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merge r9303 from bhdc08: lightly document the top ports functionality, including --top-ports, and --port-ratio. Doug actually wrote this way back before we had actual top ports data. It could use expansion to describe the default behavior, changes to -F, etc.

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fyodor 2008-09-05 01:59:30 +00:00
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32
docs/refguide.xml
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@ -1417,6 +1417,17 @@ used.</para>
zombie for IP ID changes. Otherwise Nmap will use the port it
uses by default for TCP pings (80).</para>
<para>Ports can also be specified by name according to what the
port is referred to in the <filename>nmap-services</filename>. You
can even use the wildcards * and ? with the names. For example, to scan
ftp and all ports whose names begin with http, use <option>-p ftp,http*</option>.
Be careful about shell expansions and quote the argument to -p if unsure.</para>
<para>Ranges of ports can be surrounded by square brackets to indicate
ports inside that range that appear in <filename>nmap-services</filename>.
For example, the following will scan all ports in <filename>nmap-services</filename>
equal to or below 1024: <option>-p [-1024]</option>. Be careful with shell
expansions and quote the argument to -p if unsure.</para>
</listitem>
</varlistentry>
@ -1622,6 +1633,27 @@ way.</para>
instead.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>--port-ratio &lt;decimal number between 0 and 1&gt;</option>
</term>
<listitem>
<indexterm><primary>--port-ratio</primary></indexterm>
<para>Scans all ports in <filename>nmap-services</filename> file with a ratio greater than the number specified as the argument. (new format <filename>nmap-services</filename> only.)</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>--top-ports &lt;integer of 1 or greater&gt;</option>
</term>
<listitem>
<indexterm><primary>--top-ports</primary></indexterm>
<para>Scans the N highest-ratio ports found in <filename>nmap-services</filename> file. (new format <filename>nmap-services</filename> only.)</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>