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Joined 1 month ago
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Cake day: November 22nd, 2025

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  • Dead serious question: I have only ever worked in the public sector (state level and local municipality) but often see or hear about these seemingly idiotic “interview questions” on television (and obviously memes).

    Is this:

    1. just a meme
    2. just a joke
    3. an actual phenomenon in the private sector

    If 3, what on earth is its purpose and what could the interviewer possibly find out about the applicant by asking this?

    I’m calm.


  • Not with the front end iptables. Linux can filter packets based on their source and destination IP, port and MAC address. It can also filter packets based on their state, being NEW,ESTABLISHED, RELATES,INVALID and UNTRACKED. You can check what processes are establishing connections with for instance ss or lsof -i and what commands or binaries/executables stand for those processes with for instance ps.

    I know of no userland utility with which one could specify processes, command names or binaries/executables to block. Which might seem like a hassle from a Windows perspective, but the level of control that you achieve with Linux’s packet filtering is neat and it has taught loads about how networking and the Internet works. :)