SYSLOGD(8)

NAME
syslogd - Syslog server

SYNOPSIS
syslogd [OPTION...]

DESCRIPTION
Log system messages.

-4, --ipv4
    restrict to IPv4 transport (default)

-6, --ipv6
    restrict to IPv6 transport

-a SOCKET
    add unix socket to listen to (up to 19)

-b, --bind=ADDR
    bind listener to this address/name

-B, --bind-port=PORT
    bind listener to this port

-d, --debug
    print debug information (implies --no-detach)

-D, --rcdir=DIR
    override configuration directory (default: /usr/local/etc/syslog.d)

-f, --rcfile=FILE
    override configuration file (default: /usr/local/etc/syslog.conf)

-h, --hop
    forward messages from remote hosts

--ipany
    allow transport with IPv4 and IPv6

-l HOSTLIST
    log hosts in HOSTLIST by their hostname

-m, --mark=INTVL
    specify timestamp interval in minutes (0 for no timestamping)

--no-forward
    do not forward any messages (overrides --hop)

--no-klog
    do not listen to kernel log device /proc/kmsg

--no-unixaf
    do not listen on unix domain sockets (overrides -a and -p)

-n, --no-detach
    do not enter daemon mode

-p, --socket=FILE
    override default unix domain socket /dev/log

-P, --pidfile=FILE
    override pidfile (default: /usr/local/var/run/syslog.pid)

-r, --inet
    receive remote messages via internet domain socket

-s DOMAINLIST
    list of domains which should be stripped from the FQDN of hosts before logging their name

-S, --sync
    force a file sync on every line

-T, --local-time
    set local time on received messages

-?, --help
    give this help list

--usage
    give a short usage message

-V, --version
    print program version

Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

AUTHOR
Written by many authors.

REPORTING BUGS
Report bugs to <bug-inetutils@gnu.org>.

COPYRIGHT
Copyright © 2026 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
logger(1)

The full documentation for syslogd is maintained as a Texinfo manual. If the info and syslogd programs are properly installed at your site, the command

    info syslogd

should give you access to the complete manual.