Vector PC-Duo Technical Information download pdf (Page 22)

PC-Duo Master Guide

transient, since they go away when the TS user logs out of his/her session. In order to

keep track of transient TS Hosts, the PC-Duo Gateway will create a new Group called

"Terminal Services on <Servername>", and automatically insert transient Hosts into this

Group. They are automatically deleted from the Gateway when the TS session ends. The

main purpose of this Group is to allow security to be assigned to the Hosts and TS

sessions that belong to this Group, and to provide the correct and appropriate access to

the TS-based Host instances.

Note: PC-Duo Host for Terminal Services works on Server 2003 & Server 2008, and

requires a Gateway Server v11.3 or later.

Recording TS Hosts

Recordings are normally deleted from the Gateway database when their associated

workstation record is deleted. Transient TS Host workstation records are automatically

deleted from the Gateway when the TS user logs out of his/her session. However, to

prevent recordings of TS Hosts from being automatically deleted when the TS session

ends, the TS session recordings are reassigned to an artificial permanent workstation

record called "Recordings on <Servername>". All recordings of all TS Hosts on a given

TS server will be associated with this one record. This approach has the following

advantages:

 Recordings are not orphaned

 All recordings can be kept in one place,

 TS recordings can be kept separate from console (root Host) recordings

 Security can be configured separately for each recording.

Limitations of TS Hosts

Due to technical limitations and the nature of Terminal Services sessions, the following

Host features are not supported.

 Remote printing

 Keyboard and mouse suppression (requires kernel-based input stack intercept)

 Screen blanking (requires kernel-based support and physical display to blank)

 Peer-to-peer connections: all protocols are disabled, and the only connections that

can be made are through a configured Gateway Server

 Kernel-mode screen capture (even on Windows Server 2003, requires kernel-mode

display support)

VNC connections

PC-Duo provides remote access and remote control to computers running a standard

version of VNC (Virtual Network Computing) server. A VNC server is built into recent

versions of the Mac OS X operating system from Apple Computer, and is also available

on many versions of the Linux operating system. When properly configured, technicians

can use PC-Duo Master on Windows to connect to and take control of Mac and Linux

computers running standard VNC server.

PC-Duo currently supports peer-to-peer connections to VNC servers. Support for

Gateway-managed connections to VNC servers is expected in the next release.

See "VNC Hosts" for more information on configuring and connecting to VNC servers.

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Vector PC-Duo Technical Information Page 22