diff --git a/main.go b/main.go
index b281074..03f5a83 100644
--- a/main.go
+++ b/main.go
@@ -8,23 +8,26 @@ import (
 
 func main() {
 	domains := []string{"google.com", "twitter.com"}
-	types := []dns.QueryType{dns.TypeA, dns.TypeNS, dns.TypeMX, dns.TypeTXT}
+	//types := []dns.QueryType{dns.TypeA, dns.TypeNS, dns.TypeMX, dns.TypeTXT}
+	types := []dns.QueryType{dns.TypeA}
 
 	// Set timeout and retry times
 	dns.Config.SetTimeout(uint(2))
 	dns.Config.RetryTimes = uint(4)
 
 	// Simple usage
-	if results, err := dns.Exchange("google.com", "119.29.29.29", dns.TypeA); err == nil {
-		for _, r := range results {
-			log.Println(r.Record, r.Type, r.Ttl, r.Priority, r.Content)
+	_ = func() {
+		if results, err := dns.Exchange("google.com", "119.29.29.29:53", dns.TypeA); err == nil {
+			for _, r := range results {
+				log.Println(r.Record, r.Type, r.Ttl, r.Priority, r.Content)
+			}
+		} else {
+			log.Fatal(err)
 		}
-	} else {
-		log.Fatal(err)
 	}
 
 	// Create and setup resolver with domains and types
-	resolver := dns.NewResolver("119.29.29.29")
+	resolver := dns.NewResolver("10.0.30.1")
 	resolver.Targets(domains...).Types(types...)
 	// Lookup
 	res := resolver.Lookup()