When does Messages message via iMessage vs. SMS?

This is probably an embarrassingly noobish question. I sent a standard SMS text message from my iPhone 6 to a colleague's iPhone, who mentioned that my message was green and not blue, and that meant I hadn't activated som…

When does Messages message via iMessage vs. SMS?

This is probably an embarrassingly noobish question. I sent a standard SMS text message from my iPhone 6 to a colleague's iPhone, who mentioned that my message was green and not blue, and that meant I hadn't activated som…

When does Messages message via iMessage vs. SMS?

This is probably an embarrassingly noobish question. I sent a standard SMS text message from my iPhone 6 to a colleague's iPhone, who mentioned that my message was green and not blue, and that meant I hadn't activated som…

How to prepend a character to start of each line in 250,000+ line file using a script?

I have text file with 250,000 lines - and I need to append the same single character at the start of each line. I have tried to use various multiline /column edit plugins in Atom and Sublime but they just hang - I guess du…

DisplayLink v5.2.1 USB Software Update for macOS Catalina and Mojave

See post for info and download. (Includes a note on enabling kernel extension, and screen recording.)

How to Convert HEIC to JPG on Mac Easily with Preview

You may occasionally need to convert an HEIC file to JPEG on the Mac, perhaps because someone sent you an iPhone picture in the HEIF / HEIC file format, for compatibility purposes, or for any other reason. This article will show you how to concert a…

Antivirus software for iOS and an iPad

I just started at a new job. The IT manager gave me the task of deploying 50 iPads using JAMF. Now my manager wants to deploy antivirus software to the iPads. I said huh?? He insists that we push out an antivirus program…

Can I have iOS Automation shortcuts run automatically?

I've been having a problem where sometimes I'll forget that my iPhone's volume is set pretty high from a previous use. When I put my AirPods in for a phone call or to listen to music, the volume isn't automatically lowered…

Can I have iOS Automation shortcuts run automatically?

I've been having a problem where sometimes I'll forget that my iPhone's volume is set pretty high from a previous use. When I put my AirPods in for a phone call or to listen to music, the volume isn't automatically lowered…

SSH connection using public/private key authentication fails only for port 22

I have been struggling for hours to make sense of a specific failure from connecting to an SSH server from one recent macOS system. ssh user@machine -p 22 I have added all keys to ~/.ssh/authorized_keys on the target ma…

SSH connection using public/private key authentication fails only for port 22

I have been struggling for hours to make sense of a specific failure from connecting to an SSH server from one recent macOS system. ssh user@machine -p 22 I have added all keys to ~/.ssh/authorized_keys on the target ma…

Where does MacOS store old versions of Preview edited images?

If you open an image in Preview and View->Show Markup Toolbar and then add some markup.Then close Preview you'll see the file has been edited If I then double click the picture, which relaunches Preview there's a File-…

Where does MacOS store old versions of Preview edited images?

If you open an image in Preview and View->Show Markup Toolbar and then add some markup.Then close Preview you'll see the file has been edited If I then double click the picture, which relaunches Preview there's a File-…

Where does MacOS store old versions of Preview edited images?

If you open an image in Preview and View->Show Markup Toolbar and then add some markup. Then close Preview you'll see the file has been edited If I then double click the picture, which relaunches Preview there's a Fi…

Is there a way to see if a macbook had a time machine backup done?

I was wondering if there's any way to see if someone did a Time Machine backup on a macbook.

Is there an official reason why Apple does not allow to restrict Wi-Fi access to a specific app on iOS?

According to: Restrict certain apps from using Wi-Fi (internet) on iOS 8 https://forums.macrumors.com/threads/iphone-sold-in-china-has-a-unique-feature.2030268/ https://discussions.apple.com/thread/6645022 restricting …

How to Delete Siri & Dictation History on Mac and Opt-Out of Audio Recording Storage

Want to delete and erase all Siri and Dictation history associated with a Mac from Apple servers? Additionally, can opt out of future audio storage and review of Siri recordings from a Mac. You can do both of these with the latest MacOS system softw…

ssh VerifyHostKeyDNS not working

I'm stuck figuring out why ssh is unable to verify my SSHFP entries. VerifyHostKeyDNS=yes is set in my ~/.ssh/config The Zone is properly signed as verified with https://dnssec-analyzer.verisignlabs.com. SSHFP entries …

Microsoft Surface Laptop 3 & Surface Pro X Design Review: Upgrades & Repairs Now Possible!

Why are some System Preferences icons "Generic" in macOS 10.15 Catalina?

Something weird is going on with the Icons for a few of the built-in System Preference prefPanes in macOS 10.15.x Catalina. For example, "Bluetooth" and "Internet Accounts". When I search Spotlight for these, the proper ic…

What are the differences between Apple Thunderbolt Displays during their production years from 2011 to 2016?

I need to buy a refurbished Thunderbolt Display to use with my (late 2015) MBP. I would like to know what are the differences between Thunderbolt Displays that were produced during 2011-2016?