Chapter 26 – Maintaining The Router

System Logs

Figure 230: System Logs

System logs are records of activities that have occurred on the router, sorted into specific categories. System logs can be invaluable when debugging configuration changes. As such, most of your use of the logs will be simply in viewing them.

Syslog Factory Defaults

Although new logs can be created (and the type of information saved in existing logs changed) the factory defaults are as follows:

messages – This log file catches a wide variety of generic information excluding authentication, cron and mail messages. This should be the first log you inspect when starting to debug a problem.

syslog – This log file catches all information with the exception of authentications. Syslog contains all that messages contains, and more. Examine this log if you can not find relevant information in messages.

auth.log – This log file catches authentication requests. View auth.log when you are trying to debug a problem in which a user is not able to sign on to a service (such as web management or ssh).

critical – This log catches reports of critical failures. There should never be any messages in this log. Your RuggedCom support representative may ask you to inspect this file.

kern.log – This log contains messages issued by the kernel (the most central part of the operating system). This log always displays messages issued at boot time, and should rarely be added to after that. Your RuggedCom support representative may ask you to inspect this file.

cron.log (initially disabled) – This log file contains messages from the cron systems notifying of tasks started through cron. Your RuggedCom support representative may ask you to enable and inspect this log.

daemon.log (initially disabled) – This log file contains messages from daemons (programs that run continuously in the background). Your RuggedCom support representative may ask you to enable and inspect this log.

RuggedCom

257

Page 259
Image 259
RuggedCom RX1100, RX1000 manual System Logs, Syslog Factory Defaults