Tom Costello (@kd9cpb) 's Twitter Profile
Tom Costello

@kd9cpb

Network security nerd with a ham radio license. AS683 Internet plumber by day, kd9cpb.com author by night. Views/Opinions are mine. RT != E

ID: 1315677179183722496

linkhttp://kd9cpb.com calendar_today12-10-2020 15:34:34

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1,1K Following

Tom Costello (@kd9cpb) 's Twitter Profile Photo

Had some fun getting #FT8 magic onto a nearly 20 year old PC at kd9cpb.com/wsjtx. It sure looked good running on the square monitor! #hamr #hamradio #WSJTX #retrocomputing #amateurradio

Kevin Myers (@stubarea51) 's Twitter Profile Photo

I think we spend way too much time in net eng trying to design a network that will never fail or account for all possible outage scenarios. We should be spending as much time asking how much outages cost & if the time, equip cost & most importantly opportunity cost is equal to

Kirk Byers (@kirkbyers) 's Twitter Profile Photo

Networking companies that put a "Please press "Enter" to continue!" message as part of the SSH login process should need to write 100 reg-exs as penance.

Tom Costello (@kd9cpb) 's Twitter Profile Photo

Had big plans to update kd9cpb.com/linux for #raspberrypi 5 & debian bookworm #hamradio fun, but I should really do spring house cleaning & gardening instead. Made a tiny update, but learning to accept my old blog posts are fading into obsolescence 🙃 #hamr #amateurradio

Tom Costello (@kd9cpb) 's Twitter Profile Photo

Had a ton of fun helping to write dl.acm.org/doi/10.1145/36… about all the RFC8925 #IPv6 fun we had at SC26, come join us at #SC24 to check it out in-person!

Kevin Myers (@stubarea51) 's Twitter Profile Photo

I've been working on a graphic to make teaching #IPv6 subnetting a little easier for engineers that are transitioning from #IPv4. One of the challenges I've run across is that textbook & training examples often use very simple patterns to illustrate IPV6 subnetting. However,

I've been working on a graphic to make teaching #IPv6 subnetting a little easier for engineers that are transitioning from #IPv4. 

One of the challenges I've run across is that textbook & training examples often use very simple patterns to illustrate IPV6 subnetting. 

However,
Scott Hogg (@scotthogg) 's Twitter Profile Photo

Great #IPv6 article in The Internet Protocol Journal Ole Jacobsen #IPv6-mostly Experiment at APRICOT 2024 by Brian Candler ipj.dreamhosters.com/internet-proto…

Tom Costello (@kd9cpb) 's Twitter Profile Photo

I know tonight is all about Santa’s work up on the housetop, but I finally got the time to write about the antenna improvements he’ll squeeze through coming down our chimney at kd9cpb.com/roof-upgrade 😂 Merry Christmas & Happy Holidays to all! #amateurradio #hamr #hamradio

Tom Costello (@kd9cpb) 's Twitter Profile Photo

New Year New Blogpost! kd9cpb.com/ccnp-2025 blabs all about my #CCNP #CCNA renewal journey that's due by September. No more #homelab fun until I stop procrastinating on completing these continuing education classes :)

Tom Costello (@kd9cpb) 's Twitter Profile Photo

Eric Chou's AI Networking Cookbook inspired me to capture some recent thoughts I've had about using LLMs in the #homelab at kd9cpb.com/2026-neteng-ho…. A 20+ year old Fry's Electronics advertisement is a perfect reminder: technology evolves, but some things remain the same!