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SYSTEMD-JOURNAL-REMOTE(8) | systemd-journal-remote | SYSTEMD-JOURNAL-REMOTE(8) |
NAME¶
systemd-journal-remote - Receive journal messages over the networkSYNOPSIS¶
systemd-journal-remote [OPTIONS...]
[-o/--output=DIR| FILE] [SOURCES...]
DESCRIPTION¶
systemd-journal-remote is a command to receive serialized journal events and store them to the journal. Input streams are in the Journal Export Format[1], i.e. like the output from journalctl --output=export. For transport over the network, this serialized stream is usually carried over an HTTPS connection.SOURCES¶
Sources can be either "active" ( systemd-journal-remote requests and pulls the data), or "passive" ( systemd-journal-remote waits for a connection and then receives events pushed by the other side). systemd-journal-remote can read more than one event stream at a time. They will be interleaved in the output file. In case of "active" connections, each "source" is one stream, and in case of "passive" connections, each connection can result in a separate stream. Sockets can be configured in "accept" mode (i.e. only one connection), or "listen" mode (i.e. multiple connections, each resulting in a stream). When there are no more connections, and no more can be created (there are no listening sockets), then systemd-journal-remote will exit. Active sources can be specified in the following ways:When - is given as a positional argument, events
will be read from standard input. Other positional arguments will be treated
as filenames to open and read from.
--url=ADDRESS
With the --url=ADDRESS option,
events will be retrieved using HTTP from ADDRESS. This URL should refer
to the root of a remote systemd-journal-gatewayd(8) instance (e.g.
http://some.host:19531/ or https://some.host:19531/).
Passive sources can be specified in the following ways:
--listen-raw=ADDRESS
ADDRESS must be an address suitable for
ListenStream= (cf. systemd.socket(5)).
systemd-journal-remote will listen on this socket for connections. Each
connection is expected to be a stream of journal events.
--listen-http=ADDRESS,
--listen-https=ADDRESS
ADDRESS must be either a negative integer, in
which case it will be interpreted as the (negated) file descriptor number, or
an address suitable for ListenStream= (c.f. systemd.socket(5)).
In the first case, matching file descriptor must be inherited through
$LISTEN_FDS/ $LISTEN_PID. In the second case, an HTTP or HTTPS
server will be spawned on this port, respectively for --listen-http and
--listen-https. Currently, only POST requests to /upload with
"Content-Type: application/vnd.fdo.journal" are supported.
$LISTEN_FDS
systemd-journal-remote supports the
$LISTEN_FDS/ $LISTEN_PID protocol. Open sockets inherited
through socket activation behave like those opened with --listen-raw=
described above, unless they are specified as an argument in
--listen-http=- n or
--listen-https=-n above. In the latter case, an HTTP or
HTTPS server will be spawned using this descriptor and connections must be
made over the HTTP protocol.
SINKS¶
The location of the output journal can be specified with -o or --output=. For "active" sources, this option is required. --output=FILEWill write to this journal file. The filename must end
with .journal. The file will be created if it does not exist. If necessary
(journal file full, or corrupted), the file will be renamed following normal
journald rules and a new journal file will be created in its stead.
--output=DIR
Will create journal files underneath directory
DIR. The directory must exist. If necessary (journal files over size,
or corrupted), journal files will be rotated following normal journald rules.
Names of files underneath DIR will be generated using the rules
described below.
If --output= is not used, the output directory /var/log/journal/remote/
will be used. In case the output file is not specified, journal files will be
created underneath the selected directory. Files will be called remote-
hostname.journal, where the hostname part is the escaped
hostname of the source endpoint of the connection, or the numerical address if
the hostname cannot be determined.
In case of "active" sources, the output file name must always be given
explicitly.
OPTIONS¶
The following options are understood: --split-modeOne of none or host. For the first, only
one output journal file is used. For the latter, a separate output file is
used, based on the hostname of the other endpoint of a connection.
In case of "active" sources, the output file name must always be given
explicitly and only none is allowed.
--compress, --no-compress
Compress or not, respectively, the data in the journal
using XZ.
--seal, --no-seal
Periodically sign or not, respectively, the data in the
journal using Forward Secure Sealing.
--getter=PROG --option1 --option2
Program to invoke to retrieve data. The journal event
stream must be generated on standard output.
Examples:
-h, --help
--getter='curl "-HAccept: application/vnd.fdo.journal" https://some.host:19531/'
--getter='wget --header="Accept: application/vnd.fdo.journal" -O- https://some.host:19531/'
Print a short help text and exit.
--version
Print a short version string and exit.
EXAMPLES¶
Copy local journal events to a different journal directory:journalctl -o export | systemd-journal-remote -o /tmp/dir -
systemd-journal-remote --url http://some.host:19531/
systemd-journal-remote --url http://some.host:19531/entries?boot&follow
SEE ALSO¶
systemd-journal-upload(8), journalctl(1), systemd-journald.service(8), systemd-journal-gatewayd.service(8)journal-remote.conf(5)NOTES¶
- 1.
- Journal Export Format
systemd 230 |