From: Aki Tuomi <cmouse@cmouse.fi>
Date: Fri, 27 Nov 2015 10:26:46 +0000 (+0200)
Subject: Do not cache unknown responses
X-Git-Tag: dnsdist-1.0.0-alpha1~172^2~9
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f0452891a74e99f75dd98f5b691eaf405e4b73fc;p=pdns

Do not cache unknown responses
---

diff --git a/modules/geoipbackend/geoipbackend.cc b/modules/geoipbackend/geoipbackend.cc
index 773efacd4..db3f55a11 100644
--- a/modules/geoipbackend/geoipbackend.cc
+++ b/modules/geoipbackend/geoipbackend.cc
@@ -571,6 +571,8 @@ string GeoIPBackend::queryGeoIP(const string &ip, bool v6, GeoIPQueryAttribute a
     std::transform(ret.begin(), ret.end(), ret.begin(), ::tolower);
     break;
   }
+
+  if (ret == "unknown") gl->netmask = (v6?128:32); // prevent caching
   return ret;
 }