What is mDNSResponder on a Mac?

What is mDNSResponder on a Mac?

mDNSResponder stands for “Multicast DNS Responder.” It is an essential system app that powers some core macOS features and functionalities. If your Mac and another mDNSResponder device are on the same network, mDNSResponder is the background process that lets both devices detect and communicate with each other.

How do I remove mDNSResponder from my Mac?

Though we have learned about how it can go into your processes and storage you can opt to disable mDNSResponder for quite some time and turn it back on whenever you like: Open Terminal App then Key In: sudo launchctl unload -w /System/Library/LaunchDaemons/com. apple.

Should I disable Bonjour Mac?

Disable Bonjour: In order to perform the tasks Bonjour is designed to perform it automatically shares the Mac system related information on the designated network. In the case the network is not trusted one might want to reconsider using Bonjour and disable it.

How do you add a DNS entry on a Mac?

How do I change DNS on Mac?

  1. System Preferences.
  2. Network.
  3. Click Advanced.
  4. Click the DNS tab.
  5. Click the little + sign at the lower left to add a new DNS server.
  6. Type in the numbers of a public DNS server (see our suggestions in the Windows section above)
  7. Click OK.
  8. Click Apply.

What is MDNSResponder EXE?

What exactly is mDNSResponder.exe? MDNSResponder, also known as Bonjour, is Apple’s native zero-configuration networking process for Mac that was ported over to Windows and associated with MDNSNSP. DLL. On a Mac or iOS device, this program is used for networking nearly everything.

What is the root user on Mac?

Mac administrators can use the root user account to perform tasks that require access to more areas of the system. The user account named ”root” is a superuser with read and write privileges to more areas of the system, including files in other macOS user accounts. The root user is disabled by default.

What is mDNSResponder EXE?

Should I disable Bonjour service?

Bonjour is an important part of iMacs and Mac notebook computers. Parts of Apple’s macOS operating system apps and software depend on Bonjour, so removing it will create serious problems on your Mac. Apps such as iTunes and Safari use Bonjour to communicate with other devices on your company network.

Do I need Bonjour on my Windows PC?

Is Bonjour necessary on Windows 10? Windows users have a choice to download Bonjour themselves. However, if you’re in an environment where Apple devices such as MacBooks or iPhones aren’t in use, you most likely don’t need it.

What is the best DNS server to use for Mac?

What is DNS?

  1. Cloudflare. Primary, secondary DNS servers: and
  2. Google Public DNS. Primary, secondary DNS servers: and
  3. Quad9. Primary, secondary DNS servers: and
  4. OpenDNS. Primary, secondary DNS servers: and
  5. Comodo Secure DNS.

How do I change my DNS to 8.8 8.8 Mac?


  1. Go to Settings > Wi-Fi.
  2. Tap the ⓘ icon next to the Wi-Fi network that you want to change DNS servers for. Scroll down to find the DNS section and tap Configure DNS.
  3. Tap Manual and add Google IP addresses. Optionally you can also remove all default DNS servers in the list. For IPv4: and/or

Is mDNSResponder exe a virus?

You’re probably reading this because you found mDNSResponder.exe running on your computer and you want to know what it is, and why it is there. Fortunately, the process is not a virus and it was developed by Apple so no need to panic.

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