What is this process- some type of IP?

Discussion in 'Mac Basics and Help' started by conanthewarrior, May 25, 2018.

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  1. conanthewarrior, May 25, 2018
    Last edited: May 25, 2018

    conanthewarrior macrumors member

    Joined:
    Nov 5, 2014
    #1
    Hello, I was just checking how much ram my Mac was using, and noticed 5 processes that were http://127.0.0.1:551XX (I've hidden the end in case it is something personal)

    There was also multiple etrechecks running- I was using this to check everything was OK, and it is.

    I'm just unsure what this address is, and why there are 5 running. If I type it in my browser, it just says "bad request".

    EDIT: Doh, apologies, it was etrecheck.
     
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  2. jerryk, May 25, 2018
    Last edited: May 25, 2018

    jerryk macrumors 601

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    Location:
    SF Bay Area
    #2
    127.0.0.1 is your machine. It is the "loopback" address also known as "localhost".

    The ":551xx" refers to port 551xx on your machine. Which is being used by some process running on your system
     
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  3. conanthewarrior, May 25, 2018

    conanthewarrior thread starter macrumors member

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    Nov 5, 2014
    #3
    Thank you for the full explanation, I did wonder exactly what the address was. It doesn't seem to be a process now I've finished using etrecheck.
     
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  4. jerryk, May 25, 2018

    jerryk macrumors 601

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    #4
    I guess etrecheck uses them to talk to services it starts as part its processing.
     
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