Information on the status of Natural Development (NDV) Servers can be obtained using the ndvping command line tool. This tool is available on Windows, Linux and UNIX platforms except HP-UX. Entering ndvping in the command line without parameters will provide you the online documentation.

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Syntax and Parameters

Syntax

ndvping [[host] port [ssl]]

Parameters

Parameter	Description
host	The host name or IP address where the NDV server is running.
port	The port the NDV server is listening to.
ssl	To be specified if the server runs under control of SSL/TLS.

Return Values

Return Value	Description
0	The NDV server is alive.
1	The server is not responding. Possible reasons: The server does not run under control of SSL/TLS (but the ssl option has been specified). It is not necessarily an NDV server. The NDV server is in an inconsistent state.
2	Host not found or port is not in use.
3	Connected to server but invalid data returned. Possible reasons: The server does run under control of SSL/TLS (but the ssl option has not been specified). It is not necessarily an NDV server. The NDV server is in an inconsistent state.

Examples

NDV ping for localhost

ndvping 4711

NDV ping for a host with a specific name

ndvping myhost 4711

Where myhost represents the host name.

NDV ping for a specified IP address

ndvping 193.26.194.92 4711

NDV ping for a host with a specific name using SSL

ndvping myhost 9143 ssl 

Where myhost represents the host name.