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Terminal Setup
IT31 Services Menu
Services Setup Screen
Options on the Services set-up menu can be used to
enable or disable various services. You may require
these if you are setting up remote connections. See
“Remote Connections” on page 20
. Note that by
default only NTP is enabled.
Note: Before enabling any service, consider any
associated security risks, which will depend on the
network the terminal is installed in.
Telnet
Enable this to run a shell on the terminal from a remote computer. This
needs to be enabled if the development environment is being used.
The Telnet service listens on port 23/TCP.
UPnP
Enable this if the terminal is to run a Universal Plug and Play service.
This allows other computers on the network to automatically discover
the terminal and to obtain its IP address.
NTP
Enable this if the terminal is to acquire its time and date using the
Network Time Protocol. If enabled, the terminal will try to connect to the
default
pool.ntp.org
server on the Internet. The NTP service uses port
123/UDP to connect to the server. For NTP to work this port must not
be blocked.
SSH
Enable this to run a Secure Shell on the terminal, which allows remote
users to log in to the terminal’s shell securely. SSH provides a secure
alternative to TELNET and does not transmit passwords in plain text. A
SSH client program is required on the remote computer.
The SSH service listens on port 22/TCP.
FTP
Enable this to run an FTP server on the terminal allowing files to be
transferred by the remote computer.
The FTP service is listening on port 21/TCP.
VNC
Enable this if you wish to control the terminal from a remote computer.
The remote computer will need to run a VNC client program, such as
UltraVNC Viewer. Once connected, the display on the terminal can
be viewed on the remote PC and the keypad on the terminal can be
operated remotely.
The VNC service listens on port 5900/TCP.
AssistIT
Enable this for Grosvenor’s comprehensive remote support feature.
The AssistIT service uses port 5222/TCP to connect to the server and
port 7777/TCP for VNC, Telnet and LogView data. For AssistIT to work
fully, these ports must not be blocked.
