Clarify ALLOW-AXFR-FROM.

diff --git a/docs/markdown/authoritative/domainmetadata.md b/docs/markdown/authoritative/domainmetadata.md
index 0252c9224881d5c597788f3f63c6ff099a280632..694e7e6aec26cc5137da4dc9d970de04d95c8329 100644 (file)
--- a/docs/markdown/authoritative/domainmetadata.md
+++ b/docs/markdown/authoritative/domainmetadata.md
@@ -22,6 +22,12 @@ insert into domainmetadata (domain_id, kind, content) values (7,'ALLOW-AXFR-FROM
 insert into domainmetadata (domain_id, kind, content) values (7,'ALLOW-AXFR-FROM','2001:db8::/48');
 ```
 
+To dissallow all IP's, except those explicitly allowed by domainmetadata records, add 
+
+```
+allow-axfr-ips=
+``` 
+
 ## AXFR-SOURCE
 The IP address to use as a source address for sending AXFR requests.