Prior to updating to Catalina, I had successfully disabled Bonjour advertising on my server by using the following command in the terminal:
defaults write /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements -bool YES
However this no longer works in Catalina. I run the command, using sudo, but the computer continues to advertise itself on Bonjour. How do I disable this in Catalina?
Before moving any service plist file, it is necessity to discharge the service before changing of anything.
To unload the mDNSResponder service issue:
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist
Insert into "NoMulticastAdvertisements" for configuration:
sudo defaults write /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist ProgramArguments -array-add "-NoMulticastAdvertisements"
Reload service without Bonjour Advertisement:
sudo launchctl load /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist
Check Text ( C-75751r1_chk )
How to check the multi tasker Bonjour advertising has been disabled, you have to run the following command;
/usr/bin/sudo /usr/bin/defaults read /Library/Preferences/com.apple.mDNSResponder | /usr/bin/grep NoMulticastAdvertisements
If you finds any error in the returned or nothing would be returned, moreover “NoMulticastAdvertisements” is not set on the ‘1’, that’s the finding.
Fix Text (F-82705r1_fix)
How to configure Bonjour Disable the multicast advertising, you have to run the following command;
/usr/bin/sudo /usr/bin/defaults write /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements -bool true
Restart your system so that the update will take their action.
Jass Smith AppDeveloper
NB Unloading mDNSResponder requires disabling system integrity protection. Otherwise I think this worked. Thank you!
How do you disable Bonjour advertising?
