diff --git a/sink/Makefile b/sink/Makefile
index b3e9feb..6755469 100644
--- a/sink/Makefile
+++ b/sink/Makefile
@@ -10,12 +10,13 @@ C_INCLUDES = \
 -I. \
 -I../cube/User/Inc
 
+VERSION := $(shell git rev-parse --short=8 HEAD)
+
 CC = gcc
-CFLAGS = $(C_INCLUDES) -Wall -Werror -std=c99
+CFLAGS = $(C_INCLUDES) -Wall -Werror -std=c99 -DVERSION=$(VERSION)
 LDFLAGS = -lconfig -lcurl
 TARGET = sink20169
 
-
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),OpenBSD)
   CFLAGS += -I/usr/local/include -DOpenBSD=1
diff --git a/sink/logging.c b/sink/logging.c
index d8ab01e..81fc67b 100644
--- a/sink/logging.c
+++ b/sink/logging.c
@@ -2,16 +2,51 @@
 
 #include <syslog.h>
 #include <stdarg.h>
-// #include <stdio.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+extern bool verbose;
+int facility = LOG_LOCAL0;
+
+void setfacility(const char *facility_p) {
+  if (! strcmp(facility_p, "LOCAL0")) {
+    facility = LOG_LOCAL0;
+  } else if (! strcmp(facility_p, "LOCAL1")) {
+    facility = LOG_LOCAL1;
+  } else if (! strcmp(facility_p, "LOCAL2")) {
+    facility = LOG_LOCAL2;
+  } else if (! strcmp(facility_p, "LOCAL3")) {
+    facility = LOG_LOCAL3;
+  } else if (! strcmp(facility_p, "LOCAL4")) {
+    facility = LOG_LOCAL4;
+  } else if (! strcmp(facility_p, "LOCAL5")) {
+    facility = LOG_LOCAL5;
+  } else if (! strcmp(facility_p, "LOCAL6")) {
+    facility = LOG_LOCAL6;
+  } else if (! strcmp(facility_p, "LOCAL7")) {
+    facility = LOG_LOCAL7;
+  } else if (! strcmp(facility_p, "USER")) {
+    facility = LOG_USER;
+  } else if (! strcmp(facility_p, "DAEMON")) {
+    facility = LOG_DAEMON;
+  }
+}
+
 
 void logmsg(int prio, const char* format, ...) {
   va_list vl;
-  
-  openlog("counter", 0, LOG_LOCAL1);
+  char buf[1024];
+
   va_start(vl, format);
-  vsyslog(prio, format, vl);
-  //vprintf(format, vl);
+  vsnprintf(buf, sizeof(buf), format, vl);
   va_end(vl);
+
+  if (verbose) {
+    printf(buf);
+  }
+
+  openlog("counter", 0, facility);
+  syslog(prio, buf);
   closelog();
 }
 
diff --git a/sink/logging.h b/sink/logging.h
index 57bd67f..12d34b2 100644
--- a/sink/logging.h
+++ b/sink/logging.h
@@ -4,5 +4,5 @@
 #include <syslog.h>
 
 void logmsg(int prio, const char* format, ...);
-
+void setfacility(const char *facility_p);
 #endif // _LOGGING_H_
diff --git a/sink/sink20169.c b/sink/sink20169.c
index 7851ee1..2050567 100644
--- a/sink/sink20169.c
+++ b/sink/sink20169.c
@@ -2,6 +2,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 #include <unistd.h>
 #include <errno.h>
 #include <sys/socket.h>
@@ -48,6 +49,8 @@ typedef struct {
     char influxUrl[1024];
 } t_forwarderHandle;
 
+bool verbose = false;
+
 
 int initConfig(const char *configFilename, t_configHandle *configHandle) {
     configHandle->numOfDevices = 0;
@@ -312,11 +315,22 @@ int main(int argc, char **argv) {
     const char *configFilename = DEFAULT_CONFIG_FILENAME;
 
     int c;
-    while ((c = getopt(argc, argv, "f:")) != -1) {
+    while ((c = getopt(argc, argv, "f:vs:")) != -1) {
         switch (c) {
             case 'f':
                 configFilename = strdup(optarg);
                 break;
+            case 'v':
+                verbose = true;
+                break;
+            case 's':
+                setfacility(optarg);
+                break;
+            case 'h':
+                printf("sinkserver for mainsfrequency counter\n");
+                printf("https://home.hottis.de/gitlab/wolutator/mains-frequency-counter-stm32\n");
+                printf("Version: " VERSION "\n");
+                break;
         }
     }