# Log all kernel messages to the console.
# Logging much else clutters up the screen.
kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;authpriv.none;cron.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
# Log cron stuff
cron.* /var/log/cron
# Everybody gets emergency messages
*.emerg *
# Save news errors of level crit and higher in a special file.
uucp,news.crit /var/log/spooler
# Save boot messages also to boot.log
local7.* /var/log/boot.log
3：日志服务的进程和服务
3.1 服务名 syslog
3.2 进程 syslogd
3.3 重读配置文件 service syslog 或 /usr/bin/killall –HUP syslogd
4:相关日志文件路径
/var/log/*.*
二：日志服务器端的配置
1：修改配置文件/etc/sysconfig/syslog
# Options to syslogd
# -m 0 disables 'MARK' messages.
# -r enables logging from remote machines
# -x disables DNS lookups on messages recieved with -r
# See syslogd(8) for more details
SYSLOGD_OPTIONS=" -x -m 0" 修改为 SYSLOGD_OPTIONS="-r -x -m 0"
# Options to klogd
# -2 prints all kernel oops messages twice; once for klogd to decode, and
# once for processing with 'ksymoops'
# -x disables all klogd processing of oops messages entirely
# See klogd(8) for more details
KLOGD_OPTIONS="-x"
#
SYSLOG_UMASK=077
# set this to a umask value to use for all log files as in umask(1).
# By default, all permissions are removed for "group" and "other".
2:修改文件syslog 之后
2.1 重启syslog服务
Service syslog restart