diff --git a/ilogger.go b/ilogger.go
new file mode 100644
index 00000000..531f97ba
--- /dev/null
+++ b/ilogger.go
@@ -0,0 +1,9 @@
+package core
+
+// logger interface, log/syslog conform with this interface
+type ILogger interface {
+	Debug(m string) (err error)
+	Err(m string) (err error)
+	Info(m string) (err error)
+	Warning(m string) (err error)
+}