docs: avoid net wildcard

(vcunat modified the wording slightly)

diff --git a/daemon/README.rst b/daemon/README.rst
index c42ae12a3545e9b782eec23bc031810c90b37ea3..4efd0212d99c861287555a6024b1170fbfde0cde 100644 (file)
--- a/daemon/README.rst
+++ b/daemon/README.rst
@@ -389,6 +389,13 @@ For when listening on ``localhost`` just doesn't cut it.
             net = { '127.0.0.1', net.eth0, net.eth1.addr[1] }
             net.ipv4 = false
 
+.. warning:: On machines with multiple IP addresses avoid binding to wildcard ``0.0.0.0`` or ``::`` (see example below). Knot Resolver could answer from different IP in case the ranges overlap and client will probably refuse such a response.
+
+         .. code-block:: lua
+
+            net = { '0.0.0.0' }
+
+
 .. envvar:: net.ipv6 = true|false
 
    :return: boolean (default: true)