This is NetMonitor, a tool designed to report DNS issues and network problems for a website. It performs a bunch of tests (ICMP, working-state, etc.) for a domain and its OCSP service. To use NetMonitor, you need: * Perl 5 ; * DBI CPAN module ; * DBD::SQLite CPAN module ; * MIME::Lite CPAN module ; * Net::Ping CPAN module ; * sqlite3 ; * the 'host' and 'whois' commands (it depends on your system) ; * OpenSSL (OCSP-capable) First of all, you will need to edit 'netmonitor.pl' and its Init() function to specify emails you want to be reached at. The html files are a non-mandatory and easy way to display log files into webpages (using iframes).