fix: dns server is now configurable

.gitignore

@@ -1,2 +1,2 @@
 configs/*
-cmd/tt/tt
+cmd/dd/dd

cmd/dd/config.go

@@ -17,6 +17,7 @@ type Config struct {
 	MailSmtpPort   string                       `json:"mail_smtp_port"`
 	DdUsers        map[string]map[string]string `json:"dd_users"`
 	DnsTTL         int                          `json:"dns_ttl"`
+	DnsServer      string                       `json:"dns_server"`
 }
 
 var config Config

cmd/dd/dd.go

@@ -58,10 +58,10 @@ func updateDnsRecord(domain string, ip string, hmac string, keyname string, secr
 	}
 	defer f.Close()
 
-	update := fmt.Sprintf(`server 127.0.0.1
+	update := fmt.Sprintf(`server %s
                            key %s:%s %s
                            update add %s %d a %s
-                           send`, hmac, keyname, secret, domain, config.DnsTTL, ip)
+                           send`, config.DnsServer, hmac, keyname, secret, domain, config.DnsTTL, ip)
 
 	_, err = io.WriteString(f, update)
 	if err != nil {