don't age the root - this was a mistranslation from 3.x to 4.x

(cherry picked from commit 03c09afecec7098a605a632606600bca2992dfaf)

diff --git a/pdns/syncres.cc b/pdns/syncres.cc
index 6f16f340653570d29154b4d46339240a71bd52ba..be2b707704cba354bf2232c2433eec90950533dc 100644 (file)
--- a/pdns/syncres.cc
+++ b/pdns/syncres.cc
@@ -1009,7 +1009,7 @@ int SyncRes::doResolveAt(NsSet &nameservers, DNSName auth, bool flawedNSSet, con
     for(vector<DNSName >::const_iterator tns=rnameservers.begin();;++tns) {
       if(tns==rnameservers.end()) {
         LOG(prefix<<qname<<": Failed to resolve via any of the "<<(unsigned int)rnameservers.size()<<" offered NS at level '"<<auth<<"'"<<endl);
-        if(auth!=DNSName() && flawedNSSet) {
+        if(!auth.isRoot() && flawedNSSet) {
           LOG(prefix<<qname<<": Ageing nameservers for level '"<<auth<<"', next query might succeed"<<endl);
 
           if(t_RC->doAgeCache(d_now.tv_sec, auth, QType::NS, 10))