In macOS, the Preview app is a little-known powerhouse. In this article, the author details how to create (app/website/etc/) icons from other graphics.
Per support, there is an IPv6 issue with some networks (apparently Cisco networks are most commonly affected).
Apple has a KB article on disabling IPv6 in macOS.
I have seen a few “infected” iOS devices in the past couple of weeks. Yes, for real. After so many years of being nearly bulletproof to normal malware, the iPhones I’ve worked on were compromised by configuration profiles. To remove the proxy or other malicious settings, the profile has to be deleted.
This Apple KB article details how to remove an app that has installed a profile on your iOS device. Since macOS now uses configuration profiles to ease large deployments, so it’s likely this will become a common threat vector on Apple’s desktop and notebook computers.
- Go to Settings > General > Device Management, Profile Management, or Profile & Device Management, then tap on the app’s configuration profile.
- Tap Delete Profile. If asked, enter your device passcode, then tap Delete.
At work, I have to manage several Office 365 tenants. While many tasks can be completed via the GUI, there are times PowerShell commands are required. That is fine on a Windows 10 computer, since PowerShell is part of the operating system.
However, I prefer to use the company’s iMac. While I was working on an issue with one of our clients, I found an article from Microsoft about using homebrew to install a PowerShell module on macOS!
When I started in IT, I don’t think that would have ever happened.
While Apple is historically responsible for typography and fonts in computer systems, font management on the Mac can be confusing. To help with that issue, here are a few articles that have been useful:
At work, I was scripting the connection to an FTP server and downloading a website backup.
However, the command-line FTP app was removed from recent versions of macOS. A conversation on Stack Exchange explained how to download and install the command-line FTP application.
Now the pieces are in place and that task is automated!
In macOS 10.13, Apple has removed the telnet command Telnet. The NC command is available though. This article from HCS Technology Group explains further.
A time-honored step for troubleshooting Macs. Done by holding Option+Command+P+R during startup.
From the Apple KB article:
If you experience issues related to settings stored in NVRAM, resetting NVRAM might help. NVRAM (nonvolatile random-access memory) is a small amount of memory that your Mac uses to store certain settings and access them quickly. Settings that can be stored in NVRAM include sound volume, display resolution, startup-disk selection, time zone, and recent kernel panic information. The settings stored in NVRAM depend on your Mac and the devices you're using with your Mac. If you experience issues related to these settings or others, resetting NVRAM might help. For example, if your Mac starts up from a disk other than the one selected in Startup Disk preferences, or a question mark icon briefly appears before your Mac starts up, you might need to reset NVRAM. Older Mac computers store similar information in PRAM (Parameter RAM) instead of NVRAM. The steps for resetting PRAM are the same as the steps for resetting NVRAM.