输出消息的类型 格式: facility.level; facility.level. 输入消息的位置
*.err;kern.notice;auth.notice /dev/sysmsg
*.err;kern.debug;daemon.notice;mail.crit /var/adm/messages
重启syslog
/etc/init.d/syslog stop
/etc/init.d/syslog start
The selector field is a semicolon-separated list of priority specifications in the following format: facility.level; facility.level.
- The facility field can contain only 16 codes:
- kern Messages generated by the kernel.
- user Messages generated by user processes.
- mail The mail system.
- daemon System daemons, such as the in.ftpd and the telnetd daemons.
- auth The authorization system, including the login and su commands.
- syslog Messages generated internally by the syslogd daemon.
- lpr The line printer spooling system, such as the lpr and lpc commands.
- news Files reserved for the USENET network news system.
- uucp (obsolete) The UNIX-to-UNIX copy (UUCP) system does not use the syslog function.
- cron The cron and at facilities, including crontab, at, and cron.
- local0-7 Eight user-defined codes.
- the level selector specifies the severity or importance of the message. Each level includes all the levels above (of a higher severity). To remember the sequence for the certification exam you can use an appropriately constructed phase like "Every alerted cardriver escapes warning notice"
- emerg 0 Panic conditions that are normally broadcast to all users
- alert 1 Conditions that should be corrected immediately, such as a corrupted system database. Only sysadmin of a particular server needs to be informed by mail or paged.
- crit 2 Warnings about critical conditions, such as hard device errors.
- err 3 Errors other than hard device errors
- warning 4 Warning messages, that generally does not interfere with normal operation.
- notice 5 Non-error conditions that might require special handling
- info 6 Purely informational messages (usually does not require any handling)
- debug 7 Messages that are normally used only when debugging a program
- none 8 Messages are not sent from the indicated facility to the selected file