Lisa LCD
22
Enabling the use of the proxy server
The use of a proxy server can be enabled using the respective command (see
) via
one of the methods available to send commands to the Lisa (see
Controlling the Lisa with commands
).
Alternatively, the use of a proxy server can be enabled via the setup menu (see
Proxy server with authentication
The Lisa only supports basic authentication with the proxy server. For basic authentication, the
username and password are added as part of the proxy URL which is programmed in the device (e.g.
http://username:pass@server:port)
. See
for more information how basic
authentication is supported by the Lisa.
Other authentication protocols, such as NTLM (Microsoft proprietary) are
not
supported. You can find out
whether you are dealing with a server requiring NTLM authentication, by investigating the
logs. When the device tries to connect, the proxy server will respond with HTTP error
407. The HTTP response also contains a header indicating the type of authentication protocol used.
Below, part of a HTTP proxy response, requiring NTLM:
HTTP/1.0 407 Proxy Authorization Required
Proxy-Authenticate: Negotiate
Proxy-Authenticate: NTLM
As mentioned above, Streamit devices do not support NTLM, but only basic authentication. Some proxy
servers can be configured to fall back to basic authentication. Configuration options for the different proxy
servers are beyond the scope of this manual.
Remote monitoring data via proxy server
The Lisa will use the HTTP CONNECT method for the remote monitoring when the use of a proxy server
is enabled. This requests from the proxy a tunnel between the Lisa and the destination server. Some
proxy servers allow such tunnels only on specific ports. You need to verify that such tunnels are allowed
by the proxy server for the port that you configured for monitoring. It should be sufficient (in most cases)
for the proxy server to allow secure communication on said port.
More (non-authoritative) information on HTTP tunneling can be found on
3.9
Device configuration methods
There are several ways of configuring Lisa devices.
Via the Streamit Device portal web-interface
Using the
Via a configuration file on the SD card in the Lisa
Via the