diff --git a/dns_handler.go b/dns_handler.go
index 7f07f9a..95cf00b 100644
--- a/dns_handler.go
+++ b/dns_handler.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"github.com/bitly/go-simplejson"
+	log "github.com/cihub/seelog"
 	"io/ioutil"
 	"net/http"
 	"net/url"
@@ -17,6 +18,7 @@ func get_currentIP(url string) (string, error) {
 
 	if err != nil {
 		fmt.Println("Cannot get IP...")
+		log.Error("Cannot get IP...")
 		return "", err
 	}
 
diff --git a/godns.go b/godns.go
index 0f8b2ce..9577d4a 100644
--- a/godns.go
+++ b/godns.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	log "github.com/cihub/seelog"
 	"os"
 	"strings"
 	"time"
@@ -11,8 +12,10 @@ var Configuration Settings
 
 func main() {
 	fmt.Println("Starting...")
+	log.Info("Starting...")
 
 	Configuration = LoadSettings()
+	initLog()
 
 	loop := make(chan bool)
 	go dns_loop(loop)
@@ -21,6 +24,7 @@ func main() {
 
 	if !ret {
 		fmt.Println("Dns loop exited...")
+		log.Error("Dns loop exited...")
 		close(loop)
 
 		os.Exit(1)
@@ -33,19 +37,27 @@ func dns_loop(loop chan bool) {
 
 		domain_id := get_domain(Configuration.Domain)
 
+		if domain_id == -1 {
+
+			continue
+		}
+
 		currentIP, _ := get_currentIP(Configuration.IP_Url)
 		sub_domain_id, ip := get_subdomain(domain_id, Configuration.Sub_domain)
 
 		fmt.Printf("currentIp is:%s\n", currentIP)
+		log.Infof("currentIp is:%s\n", currentIP)
 
 		//Continue to check the IP of sub-domain
 		if len(ip) > 0 && !strings.Contains(currentIP, ip) {
 
 			fmt.Println("Start to update record IP...")
+			log.Info("Start to update record IP...")
 			update_ip(domain_id, sub_domain_id, Configuration.Sub_domain, currentIP)
 
 		} else {
 			fmt.Println("Current IP is same as domain IP, no need to update...")
+			log.Info("Current IP is same as domain IP, no need to update...")
 		}
 
 		//Interval is 5 minutes
diff --git a/logger.go b/logger.go
new file mode 100644
index 0000000..b135c1d
--- /dev/null
+++ b/logger.go
@@ -0,0 +1,15 @@
+package main
+
+import log "github.com/cihub/seelog"
+
+func initLog() {
+	testConfig := `
+<seelog>
+	<outputs>
+		<rollingfile type="size" filename="run.log" maxsize="100" maxrolls="5" />
+	</outputs>
+</seelog>
+`
+	logger, _ := log.LoggerFromConfigAsBytes([]byte(testConfig))
+	log.ReplaceLogger(logger)
+}