osxhub

Two working macOS commands shown in green — netstat -an piped to grep LISTEN to list listening ports, and lsof -i to find the process on a port — above three netstat flags that exit 0 while printing unrelated output

How to List Listening Ports and Find the Process on macOS

by osxhub
July 17, 2026July 17, 2026

Two questions send most people to netstat on a Mac: which ports are listening, and which process holds one open. On macOS 26.5.2, the first has a one-line answer; the second doesn’t involve netstat at all: List every listening port: netstat… Read More

Breakdown of the 37 Mac models Apple lists as compatible with macOS Tahoe 26 across 7 product families, with 4 still Intel-based

macOS Tahoe Compatibility: Every Supported Mac Model

by osxhub
July 17, 2026July 17, 2026

Whether your Mac can run macOS Tahoe 26 is not a judgment call — Apple publishes a fixed list of model names, and a machine is either on it or it isn’t. The list below reproduces Apple’s compatibility page exactly as Apple words it,… Read More

Side-by-side comparison of startup recovery paths: Apple silicon uses the power button for startup options, while Intel Macs use Option, Command-R and D key combinations

Mac Folder With Question Mark: What It Means and Fixes

by osxhub
July 17, 2026July 17, 2026

A folder with a flashing question mark is one of the few Mac startup screens that says exactly what it means, once you know how to read it. Apple’s support documentation states that it “means that your computer’s startup… Read More

Mac Screen Keeps Locking or Monitor Keeps Turning Off? The Real Fix

by osxhub
July 9, 2026July 9, 2026

I ran into the "display set to Never but the Mac locks anyway" problem myself on a MacBook Pro (M3 Max) right after updating to macOS 26.5.2. After testing this across several of my own Macs and reproducing it under different conditions,… Read More

macOS Tahoe Dock stuck on MacBook when using external monitor fix

Mac Dock Not Moving to External Display on macOS Tahoe [Fix]

by osxhub
July 1, 2026July 1, 2026

If you’ve spent the last hour dragging your cursor to the bottom of your external monitor hoping the Dock will finally follow — and it hasn’t — you’re not doing anything wrong. This is a confirmed bug in macOS Tahoe (26.x),… Read More

Fix “packages_dispatcher is not responding” Error in macOS Packages App | 2025 Solution

by osxhub
December 6, 2025July 17, 2026

If you’re using Packages (the popular macOS installer creation tool by Stéphane Sudre) and suddenly encounter the frustrating “packages_dispatcher is not responding” error during build, you’re not alone.… Read More

mac-boot-issues-apple-configurator-recovery-guide

How to Fix Mac Boot Issues After System Update Using Apple Configurator

by osxhub
August 30, 2025July 17, 2026

This page has been rewritten. The version published here on August 30, 2025 recommended a step that would have erased a reader’s disk, gave a key combination for buttons no Mac has, and printed two shell commands that aren’t real.… Read More

fix-mac-startup-error-2003f-recovery-mode

How to Fix Mac Startup Error -2003F in Recovery Mode | 2025 Complete Guide

by osxhub
August 7, 2025July 17, 2026

If your Intel Mac stops at a spinning globe with an exclamation point and the code -2003F, that number is doing less work than it appears to. Across the Apple support pages that deal with this screen, -2003F is named once — inside a parenthetical… Read More

macOS Base64 Encoding Returns Wrong Result: Complete Fix Guide for Sequoia 2025

by osxhub
August 4, 2025July 17, 2026

If your Basic Auth header is rejected and the base64 string ends in K, base64 is not the thing that broke. It encoded exactly what you handed it — and what you handed it had a newline on the end. The culprit is echo or the <<< here-string… Read More

Fix “Apple Remote Desktop or Another Administration Application is Currently Running” Error

by osxhub
July 4, 2025July 17, 2026

If you hit “Apple Remote Desktop or another administration application is currently running” and went looking for a fix, you almost certainly landed on some version of the same two steps: kill the Remote Desktop processes, then… Read More