Daily Shaarli

All links of one day in a single page.

March 25, 2025

Tailscale VPN - A Network Engineer's Perspective
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Before we get into what Tailscale is or how it compares to a traditional remote access VPN, let’s take a quick look at Tailscale in action. The main problem Tailscale solves is remote access to your internal workloads.

In my homelab, I have a server running Linux. When I’m on my home network, I can access it directly without any issues. But if I step outside and want to access the same server over the Internet, Tailscale makes that much easier and you can have it up and running in about 10 minutes for free.

It’s No Afghanistan. It’s Still Not Good.

It’s hard to have a conversation with anyone in Washington these days without using Signal. I hate the app. It’s just one more messaging app that must be checked. Everyone in Washington, it seems, has Signal. Government officials use it. Reporters use it. Politicians on Capitol Hill use it. Hillary Clinton used an insecure email server. Everyone else just uses Signal, which, at least, is end-to-end encrypted.

With China thoroughly infiltrating our telecom system, no officials in DC are using built in phone messaging apps or voice to communicate important information now. Apple’s iMessage is robust and secure if the bubbles are blue. But someone may have their iCloud backup turned on, which would capture the chat. What’s App is fine and secure. But, again, someone might have a backup. Signal is secure and once a message is deleted, it is deleted. It is the preferred app.

For members of the Trump Administration, which last term saw rogue embedded progressives leaking classified information and even now has seen ICE raid information leak, bypassing government approved means of communications for Signal makes sense — the rogue bureaucrats provided the incentive.

But that is no excuse to add a reporter to a secure group chat trading information related to bombing the Houthis as the Trump national security team did. //

  • This whole mess really does suggest that the Trump Administration, like the Biden Administration, has no clue how to get the Chinese out of our telecom networks.
We Need to Talk About Jeffrey Goldberg Accidently Being Added to a National Security Chat – RedState
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anon-l6yk
3 hours ago
My take is that this signal app was used extensively during the “Biden” administration and they created the original list of regular participants. How much do you want to bet that Goldberg was a regular participant in those classified briefings during the Biden years and this was a result of an incomplete purge of the unauthorized participants?

DwyerOmega | Blog | What Are Electromagnetic Flow Meters?
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In typical applications, magnetic flow meters are sized so that the velocity at maximum flow is approximately 2-3 meters per second. Differential pressure constraints and/or process conditions may preclude application of this general guideline. //

For slurry service, be sure to size magnetic flow meters to operate above the velocity at which solids settle (typically 1 ft/sec), in order to avoid filling the pipe with solids that can affect the measurement and potentially stop flow. Magnetic flow meters for abrasive service are usually sized to operate at low velocity (typically below 3 ft/sec) to reduce wear. In abrasive slurry service, the flow meter should be operated above the velocity at which solids will settle, despite increased wear.

CIA Director John Ratcliffe Swats Down Signal Story in Senate Intel Hearing – RedState
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Rapid Response 47 @RapidResponse47
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.@CIADirector: "One of the first things that happened when I was confirmed as CIA director was Signal was loaded onto my computer ... One of the things that I was briefed on very early was ... the use of Signal as a permissible work use — it is."

11:03 AM · Mar 25, 2025. //

RATCLIFFE: It is permissible to use to communicate and coordinate for work purposes, provided — provided, Senator — that any decisions that are made are also recorded through formal channels. So, those were procedures that were implemented — my staff implemented those processes, followed those processes, complied with those processes, and finally — just please — so, my communications, to be clear, in a Signal message group, were entirely permissible and lawful — and did not include classified information. //

As Bonchie rightly noted earlier, Goldberg's inclusion on the chat was an unforced error, and frankly, none of the administration should be in contact with him — ever — given his previous bad-faith reporting.

But as Ratcliffe's testimony clearly demonstrates, the use of the app itself by officials for non-classified communication and coordinating for work purposes is both allowed and legal — just as it was under the Biden administration. Hopefully, this will serve as a valuable lesson and help underscore the importance of mindfulness as to proper channels and participants when officials communicate with one another.