![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/port4.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/windows22netstat2.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/port2.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/port1.png)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers](https://www.layerstack.com/img/docs/resources/tcpudp.jpg)
LayerStack Tutorials - LayerStack - How to check if TCP / UDP port is open on Linux & Windows Cloud Servers
![Using Telnet to test a connection and network flow | Windows Server 2016 Security, Certificates, and Remote Access Cookbook Using Telnet to test a connection and network flow | Windows Server 2016 Security, Certificates, and Remote Access Cookbook](https://static.packt-cdn.com/products/9781789137675/graphics/334696fa-3f33-4f00-8b63-b416f900c99d.jpg)