Bilow Kormeeraha Hawshaada^{(Activity Monitor)} Mac , oo waxaad hubtaa inaad hesho dhowr habraac oo leh calaamado qarsoodi ah. Waxaan daabacnay qaar ka mid ah sharraxayaasha si faahfaahsan waxa qaar ka mid ah hababka nidaamkan ( WindowServer iyo kernel_task ) ay ku sameeyaan Mac kaaga . Maqaalkan, waxaan kaga hadli doonaa mDNSResponder.

Waa maxay mDNSResponder?

mDNSResponder waxay u taagan tahay "Jawaabiyaha DNS Multicast." Waa app nidaam lagama maarmaan ah oo awood u leh qaar ka mid ah astaamaha macOS iyo shaqeynta. Haddii Mac -gaagu iyo aaladaha kale ee mDNSResponder ay ku wada jiraan shabakad isku mid ah, mDNSResponder waa habka asalka ah ee u oggolaanaya labada qalabba inay ogaadaan oo ay wada xidhiidhaan midba midka kale.

Haa, adeegga mDNSResponder wuxuu u ekaan karaa mid aan la aqoon, laakiin waxay u badan tahay inaad isticmaasho maalin kasta adoon ogaanin. Haddii aad waligaa Mac -gaaga ku xidhidhisay daabacaha ku shaqeeya AirPrint ee shabakada deegaankaaga,mDNSReponder ayaa taas ka dhigay. Nidaamku wuxuu kaloo fududeeyaa helitaanka aaladaha ku habboon AirPlay^{(AirPlay-compatible devices)} (tusaale, Apple TV) ee Mac-gaaga.

mDNSResponder waxay isticmaashaa borotokoolka isku xirka Bonjour^{(Bonjour networking protocol)} si uu si toos ah u aqoonsado aaladaha ku xiran aaladaha Apple .

" Bonjour " waxay qeexaysaa tignoolajiyada isku xidhka ee mDNSResponder lagu dhisay. Bonjour borotokoolka ayaa baahiya helitaanka Mac kaaga shabakad maxalli ah. Waxa kale oo ay u ogolaataa qalabkaaga in uu si la isku halleyn karo ula xiriiro oo uu xogta is dhaafsado isaga oo isticmaalaya ciwaannada IP-ga^{(IP addresses)} .

Marka lagu xidho shabakad fiilaysan ama wireless, Bonjour waxay si joogto ah u baadhaysaa shabakada aaladaha kale ee ku habboon Bonjour . Ogsoonow in Bonjour uu u shaqeeyo sidii mDNSResponder ee Mac . In kasta oo labada erey inta badan loo isticmaalo si isku beddelasho ah, waxaad heli doontaa markaad bilowdo Kormeerka Hawsha^{(Activity Monitor)} waa “mDNSResponder.”

Abka^(Apps) iyo adeegyada (tusaale, iTunes) ee ku jira aaladaha aan ahayn Apple waxa kale oo ay la xidhiidhi karaan oo ay ku kala beddelan karaan xogta Mac kaaga iyaga oo isticmaalaya borotokoolka Bonjour . Baro wax badan oo ku saabsan sida adeega Bonjour ugu shaqeeyo Windows 10^{(how the Bonjour service works in Windows 10)} .

mDNSResponder ma badbaado baa?

mDNSResponder waa shay lagama maarmaan ah oo awood u leh "Bonjour borotokool" qalabka Apple . Waa adeeg sharci ah oo ay samaysay Apple , markaa ma jirto wax aad ka walwasho. Nidaamku wuxuu ku socdaa gadaasha wuxuuna si marmar ah u raadiyaa aaladaha ku qalabaysan Bonjour ee^{(Bonjour-equipped)} shabakada deegaankaaga.

In kasta oo uu yahay nidaam nadaameed nabdoon oo aan dhib lahayn, waxaan la kulannay isticmaalayaasha Mac qaarkood kuwaas oo soo sheegay mDNSResponder waxay isticmaashaa ilaa 100% isticmaalka CPU waxayna ^(CPU)yaraynaysaa xawaaraha Wi-Fi^{(reduces Wi-Fi speed)} . 

Halkan, waxaan ku dabooleynaa qaar ka mid ah hagaajinta cilad-raadinta kuwaas oo gacan ka geysan kara soo celinta mDNSResponder sidii caadiga ahayd ee Mac kaaga .

Hagaaji mDNSResponder

Haddii ay dhibaato ka jirto mDNSResponder, waxaa laga yaabaa inaad la kulanto dhibaato adoo isticmaalaya adeegyada faylalka-wadaaga, barnaamijyada wadaaga warbaahinta, iyo adeegyada wadaagga daabacaha sida AirPrint . Hagaajinta soo socota waxay tirtiri kartaa cilladaha saameeya hawlgalka mDNSResponder ee Mac kaaga .

1. Xoog u Jooji mDNSResponder^{(1. Force Quit mDNSResponder)}

Xoog-joojinta mDNSResponder waxay runtii joojin doontaa adeegga, laakiin kaliya si kooban. macOS wuxuu dib u bilaabi doonaa mDNSResponder isla markaaba sababtoo ah waa nidaam nidaam oo muhiim ah. Si kastaba ha ahaatee, hawlgalku waxa uu soo kiciyaa mDNSResponder waxanan rajaynaynaa in uu hagaajiyo arimaha keenaya in habka uu xumaado.

1. Bilow Kormeeraha Hawsha^{(Activity Monitor)} , laba-guji mDNSResponder , oo dooro Jooji^(Quit) .

1. Dooro Xoog Joojin^{(Force Quit)} .

Madaxa qaybta CPU iyo Network ee Kormeerka Hawsha^{(Activity Monitor)} oo hubi haddii xoog joojinta mDNSReponder ay dejisay adeegga. Haddi aanay waxba is bedelin, dib u billow Mac -gaga ama u gal ^(Mac)Mode Safe .

2. Dib u bilow Mac-gaga^{(2. Restart Your Mac)}

Xir dhammaan codsiyada firfircoon, dhagsii astaanta Apple ee^{(Apple logo)} ku taal bar menu-ka, oo dooro Dib u bilow^(Restart) . Haddii mDNSResponder uu sii wado inuu u dhaqmo si aan caadi ahayn, isku day inaad Mac -gaaga u geliso Habka Badbaadada^{(Safe Mode)} ah .

Dami Mac kaaga oo sug inta uu gabi ahaanba xidho. Dabadeed^(Afterward) , taabo badhanka awooda oo isla markiiba qabso furaha Shift . Sii daa furaha Shift marka uu daaqada galitaanka ka soo muuqato shaashadda.

Haddii Mac-gaagu isticmaalo chip-ka M1 Silicon^{(M1 Silicon chip)} , xidh oo sug ilaa 10 – 20 sekan. Dabadeed, taabo oo hay batoonka awoodda^{(power button)} ilaa uu ka muuqanayo daaqadda fursadaha bilowga ah ee shaashadda. Dooro diskka bilowga ah ee aad door bidayso, qabo furaha Shift , dhagsii Continue in Mode Safe^{(Continue in Safe Mode)} , oo sii daa furaha Shift -ka marka shaashadda soo galku soo gasho shaashadda. 

Geli eraygaaga sirta ah, dib u billow Mac gaaga si caadi ah ( calaamada Apple^{(Apple logo)} > Dib u bilaw^(Restart) ), oo hubi haddii taasi ay dhimayso isticmaalka mDNSResponder CPU iyo isticmaalka shabakada

3. Dami Firewall^{(3. Disable Firewall)}

Dab-damiska qolo saddexaad^{(Third-party firewalls)} ayaa faragelin kara aaladaha ku wada xiriira shabakadda deegaankaaga. Haddii aad mid isticmaasho, dami oo hubi haddii taasi xalliso dhibaatada. Waa inaad sidoo kale hubisaa in -ku-dhismay macOS firewall-^{(built-in macOS firewall)} ka uusan xannibin isku-xiryada soo socda.

1. Tag Dookhyada Nidaamka^{(System Preferences)} > Amniga & Qarsoodiga^{(Security & Privacy)} > Firewall .
2. Guji summada qufulka^{(lock icon)} ee ku yaal geeska bidix ee hoose, geli eraygaaga sirta ah ee Mac (ama isticmaal ID Touch), oo dhagsii ikhtiyaarrada Firewall^{(Firewall Options)} .

1. Ka saar xannibista dhammaan xidhiidhada soo galaya^{(Block all incoming connections)} oo dooro OK .

4. Dami oo dib u dami mDNSResponder^{(4. Disable and Re-Enable mDNSResponder)}

Marmar dhif ah in mDNSResponder ay si weyn u isticmaasho agabka nidaamka, curyaaminta iyo dib-u-kicinta adeega ayaa xalin karta dhibaatada.

Fiiro gaar ah:^(Note:) Waxaad u baahan doontaa inaad si ku meel gaadh ah u damiso Ilaalinta Wanaagga Nidaamka (SIP)^{(temporarily disable System Integrity Protection (SIP))} ka hor intaadan dib u hawlgelin mDNSResponder. SIP waa borotokoolka ilaalinta ka hortagaysa fulinta koodka aan la fasixin ee macOS.

1. Tag Finder > Applications > Utilities oo bilow Terminal .

1. Ku dheji amarka hoose ee Terminal console oo tabo Gelida^(Enter) .

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.mDNSresponder.plist

1. Geli furahaaga Mac oo taabo Geli^(Enter) si aad u sii wadato.

Si ka duwan Windows , barnaamijyo badan oo macOS iyo adeegyo ah ayaa u baahan mDNSResponder inuu si sax ah u shaqeeyo. Markaa, kuma talineyno in mDNSResponder lagu sii naafoobo muddo dheer. Sug^(Wait) hal daqiiqo oo u gudub tallaabada xigta si aad dib ugu hawlgeliso adeegga.

1. Ku dheji amarka hoose ee console oo tabo Gelida^(Enter) .

sudo launchctl load -w/System/Library/LaunchDaemons/com.apple.mDNSresponder.plist

1. Geli furahaaga Mac oo taabo Gelida^(Enter) .

mDNSResponder Demystified

Si loo soo koobo, mDNSResponder waa hannaan badbaado leh oo ka caawinaya Mac -gaaga in uu ku xidhmo oo uu kula xidhiidho qalabka kale. Haddii mDNSResponder u dhaqmo si aan caadi ahayn, ugu yaraan mid ka mid ah hagaajinta cilad-bixinta ee kor ku xusan waa inay caadi ka dhigtaa hawlaheeda.

What is mDNSResponder on Mac and Is It Safe?

Launch your Mac’s Activity Monitor, and you’re sure to find several processeѕ with cryptic labels. We’ve published some explаiners detailing what some of these system procеsѕes (WindowServer and kernel_task) do on your Mac. In this post, we’ll talk about mDNSResponder.

What Is mDNSResponder?

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.

Yes, the mDNSResponder service might seem unfamiliar, but you most likely use it daily without realizing it. If you’ve ever connected your Mac to an AirPrint-enabled printer on your local network, mDNSReponder made it happen. The process also facilitates the discovery of AirPlay-compatible devices (e.g., Apple TV) on your Mac.

mDNSResponder utilizes the Bonjour networking protocol to automatically identify devices on network-connected Apple devices.

“Bonjour” describes the networking technology upon which mDNSResponder is built. The Bonjour protocol broadcasts the availability of your Mac on a local network. It also allows your device to communicate reliably and exchange data using IP addresses.

When connected to a wired or wireless network, Bonjour constantly scans the network for other Bonjour-compatible devices. Note that Bonjour runs as mDNSResponder on Mac. Although both terms are often used interchangeably, what you’ll find when you launch the Activity Monitor is “mDNSResponder.”

Apps and services (e.g., iTunes) on non-Apple devices can also communicate and exchange data with your Mac using the Bonjour protocol. Learn more about how the Bonjour service works in Windows 10.

Is mDNSResponder Safe?

mDNSResponder is an essential element that powers the “Bonjour protocol” on Apple devices. It is a legitimate service designed by Apple, so you have nothing to worry about. The process runs in the background and periodically searches for Bonjour-equipped devices on your local network.

Despite being a safe and unproblematic system process, we’ve come across some Mac users who report that mDNSResponder consumes up to 100% CPU usage and reduces Wi-Fi speed. 

Here, we cover some troubleshooting fixes that can help restore mDNSResponder to normalcy on your Mac.

Fix mDNSResponder Issues

If there’s a problem with mDNSResponder, you may experience difficulties using file-sharing services, media-sharing apps, and printer sharing services like AirPrint. The following fixes can eliminate glitches affecting mDNSResponder’s operation on your Mac.

1. Force Quit mDNSResponder

Force-quitting mDNSResponder will indeed terminate the service, but only briefly. macOS will restart mDNSResponder immediately because it is a vital system process. However, the operation refreshes mDNSResponder and hopefully fixes issues causing the process to malfunction.

1. Launch the Activity Monitor, double-click mDNSResponder, and select Quit.

1. Select Force Quit.

Head to the CPU and Network section of the Activity Monitor and check if force-quitting mDNSReponder stabilized the service. If nothing changes, restart your Mac or boot into Safe Mode.

2. Restart Your Mac

Close all active applications, click the Apple logo on the menu bar, and select Restart. If mDNSResponder continues to act abnormally, try booting your Mac into Safe Mode.

Power off your Mac and wait for it to shut down completely. Afterward, press the power button and hold the Shift key immediately. Release the Shift key when the login window appears on the screen.

If your Mac uses the M1 Silicon chip, shut it down and wait for about 10 – 20 seconds. Then, press and hold the power button until the startup options window shows up on the screen. Select your preferred startup disk, hold the Shift key, click Continue in Safe Mode, and release the Shift key when the login screen comes on the screen. 

Enter your password, restart your Mac normally (Apple logo > Restart), and check if that reduces mDNSResponder CPU consumption and network usage.

3. Disable Firewall

Third-party firewalls can interfere with devices communicating on your local network. If you use one, turn it off and check if that resolves the problem. You should also ensure that the built-in macOS firewall isn’t blocking incoming connections.

1. Go to System Preferences > Security & Privacy > Firewall.
2. Click the lock icon at the bottom-left corner, enter your Mac’s password (or use Touch ID), and click Firewall Options.

1. Uncheck Block all incoming connections and select OK.

4. Disable and Re-Enable mDNSResponder

In the rare instance that mDNSResponder uses system resources heavily, disabling and re-enabling the service might resolve the problem.

Note: You’ll need to temporarily disable System Integrity Protection (SIP) before you can re-enable mDNSResponder. SIP is a protection protocol that prevents the execution of unauthorized code on macOS.

1. Go to Finder > Applications > Utilities and launch Terminal.

1. Paste the command below in the Terminal console and press Enter.

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.mDNSresponder.plist

1. Enter your Mac’s password and press Enter to continue.

Unlike Windows, many macOS apps and services require mDNSResponder to function correctly. So, we don’t advise keeping the mDNSResponder disabled for too long. Wait for a minute and proceed to the next step to re-enable the service.

1. Paste the command below in the console and press Enter.

sudo launchctl load -w/System/Library/LaunchDaemons/com.apple.mDNSresponder.plist

1. Enter your Mac’s password and press Enter.

mDNSResponder Demystified

To summarize, mDNSResponder is a safe process that helps your Mac connect and communicate with other devices. If the mDNSResponder acts abnormally, at least one of the troubleshooting fixes above should normalize its activities.

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