Which log file would you check to troubleshoot printer issues?

To troubleshoot printer issues in a Linux environment, the log file that is most relevant is the CUPS log, which records the activity of the Common UNIX Printing System (CUPS). This system is responsible for managing print jobs, queue management, and communication with printers. Therefore, the CUPS log provides insights into print job processing, error messages related to printers, and overall printer status.

The information in the CUPS log can help in diagnosing problems like jobs that are stuck in the queue, issues with printer connectivity, or errors resulting from malformed print requests. By examining this log, one can find specific entries that indicate what went wrong during the printing process, making it an essential first step in printer troubleshooting.

Other log files mentioned do not specifically pertain to printer issues. Secure logs would focus on security-related events, while message/syslog contains general system messages that are broad in scope. Xorg.0.log is primarily concerned with the X server and graphical output, which is not directly related to printer functionality.