NAME

vnu-server – Standalone web server of the Nu Html Checker

SYNOPSIS

java -cp ~/vnu.jar -D[property=value]... nu.validator.servlet.Main [port]

vnu-runtime-image/bin/java -D[property=value]... nu.validator.servlet.Main [port]

vnu-runtime-image\bin\java.exe -D[property=value]... nu.validator.servlet.Main [port]

DESCRIPTION

vnu-server is the standalone web server of the Nu Html Checker. It uses a built-in Jetty server. Once the server is launched you can access it at http://0.0.0.0:8888 in a browser.

[!WARNING] Future checker releases will bind by default to the address 127.0.0.1. Your checker deployment might become unreachable unless you use the nu.validator.servlet.bind-address system property to bind the checker to a different address:

When you open http://0.0.0.0:8888 (or whatever URL corresponds to the nu.validator.servlet.bind-address value you’re using), you’ll see a form similar to validator.w3.org/nu that allows you to enter the URL of an HTML document, CSS stylesheet, or SVG image, and have the results of checking that resource displayed in the browser.

OPTIONS

port

Port number at which the server is reachable.
Default: 8888

PROPERTIES

nu.validator.servlet.bind-address=ip_addess

Binds the validator service to the specified IP address.
default: 0.0.0.0 [causes the checker to listen on all interfaces]
possible values: The IP address of any network interface

example: nu.validator.servlet.bind-address=127.0.0.1

nu.validator.servlet.connection-timeout=timeout

Specifies the connection timeout.
default: 5000
possible values: number of milliseconds

example: nu.validator.servlet.connection-timeout=5000

nu.validator.servlet.socket-timeout=timeout

Specifies the socket timeout.
default: 5000
possible values: number of milliseconds

example: nu.validator.servlet.socket-timeout=5000

EXAMPLES

Start a vnu server accessible at http://128.30.52.73:8888.

java -cp ~/vnu.jar -Dnu.validator.servlet.bind-address=128.30.52.73 nu.validator.servlet.Main 8888

vnu-runtime-image/bin/java -Dnu.validator.servlet.bind-address=128.30.52.73 nu.validator.servlet.Main 8888

vnu-runtime-image\bin\java.exe -Dnu.validator.servlet.bind-address=128.30.52.73 nu.validator.servlet.Main 8888

NOTES

If you get a StackOverflowError error when using the checker, try adjusting the thread stack size by providing the -Xss option to java:

  java -Xss512k -cp ~/vnu.jar nu.validator.servlet.Main 8888

  vnu-runtime-image/bin/java -Xss512k -m vnu/nu.validator.servlet.Main 8888

SEE ALSO

vnu-client(1), vnu(1)