diff --git a/TODO.md b/TODO.md
index cb6d7f86056f17c9889e2249f5fed238428d9b64..cce8576b009235c474851469817b5a6ef61cd2fe 100644
--- a/TODO.md
+++ b/TODO.md
@@ -28,7 +28,7 @@ was ich so sehe ...
     ✅ PdoConnect
     ✅ Phpmodules -> funcktioniert formal, aber bei Nicht-PHP-Apps nicht relevant; getestet werden die im Binary eincomoilierten Module
     ✅ Ping
-    ⬜ PortTcp
+    ✅ PortTcp -> sockets Modul im Binary hinzugefügt.
     ⬜ Simple
     ⬜ SqliteConnect
 
diff --git a/inc_vars.php b/inc_vars.php
index 498f5b2a8244706a7fe83d7da10657e67e5022b7..e76ddc2eb09b4f78b6679c7ae5210fd2d78fb414 100644
--- a/inc_vars.php
+++ b/inc_vars.php
@@ -3,7 +3,7 @@
 $php_version="8.3";
 
 // extensions - see https://static-php.dev/en/guide/extensions.html
-$php_libs="mysqli,openssl,pdo,pdo_mysql,pdo_pgsql,pdo_sqlite,zlib";
+$php_libs="mysqli,openssl,pdo,pdo_mysql,pdo_pgsql,pdo_sqlite,sockets,zlib";
 
 $myos=strtolower(PHP_OS);
 $myarchitecture="x86_64";
diff --git a/tests/200_porttcp.php b/tests/200_porttcp.php
new file mode 100644
index 0000000000000000000000000000000000000000..59acf55db05cf54f6111055bb84f1637e7ac6b83
--- /dev/null
+++ b/tests/200_porttcp.php
@@ -0,0 +1,7 @@
+#!/usr/bin/env php
+<?php
+
+echo "
+WHAT: Run check porttcp
+";
+_exec("$AMCLI --ini='".__DIR__."/configs/porttcp.ini'");
diff --git a/tests/configs/porttcp.ini b/tests/configs/porttcp.ini
new file mode 100644
index 0000000000000000000000000000000000000000..225a31219953b8858cd1592596011bb9e5ff4a7a
--- /dev/null
+++ b/tests/configs/porttcp.ini
@@ -0,0 +1,23 @@
+; =======================================================================
+;
+; APPMONITOR CLI CLIENT
+;
+; for the checks see its parameters
+; <https://os-docs.iml.unibe.ch/appmonitor/PHP_client/Plugins/Checks/index.html>
+;
+; =======================================================================
+
+
+; -----------------------------------------------------------------------
+; CHECKS
+; -----------------------------------------------------------------------
+
+["Ping"]
+description="Check port 443 on www.example.com"
+function="Porttcp"
+params='{
+    "port": 443,
+    "host": "www.example.com"
+}'
+
+; -----------------------------------------------------------------------