CloseTheDoor is described as 'indentifies all the listening ports TCP/UDP over IPv4/v6 and the associated program files' and is an app in the Network & Admin category. There are four alternatives to CloseTheDoor for Windows and Linux. The best alternative is Advanced Port Scanner, which is free. Other great apps like CloseTheDoor are CurrPorts (Free), Free Port Scanner (Free) and Netactview (Free, Open Source).
- 4 alternatives
- Advanced Port Scanner is a fast and free software for port scanning. It will allow you to quickly find all open ports (TCP and UDP) and detect versions of programs running on them. The utility includes many features simplifying network management. View 33 alternatives to Advanced Port Scanner
- Free • Proprietary