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Internet
Services Monitor - allows you to monitor multiple
servers running on the Internet. It allows a webmaster
to make sure that his or her web sites are constantly
running. It allows a system administrator to probe
any TCP port to make sure that critical services
such as the Domain Name Service (DNS), FTP servers,
BootP servers, Mail servers, and Web servers are
responding. Additionally it allows monitoring of
URLs to make sure that they contain certain text
or that the size returned exceeds some preconfigured
size. For FTP services ISM allows checking for the
existance of a file as well to make sure that the
size of the file is appropriate.
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