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SYSTEMD-JOURNAL-GATEWAYsystemd-journal-gateSYSTEMD-JOURNAL-GATEWAYD.SERVICE(8)

NAME
       systemd-journal-gatewayd.service, systemd-journal-gatewayd.socket,
       systemd-journal-gatewayd - HTTP server for journal events

SYNOPSIS
       systemd-journal-gatewayd.service

       systemd-journal-gatewayd.socket

       /usr/lib/systemd/systemd-journal-gatewayd [OPTIONS...]

DESCRIPTION
       systemd-journal-gatewayd serves journal events over the network.
       Clients must connect using HTTP. The server listens on port 19531 by
       default. If --cert= is specified, the server expects HTTPS connections.

       The program is started by systemd(1) and expects to receive a single
       socket. Use systemctl start systemd-journal-gatewayd.socket to start
       the service, and systemctl enable systemd-journal-gatewayd.socket to
       have it started on boot.

OPTIONS
       The following options are understood:

       --help, -h
	   Prints a short help text and exits.

       --version
	   Prints a short version string and exits.

       --cert=
	   Specify the path to a file containing a server certificate in PEM
	   format. This option switches systemd-journal-gatewayd into HTTPS
	   mode and must be used together with --key=.

       --key=
	   Specify the path to a file containing a server key in PEM format
	   corresponding to the certificate specified with --cert=.

SUPPORTED URLS
       The following URLs are recognized:

       /browse
	   Interactive browsing.

       /entries[?option1&option2=value...]
	   Retrieval of events in various formats.

	   The Accept: part of the HTTP header determines the format.
	   Supported values are described below.

	   The Range: part of the HTTP header determines the range of events
	   returned. Supported values are described below.

	   GET parameters can be used to modify what events are returned.
	   Supported parameters are described below.

       /machine
	   Return a JSON structure describing the machine.

	   Example:

	       { "machine_id" : "8cf7ed9d451ea194b77a9f118f3dc446",
		 "boot_id" : "3d3c9efaf556496a9b04259ee35df7f7",
		 "hostname" : "fedora",
		 "os_pretty_name" : "Fedora 19 (Rawhide)",
		 "virtualization" : "kvm",
		 ...}

       /fields/FIELD_NAME
	   Return a list of values of this field present in the logs.

ACCEPT HEADER
       Accept: format

       Recognized formats:

       text/plain
	   The default. Plaintext syslog-like output, one line per journal
	   entry (like journalctl --output short).

       application/json
	   Entries are formatted as JSON data structures, one per line (like
	   journalctl --output json). See Journal JSON Format[1] for more
	   information.

       application/event-stream
	   Entries are formatted as JSON data structures, wrapped in a format
	   suitable for Server-Sent Events[2] (like journalctl --output
	   json-sse).

       application/vnd.fdo.journal
	   Entries are serialized into a binary (but mostly text-based) stream
	   suitable for backups and network transfer (like journalctl --output
	   export). See Journal Export Format[3] for more information.

RANGE HEADER
       Range: entries=cursor[[:num_skip]:num_entries]

       where cursor is a cursor string, num_skip is an integer, num_entries is
       an unsigned integer.

       Range defaults to all available events.

URL GET PARAMETERS
       Following parameters can be used as part of the URL:

       follow
	   wait for new events (like journalctl --follow, except that the
	   number of events returned is not limited).

       discrete
	   Test that the specified cursor refers to an entry in the journal.
	   Returns just this entry.

       boot
	   Limit events to the current boot of the system (like journalctl
	   --this--boot).

       KEY=match
	   Match journal fields. See systemd.journal-fields(7).

EXAMPLES
       Retrieve events from this boot from local journal in Journal Export
       Format[3]:

	   curl --silent -H'Accept: application/vnd.fdo.journal' \
		  'http://localhost:19531/entries?boot'

       Listen for core dumps:

	   curl 'http://localhost:19531/entries?follow&MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1'

SEE ALSO
       systemd(1), journalctl(1), systemd-journald.service(8),
       systemd.journal-fields(7),

NOTES
	1. Journal JSON Format
	   http://www.freedesktop.org/wiki/Software/systemd/json

	2. Server-Sent Events
	   https://developer.mozilla.org/en-US/docs/Server-sent_events/Using_server-sent_events

	3. Journal Export Format
	   http://www.freedesktop.org/wiki/Software/systemd/export

systemd 208				   SYSTEMD-JOURNAL-GATEWAYD.SERVICE(8)

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