Network preferences are crucial for ensuring that your macOS system connects to the internet and other networks efficiently and securely. This article will guide you through the process of managing and configuring network preferences on macOS, highlighting the importance of these settings for optimal network performance and security. Adjustments have been made to align the topic with the macOS environment, offering practical examples and commands specific to macOS.

Examples:

1. Accessing Network Preferences via System Preferences:

   • Open "System Preferences" from the Apple menu.
   • Click on "Network."
   • Here, you can see a list of network interfaces (Wi-Fi, Ethernet, etc.). Select the interface you want to configure.

2. Configuring Wi-Fi Settings:

   • In the Network window, select "Wi-Fi" from the list on the left.
   • Click on "Advanced" to see more options.
   • Here, you can manage preferred networks, set up proxies, and configure TCP/IP settings.

3. Using Terminal to Manage Network Preferences:

   • List Network Services:

     networksetup -listallnetworkservices

   • Configure a Static IP Address:

     sudo networksetup -setmanual "Wi-Fi" 192.168.1.100 255.255.255.0 192.168.1.1

   • Set DNS Servers:

     sudo networksetup -setdnsservers "Wi-Fi" 8.8.8.8 8.8.4.4

   • Enable/Disable Wi-Fi:

     sudo networksetup -setairportpower en0 on
     sudo networksetup -setairportpower en0 off

4. Using Network Diagnostics:

   • Open "System Preferences" and go to "Network."
   • Click on the "Assist me" button and then "Diagnostics."
   • Follow the on-screen instructions to diagnose and fix network issues.

5. Advanced Network Configuration:

   • Create a New Network Location:

     sudo networksetup -createlocation "Work" populate
     sudo networksetup -switchtolocation "Work"

   • Remove a Network Location:

     sudo networksetup -deletelocation "Work"