SYSLOG-NG(8)SYSLOG-NG(8)NAMEsyslog-ng - logs system messages
SYNOPSIS
NOTE: This file is not up to date. Please refer to the documentation in
/usr/share/doc/packages/syslog-ng/.
syslog-ng [ -dFsvV ] [ -f <config-filename> ] [ -p <pid-filename> ] [
-C <chroot-dir> ] [ -u <user> ] [ -g <group> ] [ -a <log-socket> ]
DESCRIPTIONsyslog-ng reads and logs messages to the system console, log files,
other machines and/or users as specified by its configuration file.
The configuration file is read at startup and is reread after receipt
of a hangup (HUP) signal. When reloading the configuration file, all
destination files are closed and reopened as appropriate. For more
information about the configuration file, see syslog-ng.conf(5).
Typically messages are sent to syslog-ng via a Unix domain socket
(/dev/log) or via UDP, to port 514 or to whatever syslog/udp is defined
to be in /etc/services. To receieve messages from the kernel,
/dev/klog is opened for reading.
Messages sent to syslog-ng should be an entire line, prefixed by a pri‐
ority code in between '<' and '>'. Definititions of the recognised
values can be found in the include file <sys/syslog.h>.
syslog-ng can be configured to pass messages on to other syslog-ng's
and when doing so, it sends the message on with the priority as a pre‐
fix.
It is not necessary to terminate a message with a line feed or carriage
return.
OPTIONS-C <directory>, --chroot=<directory>
Chroot to directory.
-d, --debug
Set "debug mode". Prints out various messages to aid in debug‐
ging and stops it from becoming a daemon. To activate debugging
in the yacc parser, either use this option twice or combine with
-v.
-F, --foreground
Don't fork into background.
-f <filename>, --cfgfile=<filename>
Instead of reading the normal /etc/syslog-ng/syslog-ng.conf file
for configuration information, use the filename given instead.
-g <group>, --group=<group>
Switch to group.
-p <filename>, --pidfile=<filename>
Write the current PID information to the specified file.
Defaults to /var/run/syslog-ng.pid.
-s, --syntax-only
Only read and parse the configuration file. See also the option
-f.
-u <user>, --group=<user>
Switch to user.
-v, --verbose
Enable verbose mode. Process will not become a daemon. Prints
out fewer messages, compared to -d.
-V, --version
Print the version number.
-a, --add-socket=<path>
SUSE LINUX extension: Add an additional (chroot) log socket with
same type and to the same log source group as /dev/log.
DIAGNOSTICS
It is expected that syslog-ng will run as root, however, if not listen‐
ing on a privileged port and owns its log directories, etc, it might
run also as a non-root user.
SEE ALSO
/usr/share/doc/packages/syslog-ng/ syslog-ng.conf(5), logger(1), sys‐
log(2), syslog(3), services(5), syslog.conf(5), klogd(8), syslogd(8),
sysklogd(8)FILES
/etc/syslog-ng/syslog-ng.conf
Configuration file for syslog-ng. See syslog-ng.conf(5) for
more information.
/var/run/syslog-ng.pid
The file containing the process id of syslog-ng.
BUGS
If you find any, please send email to the syslog-ng mailing list at
syslog-ng@lists.balabit.hu
SYSLOG-NG(8)
