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+# pierced
+钉钉内网穿透
+
+TCP 穿透需要在数据库里面执行：
+GRANT ALL PRIVILEGES ON *.* TO root@'%' IDENTIFIED BY '123456';
+FLUSH PRIVILEGES;
+数据库连接命令：
+mysql -h vaiwan.com -u root -p -P 1234 //端口号地址