| Homepage | https://dataplane.org/jtk |
When you're trying to get #Google to help them fix a problem they have in relaying an email to a list (they are forwarding as if it they are originating your non-GMail email, thus incurring an SPF failure) their helpful support team to the rescue (see image attached).
FYI... the second thing they want is a screen cap of the client SMTP config.
Very temped to send a screenshot with some pretty obnoxious NSFW images and profanity-laden text in the test email.
Weekend Reads
* A look at GeoIP
https://www.potaroo.net/ispcol/2025-12/geoip.html
* Tor network pentest report
https://blog.torproject.org/code-audit-network-health-tools/TTP-code-audit-network-health-report.pdf
* RPKI publication practices
https://arxiv.org/abs/2512.16369
* World's hottest data centers
https://restofworld.org/2025/data-center-heat-map/
* Measuring people to government paths
https://arxiv.org/abs/2512.13994
Linux kernel tooling update message included an unsurprising, but noteworthy lament about the state of #SMTP:
"We're increasingly having to deal with the degradation of the SMTP support by
all commercial companies: [...]"
https://lore.kernel.org/all/20251209-roaring-hidden-alligator-068eea@lemur/
The Internet Last Week
* SplinterCon
https://splintercon.net/paris/
* ARIN accidental reallocation
https://www.arin.net/announcements/20251212/
https://lists.nanog.org/archives/list/nanog@lists.nanog.org/thread/5MCMSACQADNXE65BTK34MQ3PXY4PDETF/
* Azure US government service failures
https://azure.status.microsoft/status/history/?trackingId=ML7_-DWG
* Zayo IX change on Quad9 service effects
https://uptime.quad9.net/incidents/t562nwzcrw09
Hey Fedi,
I'll reduce my load at my job and will be available max 70% for a work as a:
(Sr.) Network engineer, knows ISPs, IXPs, people/NOGs around, the systems/infra needed for all that. I've been around the industry for ~20 years and would rather work for an entity with ethics.
I'm based in CH, could work anywhere in Europe, or remote. I'm ok traveling, will avoid US for now ;)
Any help, boosts, pointers would be greatly appreciated. Feel free to DM!
Weekend Reads
* Is this an AI bubble?
https://www.oaktreecapital.com/insights/memo/is-it-a-bubble
* Internet Protocol Journal
https://ipj.dreamhosters.com/wp-content/uploads/2025/12/283-ipj.pdf
* Cloud colocation attacks
https://arxiv.org/abs/2512.10361
* ISP tier classification problems
https://tier1-analysis.53bits.co.uk/
* Wikipedia IPv6 client addressing history
https://arxiv.org/abs/2512.08808
Dataplane.org
Systems Approach
Dj PorCus - Will