File Size Checking

File Size Checking is an Enhanced Service.

Each time Red Alert retrieves a file from a Web server (4 times per hour), it can check whether the file's size has changed since the previous time it was retrieved. Note that any file may be served by a Web server; it need not be a traditional HTML-encoded Web page.

You may choose to be notified when the file size changes. This is useful for monitoring for new additions to an error log, for example. It can also be used to alert you about modification or corruption of a Web page or other file whose contents are not intended to change often.

Or you may choose to be notified when the file size has not changed since the last time Red Alert retrieved it. This is useful for monitoring for the death or slowness of any round-the-clock process which logs frequent messages to a certain file when it is working properly.


How to Use

To activate this service for a device, follow the EDIT link in that device's entry on your Account Summary Page, and specify whether you wish to be notified when the file size does change or does not change.

To deactivate this service, follow the EDIT link in the device's entry on your Account Summary Page, and indicate on the editing form that File Size Checking is not to be performed.