Question

2. At the command prompt, type ls –l /dev/log and press Enter. What is the file type?

Which daemon on Ubuntu Server Linux uses this file and what is its purpose?

3. At the command prompt, type less /etc/rsyslog.conf and press Enter to view the configuration file for the System Log Daemon. Are there any entries that specify facilities, priorities, or log file locations? What does the last line of the file specify? Press q when finished to quit the less utility.

4. At the command prompt, type less /etc/rsyslog.d/50-default.conf and press Enter. Where do kernel messages of any priority get logged to by default? What does the – character next to the filename indicate? Press q when finished to quit the less utility.

5. At the command prompt, type tail /var/log/kern.log and press Enter. Observe the entries.

6. At the command prompt, type ls /var/log/cups and press Enter. What daemon cre- ates the log files within the /var/log/cups directory?

7. At the command prompt, type cat /etc/cron.daily/logrotate and press Enter to observe the logrotate command that is run each day.

8. At the command prompt, type less /etc/logrotate.conf and press Enter to view the configuration file for the logrotate command. How many copies of old log files are kept by default? When finished, press q to quit the less utility.

9. At the command prompt, type ls /etc/logrotate.d and press Enter. How many files are in this directory? Will entries in these files override the same entries in /etc/log- rotate.conf?

10. At the command prompt, type cat /etc/logrotate.d/cups-daemon and press Enter. How many copies of old log files are kept for the log files in the /var/log/cups directory? Will the log files be rotated if they contain no contents?

Answer 1

2. ls –l /dev/log is the symbolic link of the file. Syslogd is the daemon that uses the storing the logs.

3. Yes, there any entries that specify facilities, priorities, or log file locations.

remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional 

4. kernel messages of any priority get logged to by default under the modules.

the - character indicates the file where it is stored.

5. The entries of the /var/log/kern.log contains the entries of the Kernel's messages of any log level.

6. /var/log/cups is the regular file. cupsd creates the log.

7. It will rotate the logs everyday.

8. For 4 weeks the logs are kept.

9. There are 28 files.

10. 10 files of log files are kept. yes the logs files can be rotated if it contains no content.