node.cfg allow you to personalize a
greeting message to be shown at session start-up. Uncomment the keys and edit the text of the
message,
for example:
NodeFirstLoginGreeting = "Welcome to your first NX session" and: NodeLoginGreeting
= "Welcome back to your NX session"
4. NX Server Authentication
NX is configured by default to allow access for any system user, as long as the user provides valid
credentials for the SSH login. Please note that SSH authentication without password is not supported.
NX offers an alternative authentication method, allowing the administrator to specify which user can
access the system through NX. This works by implementing a separation between the system
password and the NX password, so that, for example, it is possible to forbid remote access to the
system by any other means except NX and use the NX tools to implement effective accounting of the
system resources used by the user.
The NX administrator can control access to the NX system by configuring the server to use the
authentication method better suited:
System authentication relying on SSHD + PAM authentication
NX authentication relying on NX Password DB
A further level of control, relying on the NX User DB, can be achieved by enabling only a restricted
group of users to connect to the NX server. This configuration can be applied either combined with
the system or NX authentication.
Important
When multi-node support is activated, the NX administrator needs to ensure that the system
account for the NX user is present also on all the node hosts.
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