CloseTheDoor is described as 'Indentifies all the listening ports TCP/UDP over IPv4/v6 and the associated program files. This will help you to detect security holes and close backdoors when you want to prevent remote attacks' and is an app in the network & admin category. There are five alternatives to CloseTheDoor for a variety of platforms, including Windows, Linux, Self-Hosted, Synology C2 and Unraid apps. The best CloseTheDoor alternative is Advanced Port Scanner, which is free. Other great apps like CloseTheDoor are CurrPorts, Free Port Scanner, portracker and Netactview.
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.
Displays all open TCP/IP and UDP ports with full process details including name, path, version, creation time, and user information. Supports closing connections, killing processes, marking suspicious ports, exporting data in multiple formats, and portable operation for network monitoring.
Free Port Scanner is a small, fast, easy-to-use and robust port scanner for the Win32 platform.You can scan ports on fast machines in a few seconds and can perform scan on predefined port ranges. This tool uses TCP packets to determine available hosts and open ports, service...
Netactview is a graphical network connections viewer for Linux, similar in functionality with Netstat. It includes features like process information, host name retrieval, automatic refresh and sorting.
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