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Re:Why Is This Website Port Scanning Me? by neurostimulant on Wednesday May 20, 2020 @05:11PM (#23251844)
> You’ve never used a web-app chat client?

A decade ago people use comet for this, with php and apache! Every single ongoing comet connection occupy an apache process, a significant resource hog, yet people still use it because they have no other choice. These days we have websocket but I bet comet can be implemented with minimal resource penalty these days thanks to proliferation of async webserver support in modern backend stacks.

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