document DNAME flag

diff --git a/pdns/docs/pdns.xml b/pdns/docs/pdns.xml
index 7321dc2d180164aca14a4caa5e9463b02837a097..725bfeb1747f5cfbf4c0cac6f0649d19096a14ca 100644 (file)
--- a/pdns/docs/pdns.xml
+++ b/pdns/docs/pdns.xml
@@ -16108,6 +16108,11 @@ To enable a Lua script for a particular slave zone, determine the domain_id for
            <listitem><para>
                Entropy source (like /dev/urandom).
              </para></listitem></varlistentry>
+         <varlistentry><term>experimental-dname-processing=...</term>
+           <listitem><para>
+               Synthesise CNAME records from DNAME records as required. This approximately doubles query load. Do not combine
+               with DNSSEC!
+             </para></listitem></varlistentry>
          <varlistentry><term>fancy-records=...</term>
            <listitem><para>
                Process URL and MBOXFW records. See <xref linkend="fancy-records"/>.