получать сообщения журнала по сети (Receive journal messages over the network)
Имя (Name)
systemd-journal-remote.service, systemd-journal-remote.socket,
systemd-journal-remote - Receive journal messages over the
network
Синопсис (Synopsis)
systemd-journal-remote.service
systemd-journal-remote.socket
/usr/lib/systemd/systemd-journal-remote [OPTIONS...]
[-o/--output=DIR|FILE]
[SOURCES...]
Описание (Description)
systemd-journal-remote is a command to receive serialized journal
events and store them to journal files. Input streams are in the
Journal Export Formatjournalctl
--output=export. For transport over the network, this serialized
stream is usually carried over an HTTPS connection.
systemd-journal-remote.service is a system service that uses
systemd-journal-remote to listen for connections.
systemd-journal-remote.socket configures the network address that
systemd-journal-remote.service listens on. By default this is
port 19532. What connections are accepted and how the received
data is stored can be configured through the
journal-remote.conf(5) configuration file.
Источники (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:
[SOURCES...]
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/.
--getter='PROG [OPTIONS...]'
Program to invoke to retrieve data. The journal event stream
must be generated on standard output.
Examples:
--getter='curl "-HAccept: application/vnd.fdo.journal" https://some.host:19531/'
--getter='wget --header="Accept: application/vnd.fdo.journal" -O- 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, the server listens on
port 19532 by default, and the 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.
--key=
Takes a path to a SSL secret key file in PEM format. Defaults
to /etc/ssl/private/journal-remote.pem. This option can be
used with --listen-https=. If the path refers to an AF_UNIX
stream socket in the file system a connection is made to it
and the key read from it.
--cert=
Takes a path to a SSL certificate file in PEM format.
Defaults to /etc/ssl/certs/journal-remote.pem. This option
can be used with --listen-https=. If the path refers to an
AF_UNIX stream socket in the file system a connection is made
to it and the certificate read from it.
--trust=
Takes a path to a SSL CA certificate file in PEM format, or
all. If all is set, then certificate checking will be
disabled. Defaults to /etc/ssl/ca/trusted.pem. This option
can be used with --listen-https=. If the path refers to an
AF_UNIX stream socket in the file system a connection is made
to it and the certificate read from it.
--gnutls-log=
Takes a comma separated list of gnutls logging categories.
This option can be used with --listen-http= or
--listen-https=.
Файл журнала (Sinks)
The location of the output journal can be specified with -o or
--output=.
--output=FILE
Will 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 the case that "active" sources are given by the positional
arguments or --getter= option, the output file name must always
be given explicitly.
Параметры (Options)
The following options are understood:
--split-mode
One 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 the case that "active" sources are given by the positional
arguments or --getter= option, the output file name must
always be given explicitly and only none is allowed.
--compress [BOOL]
If this is set to "yes" then compress the data in the journal
using XZ. The default is "yes".
--seal [BOOL]
If this is set to "yes" then periodically sign the data in
the journal using Forward Secure Sealing. The default is
"no".
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
Примеры (Examples)
Copy local journal events to a different journal directory:
journalctl -o export | systemd-journal-remote -o /tmp/dir/foo.journal -
Retrieve all available events from a remote
systemd-journal-gatewayd(8) instance and store them in
/var/log/journal/remote/remote-some.host.journal:
systemd-journal-remote --url http://some.host:19531/
Retrieve current boot events and wait for new events from a
remote systemd-journal-gatewayd(8) instance, and store them in
/var/log/journal/remote/remote-some.host.journal:
systemd-journal-remote --url http://some.host:19531/entries?boot&follow
Смотри также (See also)
journal-remote.conf(5), journalctl(1),
systemd-journal-gatewayd.service(8),
systemd-journal-upload.service(8), systemd-journald.service(8)
Примечание (Note)
1. Journal Export Format
https://www.freedesktop.org/wiki/Software/systemd/export
