small changes

engine/plugins/dns/apex.go

@@ -31,7 +31,7 @@ func (d *dnsApex) check(e *et.Event) error {
 		return nil
 	}
 
-	// determine which domain apex this name is a node in
+	// determine which domain apex is the parent of this name
 	var apex *dbt.Entity
 	best := len(fqdn.Name)
 	for _, name := range d.plugin.apexList.Slice() {

engine/plugins/dns/ip.go

@@ -57,7 +57,7 @@ func (d *dnsIP) check(e *et.Event) error {
 	}
 
 	if len(ips) > 0 {
-		d.process(e, fqdn.Name, ips, src)
+		d.process(e, fqdn.Name, ips)
 
 		for _, v := range ips {
 			ip, ok := v.ip.Asset.(*oamnet.IPAddress)
@@ -169,7 +169,7 @@ func (d *dnsIP) store(e *et.Event, fqdn *dbt.Entity, src *et.Source, rr []*resol
 	return ips
 }
 
-func (d *dnsIP) process(e *et.Event, name string, addrs []*relIP, src *et.Source) {
+func (d *dnsIP) process(e *et.Event, name string, addrs []*relIP) {
 	for _, a := range addrs {
 		ip := a.ip.Asset.(*oamnet.IPAddress)
 

engine/plugins/dns/subs.go

@@ -194,9 +194,9 @@ func (d *dnsSubs) query(e *et.Event, subdomain string, src *et.Source) []*relSub
 
 	for i, t := range d.types {
 		if rr, err := support.PerformQuery(subdomain, t.Qtype); err == nil && len(rr) > 0 {
-			d.plugin.apexList.Insert(subdomain)
 			if records := d.store(e, subdomain, src, rr); len(records) > 0 {
 				alias = append(alias, records...)
+				d.plugin.apexList.Insert(subdomain)
 			}
 		} else if i == 0 {
 			// do not continue if we failed to obtain the NS record