This evening I read the iptables man page and Linux iptables Pocket Reference from cover-to-cover; my notes are here: Netfilter.
I think at this point I am ready to use iptables in anger for the first time in a long time, and the first time ever on a router.
However, before I take that on, I’m going to have a quick diversion into the following books, and then sleep, and I will do my iptables programming when I wake up tomorrow.
Read a bunch of stuff about hardware debugging. Learned a thing or two, but I have much further to go!
This guy, Cathode Ray Dude [CRD], does some fun stuff. He’s on the web via HTTPS at gekk.info and HTTP at www.cathoderaydude.com.
I was at the thrift store the other day and I found this retro gaming system for AU$15 (US$10). Haven’t had a play with it yet, I’m saving it for when I have some time to do the unboxing. And I didn’t want to do that until I had my new HDMI recording setup installed, but that’s done now, so I AM READY BABY.
Today while watching EEVblog 1559 – PCB Design: Trace Current Rating I learned about the Saturn PCB Design Toolkit.
I asked ChatGPT to format php datetime as “Fri 24 Mar 2023” and it “understood” what I meant and gave me the answer that I wanted! If that’s not intelligence I don’t know what is…
This looks like fun: protohackers.com. If I had more time I would definitely do this. If… :P
Here’s a great talk about the Apollo Guidance Computer: Light Years Ahead | The 1969 Apollo Guidance Computer.
I watched Ben Eater’s videos How do CRCs work? and Checksums and Hamming distance (the full course is Learn about error detection) then found the Wikipedia page: Cyclic redundancy check.
Also of interest:
I wanted to know how to stop my MacBook Pro from going to sleep when I closed its lid, so I asked ChatGPT and discovered Amphetamine. Good work, Internet; you have come a long way since the nineties.
p.s. I always wanted to blog about amphetamines.