Troubleshooting

When troubleshooting the ZY, it may be extremely useful to make a TELNET connection to the ZY to try to duplicate the condition by entering commands manually (see section  3.2). This provides immediate feedback and also separates the client program from the ZY (the bug may after all be in the client program). The ZY implements a watchdog timer. This timer will reset the system if processing comes to a halt for any reason. The watch dog timer keeps a log file in the root directory called REMOTE.LOG. This file logs the time and date of the reset, an index to the command that was executing during reset, and an optional source code line number. The best way to quickly view REMOTE.LOG is to use the command ``RDF REMOTE.LOG'' in a TELNET session (see RDF). The file will scroll by the telnet screen. If this file is long, it may be difficult to view the top. The most recent resets are at the bottom of the file (see section 3.8).