Resources for packet sniffing?

Idk if this is the right subreddit but I’ve recently looked into packet sniffing and played around with it for a bit, however I feel like it’s an absolute pain to figure out which package was send by which process and I feel like there is an easier and better way than constant trial and error of IPs and ports.

Right now I look into which ports the program uses, which is often rather easy as it’s publicly available by just searching or can be limited by the specific action I want to perform (i.e. sending a chat message likely uses port 443 or ports of similar purpose). I then filter the incoming packages by that port and print the source address and try to map the time of action and the time of the package arrival and just try the IPs that were printed. I tried it on Discord messages (very easy to control) and were able to filter all applications and only display received discord packages.

That’s most likely not the optimal solution though and I’d very much appreciate if there is a better one.

I’m not very knowledgeable in this area so if you guys have some resources on how to properly do this stuff I’d be very thankful👍

submitted by /u/JustBoredYo
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December 28, 2023
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