91 lines
3.0 KiB
Plaintext
91 lines
3.0 KiB
Plaintext
FILES
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-----
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*/etc/nghttpx/nghttpx.conf*
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The default configuration file path nghttpx searches at startup.
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The configuration file path can be changed using :option:`--conf`
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option.
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Those lines which are staring ``#`` are treated as comment.
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The option name in the configuration file is the long command-line
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option name with leading ``--`` stripped (e.g., ``frontend``). Put
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``=`` between option name and value. Don't put extra leading or
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trailing spaces.
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The options which do not take argument in the command-line *take*
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argument in the configuration file. Specify ``yes`` as an argument
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(e.g., ``http2-proxy=yes``). If other string is given, it is
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ignored.
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To specify private key and certificate file which are given as
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positional arguments in commnad-line, use ``private-key-file`` and
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``certificate-file``.
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:option:`--conf` option cannot be used in the configuration file and
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will be ignored if specified.
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SIGNALS
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-------
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SIGQUIT
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Shutdown gracefully. First accept pending connections and stop
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accepting connection. After all connections are handled, nghttpx
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exits.
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SIGUSR1
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Reopen log files.
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SIGUSR2
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Fork and execute nghttpx. It will execute the binary in the same
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path with same command-line arguments and environment variables.
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After new process comes up, sending SIGQUIT to the original process
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to perform hot swapping.
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SERVER PUSH
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-----------
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nghttpx supports HTTP/2 server push in default mode. nghttpx looks
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for Link header field (`RFC 5988
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<http://tools.ietf.org/html/rfc5988>`_) in response headers from
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backend server and extracts URI-reference with parameter
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``rel=preload`` (see `preload
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<http://w3c.github.io/preload/#interoperability-with-http-link-header>`_)
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and pushes those URIs to the frontend client. Here is a sample Link
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header field to initiate server push:
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.. code-block:: http
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Link: </fonts/font.woff>; rel=preload
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Link: </css/theme.css>; rel=preload
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Currently, the following restrictions are applied for server push:
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1. URI-reference must not contain authority. If it exists, it is not
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pushed. ``/fonts/font.woff`` and ``css/theme.css`` are eligible to
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be pushed. ``https://example.org/fonts/font.woff`` and
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``//example.org/css/theme.css`` are not.
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2. The associated stream must have method "GET" or "POST". The
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associated stream's status code must be 200.
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These limitations may be loosened in the future release.
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UNIX DOMAIN SOCKET
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------------------
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nghttpx supports UNIX domain socket with a filename for both frontend
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and backend connections.
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Please note that current nghttpx implementation does not delete a
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socket with a filename. And on start up, if nghttpx detects that the
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specified socket already exists in the file system, nghttpx first
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deletes it. However, if SIGUSR2 is used to execute new binary and
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both old and new configurations use same filename, new binary does not
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delete the socket and continues to use it.
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SEE ALSO
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--------
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:manpage:`nghttp(1)`, :manpage:`nghttpd(1)`, :manpage:`h2load(1)`
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