Wireshark Is 25: The email that started it all and lessons learned along the way
Wireshark is the proverbial hammer that makes all networking problems look like nails.  Even if there's a more specific tool available there's a good chance I can swing Wireshark at the problem and figure it out.It continues to blow my mind how many people there are in the world who consider themselves networking professionals but have never used or do not understand Wireshark.  It is possibly the most important tool for actually understanding what's really happening in your network, without it you're effectively blind to so many things.Just yesterday I used it to troubleshoot a weird behavior in a recently upgraded Asterisk/FreePBX system which would have probably taken me days to guess my way through without packet captures, but with them I was able to see clearly what was happening on the network and then track that back from there.Congrats to everyone on the Wireshark team on 25 years of making network troubleshooting infinitely easier!  I would 100% not be where I am today without it.