Syslog is system messaging feature
which takes system activities and
events which can be helpful for an
administrator to maintain the system
and for troubleshooting tasks.
Daemon : Syslogd
Database Files:
/etc/syslog.conf : This file contains two
different fields.
a). Selector
b). Action
a. Selector: It specifies that at which
event system report is to be generated.
It is sub-divided into two parts:
1. Facility : It specifies report
generation based on activities
in regards to user process,mail-system
,authorisation process,daemons,
scheduler facilities etc.
2. Level : It defines importance of message
system task.There are various levels such as
Emerg for panic conditions , Crit for critical
conditions , Warning messages , info for
informational messages.
b. Action: Action is nothing but a location
of the file where these messages will be
stored.
Log Files
1. /var/log/syslog : It holds boot information.
2. /var/adm/messages : It holds all system messages.
3. dmesg : It will show logs during boot.
Syslogd daemon runs microprocessor
which reads syslog.conf file and processes
as per the statement written in it , then the
output is redirected to syslogd daemon.
Comments
Post a Comment