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syslog.auth(4)						       syslog.auth(4)



NAME

  syslog.auth -	 authorization file for	accepting remote syslog	messages

SYNOPSIS

  # format:  Each fully	qualified host name on a separate line
  hostname.domain_name

DESCRIPTION

  The /etc/syslog.auth file specifies which remote hosts are allowed to	for-
  ward syslog messages to the local host.  For the sake	of security, only
  messages coming from remote hosts listed in the local	/etc/syslog.auth file
  will be logged by the	syslogd	daemon.

  If the /etc/syslog.auth file does not	exist, then messages coming from any
  host will be accepted.

  Each remote host name	should appear in a separate line in /etc/syslog.auth.
  A line started with the # character is considered as a comment and is	thus
  ignored.

  A host name must be a	complete domain	name such as trout.zk3.dec.com.	If a
  domain host name is given, it	must either appear in the local	/etc/hosts
  file or be able to be	resolved by the	local name server (BIND).

  Note that a host name	can have at most as many characters as defined by the
  MAXHOSTNAMELEN constant in <&lt;sys/param.h>, although each line in the
  /etc/syslog.auth file	can have up to 512 characters.

  The /etc/syslog.auth file must be owned by root and has a permission of
  0600.

  To invoke a new version of the /etc/syslog.auth file,	run the	following
  command (as the super	user) to initialize the	 syslogd daemon:

       kill -HUP `cat /var/run/syslog.pid`

EXAMPLES

  The following	example	provides a typical authorization file:

       # format:  Each fully qualified host name on a separate line
       c3poid.rvo.dec.com
       r2d2id.ckt.dec.com

FILES

  /etc/syslog.auth
	     Location of the authorization file.


RELATED	INFORMATION

  Commands: syslogd(8),	syslog(1)

  System Administration