The macOS Application Firewall controls which applications are allowed to accept incoming network connections. It is different from a traditional port-based firewall.Enable the FirewallGo to System Settings > Network > Firewall and toggle it on.Enable Stealth ModeClick Options and enable Enable stealth mode to prevent your Mac from responding to ping requests.Manage App PermissionsUnder Options, you can allow or…
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macOS Guides
macOS setup, optimization, and maintenance.
Too many login items slow down your Mac's boot time. macOS Ventura reorganized startup management under a new System Settings location.View Login ItemsGo to System Settings > General > Login Items. Here you see apps that open at login and background services.Remove an ItemSelect the item and click the minus (-) button to remove it.Via Terminalosascript -e 'tell application "System Events" to get the name of every login…
The Terminal app gives you direct access to the Unix shell underneath macOS. This guide covers the essential commands every Mac user should know.Open TerminalFind it in Applications > Utilities > Terminal or search with Spotlight (Cmd+Space).Essential Commandspwd # Show current directory ls -la # List files with details cd ~/Desktop # Change directory mkdir myfolder # Create a folder cp file.txt backup.txt # Copy a file rm file.txt #…
Time Machine is macOS's built-in backup solution. It automatically backs up your entire Mac to an external drive or a network location.Connect a Backup DriveConnect an external drive with enough space (at least the same size as your Mac's storage).Configure Time MachineGo to System Settings > General > Time Machine, click Add Backup Disk, and select your drive.Manual Backuptmutil startbackupExclude…
FileVault is the built-in full-disk encryption feature in macOS. It protects all data on your Mac by encrypting it with XTS-AES-128 encryption.Enable FileVaultGo to System Settings > Privacy & Security > FileVault and click Turn On.Save the Recovery KeyYou can store the key with Apple or manage it locally. Store it securely — losing it means losing access to all your data.Check Encryption ProgressEncryption happens in…