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Manual page for SYSLOGD(8)

syslogd - log system messages


/usr/etc/syslogd [ -d ] [ -fconfigfile ] [ -m interval ]


syslogd reads and forwards system messages to the appropriate log files and/or users, depending upon the priority of a message and the system facility from which it originates. The configuration file /etc/syslog.conf (see syslog.conf.5 controls where messages are forwarded. syslogd logs a mark (timestamp) message every interval minutes (default 20) at priority LOG_INFO to the facility whose name is given as mark in the syslog.conf file.

A system message consists of a single line of text, which may be prefixed with a priority code number enclosed in angle-brackets (<>); priorities are defined in sys/syslog.h.

syslogd reads from the AF_UNIX address family socket /dev/log, from an Internet address family socket specified in /etc/services, and from the special device /dev/klog (for kernel messages).

syslogd reads the configuration file when it starts up, and again whenever it receives a HUP signal, at which time it also closes all files it has open, re-reads its configuration file, and then opens only the log files that are listed in that file. syslogd exits when it receives a TERM signal.

As it starts up, syslogd creates the file /etc/syslog.pid, if possible, containing its process ID (PID).


syslogd translates messages using the databases specified on an optional line in the syslog.conf as indicated with a translate entry.

The format of these databases is described in translate.5


Turn on debugging.
Specify an alternate configuration file.
-m interval
Specify an interval, in minutes, between mark messages.


configuration file
process ID
AF_UNIX address family datagram log socket
kernel log device
network services database


logger.1 syslog.3 syslog.conf.5 translate.5

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Created by unroff & hp-tools. © by Hans-Peter Bischof. All Rights Reserved (1997).

Last modified 21/April/97