syslog.auth(4)syslog.auth(4)NAMEsyslog.auth - authorization file for accepting remote syslog messages
SYNOPSIS
# format: Each fully qualified host name on a separate line host‐
name.domain_name
DESCRIPTION
The /etc/syslog.auth file specifies which remote hosts are allowed to
forward syslog messages to the local host. For the sake of security,
only messages coming from remote hosts listed in the local /etc/sys‐
log.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/sys‐
log.auth. A line started with the # character is considered as a com‐
ment 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 <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
Location of the authorization file.
RELATED INFORMATION
Commands: syslogd(8), syslog(1)
System Administration delim off
syslog.auth(4)
