SQL Comes to Nmap: Power and Convenience
nmapsql's usefulness is hard to appreciate when run infrequently on one or two targets. It's in large environments with multiple subnets and dozens of targets where nmapsql really shines. The simplest deployment, of course, is where nmapsql and the MySQL server reside on the same host, such as a laptop a consultant carries from network to network. Because most networks are firewalled and use RFC 1918 addressing, duplicate IP addresses in the targets table is highly possible with a single laptop in roving environments. In these cases, you should unload the data and use a fresh database for each new environment.
nmapsql lends itself to other deployment scenarios: mid-sized environments where multiple scanners from different subnets log back to a single MySQL server and large environments where multiple self-contained (MySQL and nmapsql on the same box) systems do their local scanning and logging. In both these environments, duplicate RFC 1918 addresses are unlikely. However, because of the lag between scanning/logging locally and collecting to the central server, the data isn't in real time. These are two situations where the scanner ID is useful to separate data.
Security practitioners—and I must admit, some black hats—appreciate nmapsql's functionality, as it fulfills a great need. The project's immediate goals are to allow users to set nmapsql-specific options from inside nmapfe, the Nmap front end, and to build a reporting front end with PHP so end users do not have to enter queries manually in MySQL. Both of these currently are under development.
Looking further, there are plans to integrate the results of Nessus vulnerability scans into the same database, creating a single console for port scan vulnerability assessment results. Toward that goal, nmapsql's Web site currently has a simple parser that loads result files created from the Nessus client.
Hasnain Atique (email@example.com) lives in sunny Singapore with his wife and three-year-old daughter. When he's not watching Harry Potter with his daughter, he tries to be the lord of the pings and occasionally succeeds.
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