1SYSTEMD-JOURNAL-GATEWAYDs.ySsEtReVmIdC-Ej(o8u)rnal-gatewSaYySdT.EsMeDr-vJiOcUeRNAL-GATEWAYD.SERVICE(8)
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3
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NAME

6       systemd-journal-gatewayd.service, systemd-journal-gatewayd.socket,
7       systemd-journal-gatewayd - HTTP server for journal events
8

SYNOPSIS

10       systemd-journal-gatewayd.service
11
12       systemd-journal-gatewayd.socket
13
14       /usr/lib/systemd/systemd-journal-gatewayd [OPTIONS...]
15

DESCRIPTION

17       systemd-journal-gatewayd serves journal events over the network.
18       Clients must connect using HTTP. The server listens on port 19531 by
19       default. If --cert= is specified, the server expects HTTPS connections.
20
21       The program is started by systemd(1) and expects to receive a single
22       socket. Use systemctl start systemd-journal-gatewayd.socket to start
23       the service, and systemctl enable systemd-journal-gatewayd.socket to
24       have it started on boot.
25

OPTIONS

27       The following options are understood:
28
29       --cert=
30           Specify the path to a file containing a server certificate in PEM
31           format. This option switches systemd-journal-gatewayd into HTTPS
32           mode and must be used together with --key=.
33
34       --key=
35           Specify the path to a file containing a server key in PEM format
36           corresponding to the certificate specified with --cert=.
37
38       --trust=
39           Specify the path to a file containing a CA certificate in PEM
40           format.
41
42       -D DIR, --directory=DIR
43           Takes a directory path as argument. If specified,
44           systemd-journal-gatewayd will serve the specified journal directory
45           DIR instead of the default runtime and system journal paths.
46
47       -h, --help
48           Print a short help text and exit.
49
50       --version
51           Print a short version string and exit.
52

SUPPORTED URLS

54       The following URLs are recognized:
55
56       /browse
57           Interactive browsing.
58
59       /entries[?option1&option2=value...]
60           Retrieval of events in various formats.
61
62           The Accept: part of the HTTP header determines the format.
63           Supported values are described below.
64
65           The Range: part of the HTTP header determines the range of events
66           returned. Supported values are described below.
67
68           GET parameters can be used to modify what events are returned.
69           Supported parameters are described below.
70
71       /machine
72           Return a JSON structure describing the machine.
73
74           Example:
75
76               { "machine_id" : "8cf7ed9d451ea194b77a9f118f3dc446",
77                 "boot_id" : "3d3c9efaf556496a9b04259ee35df7f7",
78                 "hostname" : "fedora",
79                 "os_pretty_name" : "Fedora 19 (Rawhide)",
80                 "virtualization" : "kvm",
81                 ...}
82
83
84       /fields/FIELD_NAME
85           Return a list of values of this field present in the logs.
86

ACCEPT HEADER

88       Accept: format
89
90       Recognized formats:
91
92       text/plain
93           The default. Plaintext syslog-like output, one line per journal
94           entry (like journalctl --output short).
95
96       application/json
97           Entries are formatted as JSON data structures, one per line (like
98           journalctl --output json). See Journal JSON Format[1] for more
99           information.
100
101       text/event-stream
102           Entries are formatted as JSON data structures, wrapped in a format
103           suitable for Server-Sent Events[2] (like journalctl --output
104           json-sse).
105
106       application/vnd.fdo.journal
107           Entries are serialized into a binary (but mostly text-based) stream
108           suitable for backups and network transfer (like journalctl --output
109           export). See Journal Export Format[3] for more information.
110

RANGE HEADER

112       Range: entries=cursor[[:num_skip]:num_entries]
113
114       where cursor is a cursor string, num_skip is an integer, num_entries is
115       an unsigned integer.
116
117       Range defaults to all available events.
118

URL GET PARAMETERS

120       Following parameters can be used as part of the URL:
121
122       follow
123           wait for new events (like journalctl --follow, except that the
124           number of events returned is not limited).
125
126       discrete
127           Test that the specified cursor refers to an entry in the journal.
128           Returns just this entry.
129
130       boot
131           Limit events to the current boot of the system (like journalctl
132           -b).
133
134       KEY=match
135           Match journal fields. See systemd.journal-fields(7).
136

EXAMPLES

138       Retrieve events from this boot from local journal in Journal Export
139       Format[3]:
140
141           curl --silent -H'Accept: application/vnd.fdo.journal' \
142                  'http://localhost:19531/entries?boot'
143
144       Listen for core dumps:
145
146           curl 'http://localhost:19531/entries?follow&MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1'
147

SEE ALSO

149       systemd(1), journalctl(1), systemd.journal-fields(7), systemd-
150       journald.service(8), systemd-journal-remote.service(8), systemd-
151       journal-upload.service(8)
152

NOTES

154        1. Journal JSON Format
155           https://www.freedesktop.org/wiki/Software/systemd/json
156
157        2. Server-Sent Events
158           https://developer.mozilla.org/en-US/docs/Server-sent_events/Using_server-sent_events
159
160        3. Journal Export Format
161           https://www.freedesktop.org/wiki/Software/systemd/export
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165systemd 243                                SYSTEMD-JOURNAL-GATEWAYD.SERVICE(8)
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