syslog.conf(5) - NetBSD Manual Pages

SYSLOG.CONF(5)            NetBSD File Formats Manual            SYSLOG.CONF(5)


NAME
syslog.conf - syslogd(8) configuration file
DESCRIPTION
The syslog.conf file is the configuration file for the syslogd(8) pro- gram. It consists of lines with two fields: the selector field which specifies the types of messages and priorities to which the line applies, and an action field which specifies the action to be taken if a message syslogd(8) receives matches the selection criteria. The selector field is separated from the action field by one or more tab characters. The Selectors function are encoded as a facility, a period (`.'), and a level, with no intervening white-space. Both the facility and the level are case insensitive. The facility describes the part of the system generating the message, and is one of the following keywords: auth, authpriv, cron, ftp, daemon, kern, lpr, mail, mark, news, syslog, user, uucp and local0 through local7. These keywords (with the exception of mark) correspond to the similar ``LOG_'' values specified to the openlog(3) and syslog(3) library routines. The level describes the severity of the message, and is a keyword from the following ordered list (higher to lower): emerg, alert, crit, err, warning, notice, info and debug. These keywords correspond to the simi- lar (LOG_) values specified to the syslog(3) library routine. See syslog(3) for a further descriptions of both the facility and level keywords and their significance. If a received message matches the specified facility and is of the speci- fied level (or a higher level), the action specified in the action field will be taken. Multiple selectors may be specified for a single action by separating them with semicolon (`;') characters. It is important to note, however, that each selector can modify the ones preceding it. Multiple facilities may be specified for a single level by separating them with comma (`,') characters. An asterisk (`*') can be used to specify all facilities or all levels. The special facility ``mark'' receives a message at priority ``info'' every 20 minutes (see syslogd(8)). This is not enabled by a facility field containing an asterisk. The special level ``none'' disables a particular facility. The action field of each line specifies the action to be taken when the selector field selects a message. There are four forms: · A pathname (beginning with a leading slash). Selected messages are appended to the file. · A hostname (preceded by an at (`@') sign). Selected messages are forwarded to the syslogd(8) program on the named host. · A comma separated list of users. Selected messages are written to those users if they are logged in. · An asterisk. Selected messages are written to all logged-in users. Blank lines and lines whose first non-blank character is a hash (`#') character are ignored.
FILES
/etc/syslog.conf The syslogd(8) configuration file.
EXAMPLES
A configuration file might appear as follows: # Log all kernel messages, authentication messages of # level notice or higher and anything of level err or # higher to the console. # Don't log private authentication messages! *.err;kern.*;auth.notice;authpriv.none /dev/console # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none /var/log/messages # The authpriv file has restricted access. authpriv.* /var/log/secure # Log all the mail messages in one place. mail.* /var/log/maillog # Everybody gets emergency messages, plus log them on another # machine. *.emerg * *.emerg @arpa.berkeley.edu # Root and Eric get alert and higher messages. *.alert root,eric # Save mail and news errors of level err and higher in a # special file. mail,news.err /var/log/spoolerr
SEE ALSO
syslog(3), syslogd(8)
HISTORY
The syslog.conf file appeared in 4.3BSD, along with syslogd(8).
BUGS
The effects of multiple selectors are sometimes not intuitive. For exam- ple ``mail.crit;*.err'' will select ``mail'' facility messages at the level of ``err'' or higher, not at the level of ``crit'' or higher. NetBSD 2.1 June 9, 1993 NetBSD 2.1

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