What is this process- some type of IP?

[conanthewarrior]

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.

 

[jerryk]

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

 

[conanthewarrior]

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

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.

 

[jerryk]

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.

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