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Document the '*all' host discovery syntax

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dmiller 2017-08-07 15:51:28 +00:00
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docs/refguide.xml
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@ -164,6 +164,16 @@ manual. Some obscure options aren't even included here.</para>
option argument) is treated as a target host specification. The
simplest case is to specify a target IP address or hostname for scanning.</para>
<para>When a hostname is given as a target, it is
<firstterm>resolved</firstterm><indexterm><primary>DNS resolution</primary></indexterm>
via the Domain Name System (DNS) to determine the IP address to scan. If the
name resolves to more than one IP address, only the first one will be
scanned. To make Nmap scan all the resolved addresses instead of only the
first one, append <literal>*all</literal>
<indexterm><primary>*all</primary></indexterm> to the hostname like so:
<literal>example.com*all</literal>
</para>
<para>Sometimes you wish to scan a whole network of adjacent hosts. For
this, Nmap supports CIDR-style<indexterm><primary>CIDR (Classless
Inter-Domain Routing)</primary></indexterm> addressing. You can append