From: Chris Hofstaedtler <chris.hofstaedtler@deduktiva.com>
Date: Tue, 18 May 2021 07:56:21 +0000 (+0200)
Subject: Treat vanished domains like they were never in the cache
X-Git-Tag: auth-4.5.0-alpha1~7^2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9c9fbf7f4960a8dd43107a93c678f42cd55541d1;p=thirdparty%2Fpdns.git

Treat vanished domains like they were never in the cache
---

diff --git a/pdns/ueberbackend.cc b/pdns/ueberbackend.cc
index d234e689b9..6a9c9ebe99 100644
--- a/pdns/ueberbackend.cc
+++ b/pdns/ueberbackend.cc
@@ -363,8 +363,9 @@ bool UeberBackend::getAuth(const DNSName &target, const QType& qtype, SOAData* s
         DNSZoneRecord zr;
         lookup(QType(QType::SOA), shorter, zoneId, nullptr);
         if (!get(zr)) {
-          g_log << Logger::Info << "Backend returned no SOA for domain '" << shorter.toLogString() << "', which it reported as existing " << endl;
-          return false;
+          // domain has somehow vanished
+          DLOG(g_log << Logger::Info << "Backend returned no SOA for domain '" << shorter.toLogString() << "', which it reported as existing " << endl);
+          continue;
         }
         if (zr.dr.d_name != shorter) {
           throw PDNSException("getAuth() returned an SOA for the wrong zone. Zone '"+zr.dr.d_name.toLogString()+"' is not equal to looked up zone '"+shorter.toLogString()+"'");