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       systemd-journald.service, systemd-journald.socket, systemd-journald-
       dev-log.socket, systemd-journald - Journal service





       systemd-journald is a system service that collects and stores logging
       data. It creates and maintains structured, indexed journals based on
       logging information that is received from the kernel, from user
       processes via the libc syslog(3) call, from standard input and standard
       error of system services or via its native API. It will implicitly
       collect numerous metadata fields for each log messages in a secure and
       unfakeable way. See systemd.journal-fields(7) for more information
       about the collected metadata.

       Log data collected by the journal is primarily text-based but can also
       include binary data where necessary. All objects stored in the journal
       can be up to 2^64-1 bytes in size.

       By default, the journal stores log data in /run/log/journal/. Since
       /run/ is volatile, log data is lost at reboot. To make the data
       persistent, it is sufficient to create /var/log/journal/ where
       systemd-journald will then store the data.

       systemd-journald will forward all received log messages to the
       AF_UNIXSOCK_DGRAM socket /run/systemd/journal/syslog, if it exists,
       which may be used by Unix syslog daemons to process the data further.

       See journald.conf(5) for information about the configuration of this

           Request that journal data from /run/ is flushed to /var/ in order
           to make it persistent (if this is enabled). This must be used after
           /var/ is mounted, as otherwise log data from /run is never flushed
           to /var regardless of the configuration.

           Request immediate rotation of the journal files.

       A few configuration parameters from journald.conf may be overridden on
       the kernel command line:

       systemd.journald.forward_to_syslog=, systemd.journald.forward_to_kmsg=,
       systemd.journald.forward_to_console=, systemd.journald.forward_to_wall=
           Enables/disables forwarding of collected log messages to syslog,
           the kernel log buffer, the system console or wall.

           See journald.conf(5) for information about these settings.

       Journal files are, by default, owned and readable by the
       "systemd-journal" system group but are not writable. Adding a user to
       this group thus enables her/him to read the journal files.

       By default, each logged in user will get her/his own set of journal
       files in /var/log/journal/. These files will not be owned by the user,
       however, in order to avoid that the user can write to them directly.
       Instead, file system ACLs are used to ensure the user gets read access

       Additional users and groups may be granted access to journal files via
       file system access control lists (ACL). Distributions and
       administrators may choose to grant read access to all members of the
       "wheel" and "adm" system groups with a command such as the following:

           # setfacl -Rnm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/

       Note that this command will update the ACLs both for existing journal
       files and for future journal files created in the /var/log/journal/

           Configure systemd-journald behaviour. See journald.conf(5).

           systemd-journald writes entries to files in
           /run/log/journal/machine-id/ or /var/log/journal/machine-id/ with
           the ".journal" suffix. If the daemon is stopped uncleanly, or if
           the files are found to be corrupted, they are renamed using the
           ".journal~" suffix, and systemd-journald starts writing to a new
           file.  /run is used when /var/log/journal is not available, or when
           Storage=volatile is set in the journald.conf(5) configuration file.

       systemd(1), journalctl(1), journald.conf(5), systemd.journal-fields(7),
       sd-journal(3), systemd-coredump(8), setfacl(1), pydoc systemd.journal.

systemd 215                                        SYSTEMD-JOURNALD.SERVICE(8)

Czas wygenerowania: 0.00052 sek.

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