# org.freedesktop.LogControl1(5) - man - phpMan

[ORG.FREEDESKTOP.LOGCONTROL1(5)](https://www.chedong.com/phpMan.php/man/ORG.FREEDESKTOP.LOGCONTROL1/5/markdown)       org.freedesktop.LogControl1      [ORG.FREEDESKTOP.LOGCONTROL1(5)](https://www.chedong.com/phpMan.php/man/ORG.FREEDESKTOP.LOGCONTROL1/5/markdown)



## NAME
       org.freedesktop.LogControl1 - D-Bus interface to query and set logging configuration

## INTRODUCTION
       org.freedesktop.LogControl1 is a generic interface that is intended to be used by any daemon
       which allows the log level and target to be set over D-Bus. It is implemented by various
       daemons that are part of the [**systemd**(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown) suite.

       It is assumed that those settings are global for the whole program, so a fixed object path is
       used. The interface should always be available under the path /org/freedesktop/LogControl1.

## DESCRIPTION
       The following interface is exposed:

           node /org/freedesktop/LogControl1 {
             interface org.freedesktop.LogControl1 {
               properties:
                 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
                 @org.freedesktop.systemd1.Privileged("true")
                 readwrite s LogLevel = '...';
                 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
                 @org.freedesktop.systemd1.Privileged("true")
                 readwrite s LogTarget = '...';
                 @org.freedesktop.DBus.Property.EmitsChangedSignal("false")
                 readonly s SyslogIdentifier = '...';
             };
             interface org.freedesktop.DBus.Peer { ... };
             interface org.freedesktop.DBus.Introspectable { ... };
             interface org.freedesktop.DBus.Properties { ... };
           };






### Properties
       _LogLevel_ describes the [**syslog**(3)](https://www.chedong.com/phpMan.php/man/syslog/3/markdown)-style log-level, and should be one of "emerg", "alert",
       "crit", "err", "warning", "notice", "info", "debug", in order of increasing verbosity.

       _LogTarget_ describes the log target (mechanism). It should be one of "console" (log to the
       console or standard output), "kmsg" (log to the kernel ring buffer), "journal" (log to the
       journal natively, see [**systemd-journald.service**(8)](https://www.chedong.com/phpMan.php/man/systemd-journald.service/8/markdown)), "syslog" (log using the [**syslog**(3)](https://www.chedong.com/phpMan.php/man/syslog/3/markdown) call).

       Those two properties are writable, so they may be set by sufficiently privileged users.

       _SyslogIdentifier_ is a read-only property that shows the "syslog identifier". It is a short
       string that identifies the program that is the source of log messages that is passed to the
       [**syslog**(3)](https://www.chedong.com/phpMan.php/man/syslog/3/markdown) call.

## TOOLS
       **journalctl** option **-p**/**--priority=** may be used to filter log messages by log level, option
### -t --identifier=
       "_TRANSPORT=syslog", "_TRANSPORT=journal", and "_TRANSPORT=kernel" may be used to filter
       messages by the mechanism through which they reached **systemd-journald**.

       **systemctl** **log-level** and **systemctl** **log-target** verbs may be used to query and set the _LogLevel_
       and _LogTarget_ properties of the service manager.  **systemctl** **service-log-level** and **systemctl**
       **service-log-target** may similarly be used for individual services. (Services must have the
       _BusName=_ property set and must implement the interface described here. See [**systemd.service**(5)](https://www.chedong.com/phpMan.php/man/systemd.service/5/markdown)
       for details about _BusName=_.)

## SEE ALSO
       [**systemd**(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown), [**journalctl**(1)](https://www.chedong.com/phpMan.php/man/journalctl/1/markdown), [**systemctl**(1)](https://www.chedong.com/phpMan.php/man/systemctl/1/markdown), [**systemd.service**(5)](https://www.chedong.com/phpMan.php/man/systemd.service/5/markdown), [**syslog**(3)](https://www.chedong.com/phpMan.php/man/syslog/3/markdown)



systemd 249                                                           [ORG.FREEDESKTOP.LOGCONTROL1(5)](https://www.chedong.com/phpMan.php/man/ORG.FREEDESKTOP.LOGCONTROL1/5/markdown)