diff --git a/tutorials/basic/12-port-check.sh b/tutorials/basic/12-port-check.sh
new file mode 100644
index 0000000..d8a8903
--- /dev/null
+++ b/tutorials/basic/12-port-check.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+#Program:
+# 检查机器的开放服务，比如Http服务(80), https服务(443)，ssh服务(22)，邮箱服务(25)
+#History:
+# 2024/07/14 LouisFonda<yigencong@yahoo.com>
+
+testfile=/dev/shm/netstat_checking.txt # 保存端口信息到内存
+netstat -tunl > ${testfile}
+
+echo -e "本机开通了如下服务"
+
+testing=$(grep ":80" ${testfile})
+if [ "${testing}" != "" ]; then
+  echo "http服务"
+fi
+testing=$(grep ":443" ${testfile})
+if [ "${testing}" != "" ]; then
+  echo "https服务"
+fi
+testing=$(grep ":22" ${testfile})
+if [ "${testing}" != "" ]; then
+  echo "ssh服务"
+fi
+testing=$(grep ":25" ${testfile})
+if [ "${testing}" != "" ]; then
+  echo "email服务"
+fi
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