And after you check your configs, set up tests anyway, to verify that you can't access things from outside.

1/ How about an Ethernet history lesson? And a story about why I'm responsible for one of the most hated features of SunOS!

New image of the week from my upcoming book on Matplotlib and scientific visualization. See github.com/rougier/scient… #dataviz #python

New post! Databases hold a special place in the hearts of operations folks. ClickHouse deserves a spot in your toolbelt for analytics use cases. #DevOps nedmcclain.com/why-devops-lov…

"Analysts write dbt models, data engineers figure out how to run them"

Finally releasing my #AWS account controller solution, which creates an AWS SSO application for federated users to create or delete ephemeral / sandbox accounts. 🙌 github.com/iann0036/aws-a…

Checking some sessions from NANOG77, one of the alltime best sessions is the "Everything You Always Wanted to Know About Optical Networking – But Were Afraid to Ask" session with Richard Steenbergen. pc.nanog.org/static/publish… #NANOG

If you really want to, you can use X.509 client certificates to authenticate your Chrome browser to AWS. See my new post "Using AWS IoT for mutual TLS in a web application" link.medium.com/zjRGXYKaJ9

Mob programming is a meeting where the minutes are executable.

lldp sniff: $ ip -o link show up | while read -a L; do N=${L[1]/:}; timeout 30 tcpdump -c1 -evi $N ether proto 0x88cc |& tee $N & done

I wrote an article about BPF and Linux perf 🎉 The article includes step-by-step debugging with flame graphs, and many nitty-gritty details that tie themselves together at the end (i promise!). #bpf #ebpf #linux doordash.engineering/2021/04/01/exa…

scattered-thoughts.net/writing/intern… Eventual consistency is not sufficient for unwindowed operations in streaming systems. Ksqldb and flink suffer severe and persistent errors. Internal consistency restores the intuition we're used to from kv databases.

Internal Combustion Engine – ciechanow.ski/internal-combu…

This analysis seems to me to be profoundly misguided. The supposed "cloud paradox" is that cloud is cheap early on but then later gets expensive enough that it's worth repatriating* workloads on-prem. a16z.com/2021/05/27/cos…

Ireland EPFL Passenger Locator Form travel.eplf.gov.ie/en/verify email/phone verification field is returning a 500 Internal Server Error for every phone number and email address. Just me? Irish Foreign Ministry

Note that government bid documents often spell waterfall as “Agile.”

any coder worth its keyboard weight in .. (some substance that you like) out there that uses S3, should know how S3 works, and now you can know a little bit more because of this USENIX Association FAST'23 talk: youtube.com/watch?v=sc3J4M… #spinningrust #erasureencoding #cloud #storage