Answer / sudeep

Name of the main system log is "messages" and path is
/var/log/messages

Answer / krishna prasad m

/var/log/messages system log messages can be seen here
/var/log/dmesg Kernel boot log messages can view

Answer / amit kumar ghosh

There are Three centralized loggin demons
1)syslogd
2)klogd
3)auditd

klogd:- collect log file created by the Kernel
syslogd:- Collect log file created by the system
auditd:- Collect log file created by the SELinux

After collecting the log system store logs on different location
/var/log/dmesg:- Created at boot time, by kernel
/var/log/messages:- standard system error message,
/var/log/secure:- authentication related log
/var/log/maillog:- Mial related log
/var/log/audit/audit.log:-Selinux related log

We can redirect the log by configuring
/etc/sysconfig/syslog
/etc/syslog.conf

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