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Leo Singleton

@leosingleton.com
384 followers 457 following 33 posts

SVP, Reliability @ Quvia. Previously Distinguished Engineer @ Citrix. Fort Lauderdale, FL. Georgia Tech alum.

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Reposted by Leo Singleton
Runway Girl @runwaygirl.com · 23/03/2026
Airlines have an opportunity to rethink who controls the cabin connectivity layer, putting themselves in the driver’s seat. We sit down with Quvia to learn how it's 'Grid' and 'Sync' solutions can help airlines follow the cruise industry and take control. runwaygirlnetwork.com/2026/03/how-... #PaxEx
runwaygirlnetwork.com
How Quvia helps airlines throw out the IFC playbook and take control - Runway Girl
Using Quvia Sync, an edge to cloud platform, coupled with network orchestration, airlines can take control of the cabin connectivity layer.
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Leo Singleton @leosingleton.com · 06/01/2025
@plessinger.com I discussed it with the engineering team that built Policy Sets and they think there's a new delay in 2402 to merge any changes into the policy blob on the DDC. Expect an update to the docs. You were right--timing-wise, the expected delay should be 0 to 5 minutes now.
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Leo Singleton @leosingleton.com · 21/12/2024
There were a lot of changes in this area between 2203 and 2402 with the addition of Policy Sets. There are now multiple Studio policy blobs in a site, not just one. Perhaps something here changed the timing. I'll see what I can find, but it may take a while due to the holidays.
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Leo Singleton @leosingleton.com · 21/12/2024
After a policy change, the update isn't pushed immediately. It instead waits for the next VDA registration, session launch, or some maximum time to push the updated policy blob to the VDA.
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Leo Singleton @leosingleton.com · 21/12/2024
Understood. The way Studio policies work, there's a single binary BLOB of policies in the SQL database. The same policy blob is cached on every VDA's local disk (identity disk in the case of non-persistent MCS/PVS) by the Broker Agent service.
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Leo Singleton @leosingleton.com · 21/12/2024
A link to the forum posts, I mean. You're right about the expected behavior. All user policies should be reevaluated at logon, and _most_ get reevaluated on reconnect.
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Leo Singleton @leosingleton.com · 21/12/2024
Do you have a link? Is there any particular version or policy where it seems to have regressed? Do you know if the same issue exists with local/AD GPO instead of Studio policies?
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Leo Singleton @leosingleton.com · 20/12/2024
So you’re saying you wouldn’t recommend this page to a friend?
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Leo Singleton @leosingleton.com · 17/12/2024
Possibly. Although it may be more of an illusion within the government itself to avoid congressional approvals.
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Leo Singleton @leosingleton.com · 16/12/2024
I’ve been happy with the TP-Link fanless PoE switches at home. Silent so you don’t have to keep them in the attic or closet, but PoE eliminates a lot of extra power cables.
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Leo Singleton @leosingleton.com · 14/12/2024
Your freeze period is longer than an OS patching cycle?
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Leo Singleton @leosingleton.com · 14/12/2024
If your budget can handle it, just buy enough to make it between patch Tuesdays. Works even better.
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Leo Singleton @leosingleton.com · 13/12/2024
You can be an electrician though.
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Leo Singleton @leosingleton.com · 12/12/2024
My favorite automation is to create a single "OFF" task... It's awesome to be able to press a single button on the phone at the end of the day, and turn off all the things the wife and kids left on all over the house throughout the day. 😀
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Leo Singleton @leosingleton.com · 12/12/2024
Personally, I've gone with Hue lights for indoors (mostly white, but color is nice for adjusting the color temperature) and Z-Wave plugs for outdoors. I'm not big on the automation side, but it's great for putting switches and lights where the house wasn't wired the way I want it.
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Leo Singleton @leosingleton.com · 12/12/2024
I’m actually a big fan of Color Oracle, which does the exact opposite. From the software development side, it’s extremely useful to see how a UI may look to users with colorblindness. colororacle.org
colororacle.org
Color Oracle | Color Oracle
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Leo Singleton @leosingleton.com · 28/11/2024
I had good success with this open source app when measuring furniture for the new house. Should be pretty easy to measure out the dimensions and visualize it. www.sweethome3d.com
sweethome3d.com
Sweet Home 3D - Draw floor plans and arrange furniture freely
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Leo Singleton @leosingleton.com · 28/11/2024
I don’t know… lately TLS certs have started giving DNS some serious competition.
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Leo Singleton @leosingleton.com · 28/11/2024
I decided to take a chance on the pumpkin cheesecake at Costco on Monday. It may be the one exception. It’s already half gone before Thanksgiving. 😀
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Leo Singleton @leosingleton.com · 26/11/2024
Cloudflare is one of the few vendors with RCAs worth reading for fun. Even if you don’t use the service, they’re brutally honest and an educational lesson in resilient cloud architecture.
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Leo Singleton @leosingleton.com · 26/11/2024
I’ve been out on leave for a month and a half and busy with kids so 🤷‍♂️
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Leo Singleton @leosingleton.com · 26/11/2024
Thanks Christian! I saw you recently moved to Cloudflare. How's the new job?
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Leo Singleton @leosingleton.com · 26/11/2024
It's very common in Europe, and kinda nice actually. Here at FLL, there's always a traffic jam trying to get past the Spirit terminal to get out. Common enough that wikipedia has a whole page on it... en.wikipedia.org/wiki/Low-cos...
en.wikipedia.org
Low-cost carrier terminal - Wikipedia
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Leo Singleton @leosingleton.com · 25/11/2024
This is also why I set up a custom domain, just as I do with email. .bsky.social is like signing up for an gmail.com address. If another provider comes along, you have to change your handle. With a custom domain, you have the ability to update DNS and seamlessly move. bsky.social/about/blog/4...
bsky.social
How to verify your Bluesky account - Bluesky
Here's how to verify your Bluesky account by setting your website as your username.
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Leo Singleton @leosingleton.com · 25/11/2024
It's exciting to see decentralization catching on. Hopefully the AT protocol becomes like SMTP and email, where I use Gmail and others use O365. We have different app experiences, spam filtering, etc., but since the protocol is open, they interoperate and the lack of lock-in leads to innovation.
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Leo Singleton @leosingleton.com · 25/11/2024
My focus is primarily the management components of the product, starting with IMA, then FMA, and then the buildout of the cloud Citrix DaaS service with many millions of active users.
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Leo Singleton @leosingleton.com · 25/11/2024
Wow, BlueSky seems to be taking off. I recognize a lot of new followers, but for anyone new, a short intro... I'm Leo. For the past 18 years at Citrix, I've worked on MetaFrame/CPS/XenApp/XenDesktop/CVAD/DaaS. Currently out on paternity leave (dad to a 4-year-old, 2, and newborn).
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Leo Singleton @leosingleton.com · 25/11/2024
👋
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Leo Singleton @leosingleton.com · 24/11/2024
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Leo Singleton @leosingleton.com · 23/11/2024
I actually discovered iced espresso recently. It’s really easy to make with a machine at home and a great afternoon caffeine kick.
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Leo Singleton @leosingleton.com · 23/11/2024
It’s good to get them checked out by a doctor, as it can lead to an ear infection or other serious complications. But usually, they just tell you to keep your kid home and let it runs its course. There’s not much medication-wise for kids under 2.
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Leo Singleton @leosingleton.com · 23/11/2024
Yes, that’s an experience. Fortunately most are just the generic cold viruses that they get A LOT. Even more frequently with multiple kids, or whenever they start daycare. The kids react with much higher fevers than adults (103-104F) and it typically lasts longer.
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Leo Singleton @leosingleton.com · 22/11/2024
Too much to write here, but you’re right about the sleep. Newborns are surprisingly loud. I can sleep through it fine and only wake up for the real cries, but my wife can’t. I think the next big surprises come around sickness and childcare. Both are huge challenges as a new parent.
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Leo Singleton @leosingleton.com · 22/11/2024
Congrats! I’m in the same situation, except on leave for our third right now. You’ll get used to it, and the blur wears off soon enough.
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