Remove 'norecurse' flag in dns tests.

dnsmasq 2.79 introduced a change to respond to all norecurse queries with ServFail. This is to prevent cache snooping where an adversary can figure out if a particular hostname has been looked up or not. These tests do not need the norecurse flag, hence removing it.

Remove 'norecurse' flag in dns tests.
19e1fcc2 · Pavithra Ramesh · 8c0542dc · 19e1fcc2
Commit 19e1fcc2 authored Dec 03, 2018 by Pavithra Ramesh
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dns_common.go test/e2e/network/dns_common.go +2 -2

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--- a/test/e2e/network/dns_common.go
+++ b/test/e2e/network/dns_common.go
@@ -22,9 +22,9 @@ import (
 	"strings"
 	"time"
+	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/labels"
 	"k8s.io/apimachinery/pkg/util/intstr"
@@ -494,7 +494,7 @@ func createProbeCommand(namesToResolve []string, hostEntries []string, ptrLookup
 // createTargetedProbeCommand returns a command line that performs a DNS lookup for a specific record type
 func createTargetedProbeCommand(nameToResolve string, lookup string, fileNamePrefix string) (string, string) {
 	fileName := fmt.Sprintf("%s_udp@%s", fileNamePrefix, nameToResolve)
-	probeCmd := fmt.Sprintf("dig +short +tries=12 +norecurse %s %s > /results/%s", nameToResolve, lookup, fileName)
+	probeCmd := fmt.Sprintf("dig +short +tries=12 %s %s > /results/%s", nameToResolve, lookup, fileName)
 	return probeCmd, fileName
 }