$arr_19 ), array( 3, false, $arr_20, $arr_24 ), array( 2, false, "\" />", $arr_25 ) ) ); ?> $arr_27 ), array( 3, false, $arr_28, $arr_30 ), array( 2, false, "\" />\n\n", $arr_31 ) ) ); ?> array( 2, false, false, $arr_9 ), array( 4, $arr_10, "if", $arr_245, $arr_248 ), array( 2, false, "\n", $arr_249 ) ) ); ?> rr_466 ), array( 4, $arr_467, "if", $arr_482, $arr_484 ), array( 2, false, "\n", $arr_485 ) ) ); ?> RATTLING PORTS » Linux Magazine
 

The Sysadmin’s Daily Grind: Cancerbero

RATTLING PORTS

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When ports on a host start opening and closing like window shutters in a gale, it’s time for admins to pay attention.

Last month, I took a look at some features of the new Nmap 4.00. This topic is far too interesting for just one month, however, so this month, I’ll describe Cancerbero [1], a server monitoring tool based on Nmap. The tool, which was written in Perl, leverages the power of Nmap to port scan your network devices. Cancerbero logs the results in a database and uses a small-footprint PHP front-end to make the results more readable. The benefits are obvious: I get an at-a-glance overview of open ports, and I can easily see which ports are open or closed.

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