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Discussion on: How to properly close a port?

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ajnasz profile image
Lajos Koszti

It's not closing a port, but stopping a process. You close ports using firewall usually.

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sylwiavargas profile image
Sylwia Vargas Author

Sure. I decided for this title because that's what my students google — the post is in my budding series primarily for my students at a coding bootcamp ❤️

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mayankjoshi profile image
mayank joshi

When a process is killed, the ports are automatically Freed.

When I was doing TCP up connection I Freed same port for reuse using this method itself.

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ajnasz profile image
Lajos Koszti

Luckily, if you stop the application, the port will be released. The title says How to properly close a port?, not how to kill a process. What if you want the keep the process running but don't want to listen on that port anymore?

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mayankjoshi profile image
mayank joshi

I don't think it is possible to free a port held by a process without killing the same process.