portmap

portmap is a user-friendly command-line tool for managing network ports on Linux.
It provides an easier interface than lsof and netstat for common port management
tasks that developers face daily.

Features:
- List all active ports with process information
- Kill processes by port number
- Find ports by process name
- Check port availability
- Filter by port range and protocol
- JSON output support for scripting

To install portmap:

- sudo snap install portmap
- sudo snap connect portmap:network-observe
- sudo snap connect portmap:system-observe
- sudo snap connect portmap:process-control

Note: The request for auto-connection of these interfaces is currently pending approval. Until approved, manual connection is required.