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Home/ Blog/ Clear macOS proxy cache, comprehensive list of network configuration reset commands

Clear macOS proxy cache, comprehensive list of network configuration reset commands

PYPROXY PYPROXY · Jun 04, 2025

When troubleshooting network issues on macOS, clearing the proxy cache and resetting the network configuration can often help resolve persistent connectivity problems. macOS uses proxy settings to route network traffic through specific servers for various purposes, such as privacy, security, or content filtering. Over time, these settings can become outdated or corrupted, leading to slower speeds or inability to connect to certain websites. This article provides a detailed guide on how to clear the proxy cache and reset network configurations on macOS. By following these commands and techniques, users can restore their system’s network performance to optimal levels.

Understanding macOS Network Configuration

Before diving into the process of clearing caches and resetting configurations, it's important to understand how macOS handles network settings. macOS uses a variety of configuration files to manage network interfaces, proxy settings, and routing information. The system’s network settings are stored in different locations, including system preferences and cached files that can sometimes become problematic. Regular maintenance of these files can help maintain smooth operation and troubleshooting performance.

Step-by-Step Guide to Clearing Proxy Cache

A proxy server acts as an intermediary between a user’s device and the internet. Proxy settings are often used for security, privacy, or performance reasons. However, if the cached data within the proxy becomes corrupted or outdated, it can result in connectivity issues. Here are the steps to clear the proxy cache in macOS:

1. Open the Terminal Application:

- Launch the “Terminal” application by navigating to Applications > Utilities > Terminal or by searching for it in Spotlight.

2. Flush the DNS Cache:

- The first step in clearing any cached network data is to flush the DNS (Domain Name System) cache. This action ensures that the system is using the most up-to-date DNS entries.

- Run the following command:

```bash

sudo killall -HUP mDNSResponder

```

- Enter your administrator password when prompted. This command resets the mDNSResponder service, which handles DNS queries.

3. Clear the Proxy Cache:

- macOS stores proxy information in system configuration files. To clear these cached proxy settings, run the following commands:

```bash

sudo rm -rf /private/var/db/netinfo/

sudo rm -rf /Library/Preferences/SystemConfiguration/preferences.plist

```

- These commands will remove the stored network configuration files, including proxy cache data, from the system.

4. Restart the System:

- After clearing the proxy cache, restart your Mac to apply the changes and reset the network settings.

Resetting macOS Network Configuration

If clearing the proxy cache doesn’t resolve the issue, resetting the entire network configuration might be necessary. This process removes all custom network settings, including Wi-Fi configurations, VPN settings, and proxy settings. It can be useful for resolving deeper networking issues that can’t be solved by simply clearing the cache.

1. Reset the Network Preferences:

- Go to System Preferences > Network.

- Select the network interface you want to reset (e.g., Wi-Fi or Ethernet).

- Click the gear icon at the bottom of the interface list and select Make Service Inactive.

- Now, remove the selected network interface by clicking the minus (“-”) button.

- Afterward, re-add the network interface by clicking the plus (“+”) button and selecting the appropriate interface.

2. Delete System Configuration Files:

- System configuration files store network settings and preferences. To reset all network settings, you can remove these files manually.

- Run the following commands to delete the configuration files:

```bash

sudo rm -rf /Library/Preferences/SystemConfiguration/

```

- This command will remove all the configuration files that macOS uses to manage network settings. Be cautious when executing this command, as it will reset all network interfaces, including Wi-Fi, Ethernet, VPN, and proxy settings.

3. Reboot the System:

- After deleting the configuration files, restart your Mac to allow the system to create fresh network configuration files.

Additional Network Troubleshooting Tips

If clearing the proxy cache and resetting the network configuration doesn’t fully resolve the issue, here are some additional tips to improve your macOS network experience:

- Check for Software Updates:

Ensure that your macOS is up to date by going to System Preferences > Software Update. Keeping your system updated can address known bugs and improve network stability.

- Reconfigure DNS Settings:

Sometimes, changing the DNS servers can improve network performance. Open System Preferences > Network, select the relevant network interface, click Advanced, and go to the DNS tab. You can add alternative DNS servers, such as Google's public DNS (8.8.8.8 and 8.8.4.4).

- Use Network Diagnostics:

macOS offers built-in diagnostic tools to detect and fix network issues. To access this tool, go to System Preferences > Network and click on Assist me at the bottom. The tool will help you troubleshoot issues related to network connectivity.

- Check Your Router Settings:

In some cases, network issues are caused by problems with the router rather than your Mac. Ensure that your router is functioning correctly by restarting it, checking for firmware updates, and ensuring it’s not overloaded with devices.

Clearing the proxy cache and resetting the network configuration on macOS can be a valuable troubleshooting step when facing persistent network issues. By following the commands and methods outlined in this article, users can restore their network performance and resolve problems related to outdated or corrupted configurations. Regular maintenance of network settings, along with the occasional clearing of caches, ensures that your macOS device remains responsive and connected to the internet with minimal issues.

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