diff --git a/Dockerfile b/Dockerfile
index 5a1d7ce..53b0f2f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,7 +21,7 @@ RUN sed -i '/blahblah/i\return 0;' config.m4 && \
     mkdir -p /iconv/lib/php8/modules/ && mv ./modules/iconv.so /iconv/lib/php8/modules/
 
 FROM alpine:3.16
-RUN apk add --no-cache nginx php8 php8-fpm php8-iconv
+RUN apk add --no-cache nginx php8 php8-fpm php8-iconv php8-pcntl
 COPY --from=iconv /iconv/ /usr/
 COPY --from=vlmcsd /tmp/vlmcs* /usr/bin/
 EXPOSE 1688/tcp 1689/tcp
diff --git a/src/demo.php b/main.php
similarity index 63%
rename from src/demo.php
rename to main.php
index 67c2662..c68b0bd 100644
--- a/src/demo.php
+++ b/main.php
@@ -1,8 +1,10 @@
 <?php
 
-require_once 'Daemon.php';
-require_once 'Logger.php';
-require_once 'Process.php';
+$version = 'dev';
+
+require_once './src/Daemon.php';
+require_once './src/Logger.php';
+require_once './src/Process.php';
 
 $nginx = array(
     'name' => 'nginx',
@@ -24,12 +26,18 @@ $vlmcsd = array(
 
 declare(ticks = 1);
 pcntl_signal(SIGCHLD, 'subExit'); // receive SIGCHLD signal
+logging::info('Loading kms-server (' . $version . ')');
 
 new Process($nginx['command']);
+logging::info('Start nginx server...OK');
 new Process($phpFpm['command']);
+logging::info('Start php-fpm server...OK');
 new Process($vlmcsd['command']);
+logging::info('Start vlmcsd server...OK');
+
+logging::info('Enter the daemon process');
 while (true) {
-    msSleep(3000); // sleep 3s
+    msSleep(5000); // sleep 5s
     daemon($nginx);
     daemon($phpFpm);
     daemon($vlmcsd);
diff --git a/src/Logger.php b/src/Logger.php
index 1129ca4..14f3cb6 100644
--- a/src/Logger.php
+++ b/src/Logger.php
@@ -1,6 +1,6 @@
 <?php
 
-logging::$logLevel = logging::DEBUG;
+logging::$logLevel = logging::INFO;
 
 $logColor = array(
     logging::DEBUG    => '37m', // white
diff --git a/src/Process.php b/src/Process.php
index 7fafb23..ea3d867 100644
--- a/src/Process.php
+++ b/src/Process.php
@@ -56,27 +56,3 @@ class Process {
         return proc_close($this->process); // return status code
     }
 }
-
-
-//$p = new Process(['sleep', '10'], $capture = true);
-//echo "PID -> $p->pid\n";
-//
-//echo "Alive -> " . ($p->isAlive() ? 'yes' : 'no') . "\n";
-//echo "Sleep 5s...\n";
-//sleep(5);
-//
-//echo "Alive -> " . ($p->isAlive() ? 'yes' : 'no') . "\n";
-//echo "Send kill signal\n";
-//$p->signal(15);
-//sleep(1);
-//echo "Alive -> " . ($p->isAlive() ? 'yes' : 'no') . "\n";
-//
-//echo '--------------------------------------------' . PHP_EOL;
-//echo $p->getStdout();
-//echo '--------------------------------------------' . PHP_EOL;
-//echo $p->getStdout();
-//echo '--------------------------------------------' . PHP_EOL;
-//echo $p->getStderr();
-//echo '--------------------------------------------' . PHP_EOL;
-//
-//echo "Return code -> " . $p->quit() . "\n";