HP t530 Administrator Guide 8 - Page 34

RDP printer redirection, RDP audio redirection, USB redirection, High-level redirection, Model

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the file copy dialog finishes, but up to 10 seconds might be required depending on the device write speed and network latency. ● Only file systems supported by the thin client will be mounted. The supported file systems are FAT32, NTFS, ISO9660 (CD-ROMs), UDF (DVD-ROMs), and ext3. ● The device will be treated as a directory; common drive tasks like formatting and modification of the disk label will not be available. USB redirection of storage devices can be disabled in an individual connection's settings. If desired, you can disable mass storage redirection altogether. To do this, turn off USB redirection, and then change the registry keys as described in the following table. Registry entry root/USB/root/holdProtocolStatic root/USB/root/protocol Value to set 1 local Description Makes sure that the USBR type will not be automatically changed when a connection is set or unset Makes sure that the RDP connection does not attempt to redirect any devices to the remote session To completely disable local mounting of USB mass storage devices or to disable the redirection of USB mass storage devices but still allow other devices to redirect, in the thin client file system, delete the udev rule /etc/udev/rules.d/010_usbdrive.rules. RDP printer redirection By default, RDP has two methods of printer redirection enabled: ● USB redirection: Any USB printer plugged into the device will show up as a local printer in the remote session. The standard printer installation process must happen in the remote session if the printer is not already installed on that remote host. There are no settings to manage locally. ● High-level redirection: If either USB redirection is unavailable on the remote host or the printer is a parallel or serial printer, use high-level redirection. Configure the printer to use a local printer spooler, and the RDP client automatically sets up a remote printer that sends print spooling commands through a virtual channel from the remote host to the thin client. A generic postscript driver is used if no driver is specified, but additional printer features might be available if the printer is set up locally with a specific Windows driver. This Windows driver must match the driver that the printer would use when locally attached to a Windows operating system. This information is usually found under Model in the printer properties. NOTE: See Serial or parallel printer configuration on page 69 for more information. RDP audio redirection By default, high-level audio redirection will redirect audio from the remote host to the thin client. Basic voice control might need to be set up, and RDP 7.1 contains a number of advanced audio redirection features that might require additional configuration. See the following notes about using audio redirection with RDP: ● RDP delivers the highest quality audio as the network bandwidth allows. RDP reduces audio quality to play on low-bandwidth connections. ● No native audio or video syncing mechanisms are available in standard RDP. Longer videos might not sync with audio. MMR or RemoteFX can resolve this issue. 22 Chapter 4 Connection types

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the
file
copy dialog
finishes,
but up to 10 seconds might be required depending on the device write speed
and network latency.
●
Only
file
systems supported by the thin client will be mounted. The supported
file
systems are FAT32,
NTFS, ISO9660 (CD-ROMs), UDF (DVD-ROMs), and ext3.
●
The device will be treated as a directory; common drive tasks like formatting and
modification
of the
disk label will not be available.
USB redirection of storage devices can be disabled in an individual connection's settings. If desired, you can
disable mass storage redirection altogether. To do this, turn
off
USB redirection, and then change the registry
keys as described in the following table.
Registry entry
Value to set
Description
root/USB/root/holdProtocolStatic
1
Makes sure that the USBR type will not be automatically
changed when a connection is set or unset
root/USB/root/protocol
local
Makes sure that the RDP connection does not attempt to
redirect any devices to the remote session
To completely disable local mounting of USB mass storage devices or to disable the redirection of USB mass
storage devices but still allow other devices to redirect, in the thin client
file
system, delete the udev
rule
/etc/udev/rules.d/010_usbdrive.rules
.
RDP printer redirection
By default, RDP has two methods of printer redirection enabled:
●
USB redirection
: Any USB printer plugged into the device will show up as a local printer in the remote
session. The standard printer installation process must happen in the remote session if the printer is not
already installed on that remote host. There are no settings to manage locally.
●
High-level redirection
: If either USB redirection is unavailable on the remote host or the printer is a
parallel or serial printer, use high-level redirection.
Configure
the printer to use a local printer spooler,
and the RDP client automatically sets up a remote printer that sends print spooling commands through
a virtual channel from the remote host to the thin client.
A generic postscript driver is used if no driver is
specified,
but additional printer features might be
available if the printer is set up locally with a
specific
Windows driver. This Windows driver must match
the driver that the printer would use when locally attached to a Windows operating system. This
information is usually found under
Model
in the printer properties.
NOTE:
See
Serial or parallel printer
configuration
on page
69
for more information.
RDP audio redirection
By default, high-level audio redirection will redirect audio from the remote host to the thin client. Basic voice
control might need to be set up, and RDP 7.1 contains a number of advanced audio redirection features that
might require additional
configuration.
See the following notes about using audio redirection with RDP:
●
RDP delivers the highest quality audio as the network bandwidth allows. RDP reduces audio quality to
play on low-bandwidth connections.
●
No native audio or video syncing mechanisms are available in standard RDP. Longer videos might not
sync with audio. MMR or RemoteFX can resolve this issue.
22
Chapter 4
Connection types