Increasing and decreasing parallelism
Although the host group size customization we just learned about can help increase or decrease parallelism in full scans, it doesn't deal with the numbers of probes that are being sent out at a time. The actual parallelism flags, however, can help us deal with that!
As with many things, Nmap will attempt to automatically create the most efficient scanning groups, which is great for almost all instances. In my experience, changing the number of simultaneous probes being sent out without having a serious education in networking can result in disaster—but that's not always the case.
By increasing the value of --min-parallelism—say up to 10 or 12—you can force Nmap to scan at least that fast. Nmap will still make ...
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