1-19Step 2: Create a subdirectory named Device under directory /var/log/, and create file info.log underthe Device directory to save logs of Device.# mkdir /var/log/Device# touch /var/log/Device/info.logStep 3: Edit file /etc/syslog.conf and add the following contents.# Device configuration messageslocal5.info /var/log/Device/info.logIn the above configuration, local5 is the name of the logging facility used by the log host to receive logs.info is the information level. The Linux system will record the log information with severity level equal toor higher than informational to file /var/log/Device/info.log.Be aware of the following issues while editing file /etc/syslog.conf:z Comments must be on a separate line and begin with the # sign.z No redundant spaces are allowed after the file name.z The logging facility name and the information level specified in the /etc/syslog.conf file must beidentical to those configured on the device using the info-center loghost and info-center sourcecommands; otherwise the log information may not be output properly to the log host.Step 4: After log file info.log is created and file /etc/syslog.conf is modified, you need to issue thefollowing commands to display the process ID of syslogd, kill the syslogd process, and restartsyslogd using the -r option to make the modified configuration take effect.# ps -ae | grep syslogd147# kill -9 147# syslogd -r &Ensure that the syslogd process is started with the -r option on a Linux log host.After the above configurations, the system will be able to record log information into the log file.Outputting Log Information to the ConsoleNetwork requirementsz Log information with a severity higher than informational will be output to the console;z The source modules are ARP and IP.
