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Kal Feher

@kalfeher.bsky.social
39 followers 22 following 199 posts

Unresearched opinions on DNS, Internet and Security. I worked for a cloud company and now work for a cloud company. kalfeher.com

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Kal Feher @kalfeher.bsky.social · 04/09/2026
For some reason this isn't listed in the release notes, but #Firefox 155 now supports HTTPS #DNS records (RFC9460). It has been +2yrs but it's added now.
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Kal Feher @kalfeher.bsky.social · 03/09/2026
Backlog clearing today. Updated secure practices for domain owners page. mostly domain lifecycle stuff csv file also updated for the tldr crew #dns #dnssec #icann kalfeher.com/secure-pract...
kalfeher.com
Secure Practices for Domain Owners
The recommendations contained within this document attempt to provide easy to audit points that any domain owner, regardless of technical capability, can …
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Kal Feher @kalfeher.bsky.social · 28/07/2026
Company I worked for sent one of those test your employees phishing emails using a TLD my team administered for both origin and dodgy link. It took the SOC two weeks to work out why there were no hits at all.
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Kal Feher @kalfeher.bsky.social · 02/07/2026
Looks like Jordan were finally able to generate new sigs for their IDN DNS zone xn--mgbayh7gpa. No info on why it took nearly 2 months to fix. #dns #dnssec
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Kal Feher @kalfeher.bsky.social · 01/07/2026
The font changes where key labels are inserted into their spam form are so subtle tho. Barely noticed. 🤣
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Jerry Chen @jcsalterego.bsky.social · 27/05/2026
they should invent a giant pez dispenser that dispenses tim tams
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Kal Feher @kalfeher.bsky.social · 25/05/2026
used R53 as registrar bc I worked for AWS + updating DS records was easy w/ lambda and api. But R53domains API or reseller sync been broken for quite some time. I had to turn off my automation. So any registrar suggestions welcome. Currently leaning towards @porkbun.com #dns #dnssec #registrar
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Kal Feher @kalfeher.bsky.social · 22/05/2026
#dnssec outage for Jordan IDN kalfeher.com/jordan-idn-f... #dns
kalfeher.com
Jordans IDN zone fails
Jordan's IDN zone has a long running outage
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Lesley Carhart @hacks4pancakes.com · 26/04/2026
When the WiFi goes out on Qantas they do the most Australian thing ever and just keep bringing the drink cart around with hard liquor every 15 minutes.
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ABR @abr.bsky.social · 19/04/2026
Why Mastodon is not ready for general use, part ∞
Mastodon post:

Jerry
3h • @jerry@infosec.exchange
If you or someone you know has an account on mastodon.cloud, I would highly recommend migrating to a new server. Lots of instances are in the process of completely blocking mastodon.cloud which will sever all connections for people on
mastodon.cloud. Mastodon.cloud is effectively abandoned, running very old and out of date software with minimal moderation resulting in a good deal of moderation work for those of us running other instances.
I am posting this in hopes that some people on mastodon.cloud see it and decide to take action.
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Lesley Carhart @hacks4pancakes.com · 04/04/2026
There's still space for a few more uni students for Bruce Large and my SANS ICS310 community version at BSides Melbourne. Learn about OT cybersecurity! Free from us, only the conference $30 entry fee. events.humanitix.com/bsides-m...
events.humanitix.com
BSides Melbourne 2026 - Training
Get tickets on Humanitix - BSides Melbourne 2026 - Training. SEEK, 60 Cremorne St, Cremorne VIC 3121, Australia. Friday 15th May 2026. Find event information.
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Kal Feher @kalfeher.bsky.social · 03/04/2026
It's a victorian tradition at easter to sit down with a coffee and hot cross bun and stare at the Bells beach 'on-hold, call at X' count down timer. 😂 #bellsbeach #surfing
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Randall Munroe @xkcd.com · 01/04/2026
CREATION Happy April Fool's Day! xkcd.com/3227/
4-panel comic. (1) [Black panel with white text boxes] TEXT BOX: And God said, "Let there be light," (2) [Sun radiating light.] TEXT BOX: And there was light. (3) [View of bright sun rising over Earth's horizo] (4) TEXT BOX: God saw that light was-- [Chat bubble from Earth] CHAT BUBBLE: Can you add support for dark mode?

Open xkcd.com to view toggles for different modes.
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Kal Feher @kalfeher.bsky.social · 02/04/2026
oh, they did already exist. RFC8962. I suppose I've earned myself a Raised Eyebrow for not checking References
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Kal Feher @kalfeher.bsky.social · 02/04/2026
I'm a little surprised that the Internet Protocol Police have only just been formed. honestly thought they already existed 🤷‍♂️ www.rfc-editor.org/rfc/rfc9948....
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Lesley Carhart @hacks4pancakes.com · 06/03/2026
I'm back, taking commercial speaking engagements in ANZ. www.saxton.com.au/speakers/le...
saxton.com.au
Book Lesley Carhart for your next event
Book Lesley Carhart for your event with Saxton Speakers. We work with over 100 Speakers and Ambassadors across Australia and New Zealand.
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Kal Feher @kalfeher.bsky.social · 04/03/2026
For the next 100yrs #Melbourne vs #Sydney debates will be resolved instantly when pointing out that Kyle and Jacqui O were loved in Sydney and were humiliated in Melbourne. Sorry, I don't make the rules.
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ABR @abr.bsky.social · 25/02/2026
I love actionable alerts.
Screenshot:

labcorp | Patient
⚠️[object Object]
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Kal Feher @kalfeher.bsky.social · 10/01/2026
Every school year, at exam time, many countries turn off internet access to stop cheating. Someone far more suspicious than me might suggest it is practice for more nefarious purposes.
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Kal Feher @kalfeher.bsky.social · 10/01/2026
sure, but the crossover cable is definitely useful. if you have to connect two hubs together. for reasons. 😆
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Kal Feher @kalfeher.bsky.social · 08/01/2026
1st total fire ban of the year. When the official scale is at 'extreme' and 'catastrophic' its a sure sign we will have a bad day. emergency.vic.gov.au/respond/#!/w...
emergency.vic.gov.au
Incidents and Warnings - VicEmergency
Victoria's combined source of emergency information and warnings, helping the community to prepare for, respond to and recover from emergencies across the state.
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Kal Feher @kalfeher.bsky.social · 03/01/2026
"all it took was a simple URL trick of adding 'download-all-users/' to the top-level domain." 0days are for losers 😂
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Kal Feher @kalfeher.bsky.social · 23/12/2025
Also there might be less spurious arguments about governance, allowing airtime for other important arguments about AI and global junkets. also yay! Here is auDA's writeup www.auda.org.au/news-insight...
auda.org.au
Celebrating a success at WSIS+20
An important milestone in the future of the global internet arrived this week. At the United Nations General Assembly in New York, countries came to consensus outcomes in the twenty year review of the World Summit on the Information Society (the WSIS+20 review).
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Kal Feher @kalfeher.bsky.social · 23/12/2025
The world decided not to call multistakeholer internet governance mean names: news.un.org/en/story/202... As someone who had to think about how transitioning the root would work, I always wonder how the scary UN takeover would be accomplished. That's been postponed. Yay! #dns #internet
news.un.org
At UN, nations pledge people-first digital future, tighter AI safeguards
UN Member States on Wednesday pledged to narrow widening digital divides and put stronger safeguards around artificial intelligence (AI), as the General Assembly concluded a major review of how the wo...
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Kal Feher @kalfeher.bsky.social · 09/11/2025
aust govt paid for ads on streaming svcs to remind ppl to patch their gear, amongst other advice. That site is a series of tips, no downloads.
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Kal Feher @kalfeher.bsky.social · 06/11/2025
This is specifically to shift more residential usage to the daytime. Peak residential usage is still early evening when solar generation has stopped in the north or is low in the south. More batteries and VPP might help but behaviour changes are the most effective.
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Kal Feher @kalfeher.bsky.social · 30/10/2025
I've heard from a lot of my ex-colleagues at #AWS in the last few days. Seems like the layoffs were brutal in #australia Some who were not laid off are also leaving. The stress of waiting for the next round, which will come just after performance review time, is too much.
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Montague Street Bridge @montaguestbridge.bsky.social · 26/10/2025
www.instagram.com/reel/DQFfhhN...
instagram.com
cameronmarkdoyle on Instagram: "Ya can't park that there 💥🚚 #montaguestreetbridgeView all 154 comments"
Ya can't park that there 💥🚚 #montaguestreetbridge
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Kal Feher @kalfeher.bsky.social · 21/10/2025
with ppl talking about the #aws #DNS outage, do we need an explainer on phonebooks for Gen Zers?
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Corey Quinn @quinnypig.com · 02/10/2025
This you?
Group of people at a funeral, gathered around a casket.
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Kal Feher @kalfeher.bsky.social · 02/10/2025
Can only hit like once. I want to hit like thousands more times. In fact, once for every time I hear it in a day.
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Merriam-Webster @merriam-webster.com · 01/10/2025
We are thrilled to announce that our NEW Large Language Model will be released on 11.18.25.
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Randall Munroe @xkcd.com · 30/09/2025
Could we survive eating only humans? Watch the latest What If? video collaboration with @minuteearth.bsky.social! youtu.be/PUtI3xoaHx0
youtu.be
Could we survive eating only humans?
YouTube video by xkcd's What If?
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Kal Feher @kalfeher.bsky.social · 27/09/2025
ok, so the mismatch rates have not entirely returned to previous levels. Without talking to the Swedish registry (IIS), I'm not going to know why. If I become rich, I'll retain lookup data to analyse this myself in the future. #dns #dnssec #sweden #cctld #icann
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Kal Feher @kalfeher.bsky.social · 27/09/2025
This isn’t as surprising as it might seem. Many marsupials have the instinct to climb on something fluffy and they can do it fast. Even when very young. Luckily I only need to worry about ring tails and brushies climbing onto my dog #dogs #dogsky #australia #aus www.abc.net.au/news/2025-09...
abc.net.au
Golden retriever takes baby koala for a joy ride
When Steve Lamplough heard a commotion outside his south-west Victorian home, the last thing he expected to see was a joey koala riding his dog like a racehorse.
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Kal Feher @kalfeher.bsky.social · 06/09/2025
with Today's stats updated, its appears the spike was transient and probably the result of a large roll over. .ONLINE on the other hand has been trending higher mismatch rates for a while and has also jumped. #dns #dnssec #dnssecurity
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Kal Feher @kalfeher.bsky.social · 06/09/2025
If you're associated with .SE or .NU, is there an explanation why mismatch rates for CDS records suddenly jumped in those zones? could be just a timing thing with a large operator rolling keys at the same time. I'm curious. kalfeher.com/analysis/cds... #dns #dnssec #domains
kalfeher.com
Daily CDS Usage Charts
Charts showing CDS usage on the Internet. Updated daily.
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Kal Feher @kalfeher.bsky.social · 29/08/2025
I've updated CDS tracking charts to show 360 days of aggregated trends. TBH the trend is pretty clear. CDS usage overall is going down and TLD zones are less correct over time. possibly related #dns #dnssec kalfeher.com/analysis/cds...
kalfeher.com
Daily CDS Usage Charts
Charts showing CDS usage on the Internet. Updated daily.
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Jerry Chen @jcsalterego.bsky.social · 26/08/2025
ah, well, we get the mint ones
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Kal Feher @kalfeher.bsky.social · 08/08/2025
It would be nice if some of the funds auDA receives was directed at modernising DNS for .au. It’s kinda their job but appears to never quite be important enough to do. So .au still on algo 8 because apathy. mastodns.net/@diffroot/11... #dns #dnssec #dnssecurity
mastodns.net
Tootzonechanges (@diffroot@mastodns.net)
🇦🇺 au. : Key Rollover - Changed DS - 51895 8 2 1775 8 2 + 32902 8 2
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Kal Feher @kalfeher.bsky.social · 23/07/2025
I think I just had a seizure reading that.
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Kal Feher @kalfeher.bsky.social · 11/07/2025
wait until ppl discover that 100M+/yr AWS customers are very common and this bill is not big, not special and it _is_ optimised. orgs do waste money on the cloud, but no more so than they waste money on any large scale capability they need.
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Kal Feher @kalfeher.bsky.social · 05/07/2025
in the past I've provided expert advice for inclusion in guidelines for domain owners. Often that advice is mangled once published. So I wrote my own guidelines a few yrs ago. #dns #domains #domainnames kalfeher.com/secure-pract...
kalfeher.com
Secure Practices for Domain Owners
The recommendations contained within this document attempt to provide easy to audit points that any domain owner, regardless of technical capability, can …
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Corey Quinn @quinnypig.com · 03/07/2025
Huge news for my friends at date-a-dog!
The date a dog logo
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Kal Feher @kalfeher.bsky.social · 01/07/2025
I was an internal beta user of Codewhisperer (Q dev now). there were features that should have resonated w/ customers. But that was lost in AI arm wavy crazy talk and rebranding everything Q so now no one knows what the hell Q is.
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Kal Feher @kalfeher.bsky.social · 27/06/2025
My local, saazaa, made it into the top 15 www.theage.com.au/goodfood/mel... it's melbourne. ranking cafes by coffee quality is important #melbourne #coffee #cafe #australia
theage.com.au
These 15 top Melbourne coffee shops and roasters are the crema of the crop
Find a den of dark wood serving long blacks, coffee ceremonies at an Ethiopian cafe and more.
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Kal Feher @kalfeher.bsky.social · 25/06/2025
It’s raining and cold today. Also a breakdown in secret management caused an internal outage. Stressful and miserable day. My colleague has handled it surprisingly well.
#dogs #dogsky #dogsofbluesky
Aussie shepherd sleeping on her back with tongue poking out
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Kal Feher @kalfeher.bsky.social · 24/06/2025
Well you can never have enough single panes of glass. Now you can route to them all
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Kal Feher @kalfeher.bsky.social · 21/06/2025
New zone signing key added to root. Verisign's DNZviz had trouble getting TCP responses at this time. dnsviz.net/d/root/aFUQr... Everything ok now. dnsviz.net/d/root/aFXu9... #dns #dnssec
dnsviz.net
. | DNSViz
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Kal Feher @kalfeher.bsky.social · 20/06/2025
There’s always been politics in RIRs, but monetising IPv4 has introduced some colourful participants. Good reason to speed up #ipv6 adoption 😆
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