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NerdResa @NerdResa

Idea for a new hobby:
Collecting network packet capture (pcap) traces from interesting/"fun" network environments. :3
In the same way other people collect stamps or whatever.

"Look at this weird setup with multiple DHCP servers!"
"I've got one where the timings are totally off!"
... you could also trade them if you're comfortable. :D

If you've never made a packet capture trace before, here's how you can get started using Wireshark: howtogeek.com/104278/how-to-us
If you prefer video instructions: youtube.com/watch?v=Ov3BRzGziC

@NerdResa cool, thanks for sharing. Wireshark and the amount of data you might end up with initially seem scary but it is not so bad when you use filters to narrow down the data you need.

I was impressed to see a Gigaset Maxwell 3 VOIP phone I provided for work with debug facilities on the web configuration that capture and display SIP packets going to and from the device (useful especially if working across firewalls where SIP can be a challenge to get working), although these aren't cheap!

@vfrmedia @NerdResa Long time ago when I was teaching networking at the uni #wireshark was a primary tool for everyone. Hopefully future business leaders will understand the network better :)

@saper Yup, it's a nice tool, I taught my Master students tcpdump, tshark and Wireshark as well.
Though hopefully radical anti-capitalist activists learn more and outsmart the business leaders :P

@vfrmedia

@NerdResa @saper at least in England (DE, PL etc might be different) a lot of "business leaders" (other than those in charge of tech companies making surveillance equipment) just say "gosh! what a confusing load of numbers!" and leave it to the "hacker types" to deal with such things as Wireshark 😀

@NerdResa @vfrmedia I stopped dreaming and got practical once I have seen very well organized activist organisations in action in the U.S.

Addition to the packet capturing thing earlier:
Please be aware that captured packets can contain sensitive information, like what sites you're browsing, their content or even passwords. So please only capture your own traffic or other people's traffic only with their explicit consent, and be careful if you choose to share any of it.

@NerdResa That is exactly what I worry about for cloudshark.org/ (I've never uploaded there).

To get started with sample captures, there's wiki.wireshark.org/SampleCaptu (I have used these samples) and netresec.com/?page=PcapFiles (I have never used this site).

@NerdResa I find them very useful when developing network parsers :)

@amphetamine I was assuming people would do that in their own network or with the consent of those involved :o
But you're right, this kind of thing should be said explicitly.