followed by an equals sign ("="), followed by the option
value. An option can be of type string, of type integer, or of
type boolean. The value of a boolean option can be denoted with
- either true or false (so not yes, no, on, off, 1, or 0); all
- booleans default to false unless specified otherwise; no value
- may be quoted (always enter it directly); for a string option,
+ either true or false (so not yes, no, on, off, 1, or 0). All
+ booleans default to false unless specified otherwise. No value
+ may be quoted (always enter it directly). For a string option,
leading whitespace is stripped (but trailing whitespace is not).
</para>
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>oldstyle</option></term>
+ <listitem>
+ <para>
+ Optional; boolean
+ </para>
+ <para>
+ If this option is set to true, nbd-server will export all
+ exports on a separate port with the old (pre-2.9.17)
+ handshake protocol. In that case, the 'port' option for
+ individual exports is mandatory.
+ </para>
+ <para>
+ If the option is set to false, the 'port' option for
+ individual exports is optional (and will be ignored if
+ specified). The server will only export devices on the
+ standard port.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><option>listenaddr</option></term>
+ <listitem>
+ <para>
+ Optional; string
+ </para>
+ <para>If this option is set, it should contain the local IP
+ address on which we should listen to
+ <command>nbd-client</command>(8) connections. If it is not
+ set, <command>nbd-server</command> will listen to all
+ local IPv4 and IPv6 addresses. To limit to IPv6, specify the
+ address as "::". To limit to IPv4, specify as "0.0.0.0". It
+ is not possible to specify more than one IP address
+ here.</para>
+ </listitem>
+ </varlistentry
</variablelist>
</refsect1>
<refsect1>
<varlistentry>
<term>listenaddr</term>
<listitem>
- <para>Optional; string</para>
- <para>If this option is set, it should contain the local IP
- address on which we should listen to
- <command>nbd-client</command>(8) connections. If it is not
- set, <command>nbd-server</command> will listen to all
- local IPv4 and IPv6 addresses. To limit to IPv6, specify the
- address as "::". To limit to IPv4, specify as "0.0.0.0". It
- is not possible to specify more than one IP address
- here.</para>
+ <para>
+ Optional; string
+ </para>
+ <para>
+ If the 'oldstyle' global parameter is specified, works
+ similarly to the global listenaddr parameter, but for the
+ individual port of this particular export. If the 'oldstyle'
+ parameter is not set, this parameter is ignored.
+ </para>
</listitem>
</varlistentry>
<varlistentry>
<varlistentry>
<term><option>port</option></term>
<listitem>
- <para>Required; integer.</para>
+ <para>Required if 'oldstyle' global parameter is set; integer.</para>
<para>
The port on which this export is to be served. Currently
it is not possible to export multiple block devices on the