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A comment on Security by obscurity is underrated. Parent comment

Re:Security by obscurity is underrated by Retric on Friday September 11, 2020 @06:47PM (#24448110)
There is supposed to be a response when a port is closed telling you the machine is online but not listening to that port. https://en.wikipedia.org/wiki/Port_scanner
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Re:Security by obscurity is underrated by scarby2 on Friday September 11, 2020 @09:48PM (#24449167)
most people have firewalls configured to simply drop traffic not destined for open ports, in which case there is no response as the traffic never makes it beyond the firewall.
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Re:Security by obscurity is underrated by efreak on Saturday September 12, 2020 @01:53AM (#24450185)
If you'd like to be very visible in a different way, you could always waste resources:

1. Endlessh: https://news.ycombinator.com/item?id=19465967

2. Tarbit: https://github.com/nhh/tarbit

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