In Mac OS X, how do I check what DNS server I'm currently using (preferably a command line solution)? System Preferences Network shows 192.168.1.1, which is my router's address and not the real DNS server. Apr 19, 2017 5. Choose the “DNS” tab at the top of the screen to edit, add, or remove DNS. Add a new DNS server: click on the + plus button. Edit an existing DNS server: click twice on the DNS IP address you wish to change. Remove a DNS server: select a DNS server IP address and then click either the - minus button or hit the delete key.
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This short article will walk you through resetting or flushing DNS settings on your Mac running Mojave version. It is useful and can be effective solutions to Internet connection problems, including slow browsing or intermittent Internet connection on your Mac. Read on this post to know more.
What is DNS? How does it work?
Those who don’t know, DNS stands for Domain Name System, a database or domain names. Each of these domain names will read a unique IP (Internet Protocol) addresses. DNS usually serves as a phone book of the Internet in terms of the layman. The main work of DNS is translating readable information such as website, or other Internet resources into the real addressing protocols. Computers will use these protocols (IP) addresses to find information on the web. For instance, when entering a URL in the web browser, the ISP will show the domain name, find its compatible IP address and direct the Internet connection to the correct website.
Best DNS For Your Mac
In Mac devices, OpenDNS is always the recommendation. Here are examples of OpenDNS: 208.67.222.222 and 208.67.220.220. But, if the Internet is not loading well with OpenDNS, Google’s Public DNS can be a good alternative. Public DNS is for IPv4 access, which is 8.8.8.8 and 8.8.4.4.
For IPv6 access, they are 2001:4860:4860::8888 and 2001:4860:4860::8844. You can set these addresses as the primary or secondary DNS server.
Although DNS is not directly connected to the Internet speed, it’s still an important factor that affects the loading speed of a web page on your computer. Below are the fastest free and public DNS servers to date:
- Comodo Secure DNS
- Norton ConnectSafe
- GreenTeamDNS
- SafeDNS
Flush or reset DNS server settings on Mac
You can easily change the DNS server settings on your Mac whenever the Internet issues occur. If the problem is related to errant DNS caches, flushing DNS server settings is an ideal solution. When the problems are tied to corrupt DNS, you should reset DNS server settings. Follow these steps below to flush DNS on your Mac running MacOS Mojave version.
Flush Cached DNS on MacOS Mojave
Slow internet browsing problem is associated with a stale DNS cache. DNS cache is a temporary database that could help to speed up DNS lookups through storing records of all network requests. Instead of memorizing IP addresses of your commonly visited website, your computer will tap into a cached table of DNS lookups to find out which web resource to load. Cache serves for good purposes, but, sometimes, it can trigger some problems in case it gets corrupt over time. A corrupted DNS will cause intermittent issues with loading websites. To clear it out, flushing or resetting DNS cache or settings on your computer is a recommended solution. This will clear or delete invalid items from your DNS cache. You should not worry since the process does not affect the browsing history, web data, your saved passwords or other temporary Internet files saved as cached files.
Here is how to flush DNS cache on Mac running macOS Mojave version:
- Open Terminal app on your Mac.
- In the Terminal interface, copy and paste this command into it:
- Hit the Enter key.
- Enter the password of your Mac and press Enter again to continue.
- Next, close Terminal with they key shortcut: Command + Q.
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Your DNS cache is already cleared or flushed.
When to flush or reset DNS on your Mac?
It’s necessary to clear DNS cache since the name servers might not fix the correct IP when your DNS is cached. As a result, you will be routed to a cached website or fail to set up a connection to that website.
Resetting DNS server settings is a good solution to get rid of connectivity issues, DNS spoofing when a website has moved servers.
Additionally, flushing DNS cache also stops DNS hijacking, fix page-loading problems, prevent interruptions from recent changes, protect your computer from malware, and enforce network settings change.
You should also clear/flush DNS before moving on to Google DNS or Open DNS servers as the main DNS for your computer.
Another simpler way to reset or flush DNS on your Mac is to use third-party software such as CleanMyMac X, CCleaner Professional, Intego Mac Washing Machine X9, Macbooster 7, and AppCleaner. You can also consider any of these alternative tools if you feel Terminal commands are difficult to use. Simply download any of these tools on your Mac and install it when it’s necessary. However, make sure to read the requirements to verify that the software works well with your Mac and supports MacOS Mojave version. To take advantage of some clues on the tool, you should read prior reviews.
How to test DNS server?
Once you configure DNS server settings on your Mac, you can then start using Network Utility. Here is what you should do:
- Launch the Network Utility app on your Mac. You can find it in System/Library/CoreServices/Applications
- From there, click on Lookup and then enter an Internet address to look up.
- Enter a domain or a numerical IP address for a website that you know.
- Finally, click on the Lookup button to confirm DNS search.
If you want to know which DNS server that is being used on your Mac, and more advanced DNS server settings configuration, you can contact your Internet service provider (ISP) to know more information. To get rid of major Internet problems on your Mac tied to DNS server settings, you can also ask for help from the Apple-Mac Support team.
With the method above, we hope you can fix the problem with your Mac running Mojave version. If this post is useful, let’s know in the comment below and share this post to other readers. Thank you so much!
By Adela D. Louie, Last updated: December 18, 2019
Ever wonder what DNS servers on your Mac are? Would you want to know on when or how are this DNS servers work? Well, in this article, we are going to know more about the DNS server on your Mac and on how you can find them. So if you are one of those people who are actually curious about it, then this is for you.
Part 1: What is A DNS Server?
If a certain device such as your Mac does not have a DNS server, then you will not be able to access the internet on your device. This is because a DNS server is one of the most crucial parts of the DNS infrastructure. DNS stands for Domain Name System.
This is where you will be able to find the IP addresses and as well as the hostnames and the data that is used for you to fix any problems that the user might encounter on a certain website, a device or some other network system that is using an IP address. Truly, DNS is very handy.
Part 2: When Do We Use DNS Servers?
Once that a user types in a certain host or website or a URL on the address bar on one of their browsers, the DNS resolver will then immediately contact the DNS server for it to be able to find the IP address that is somewhat connected to the website that you are trying to access. And, once that the DNS server is not able to locate any information that it needs, then it will move along to the DNS server in the DNS hierarchy until such time that it was able to locate the data that it needs.
Part 3: How to Find DNS Server on Mac
Now, for you to be able to check on the DNS server that you have on your Mac, here are the steps that you should follow.
- Go ahead and launch System Preferences. You can see this from the Dock of your Mac or you can also go to the Apple menu and then choose “System Preferences”.
- And then, once that the System Preferences appears on your screen, go ahead and choose the “Network” icon. Then the network configuration will be shown on your screen. This will show you the status of the active ports.
- Then, in the left-hand area, go ahead and select the network that you would want to see.
- After that, go ahead and click on the “Advanced” button and as well as the DNS tab.
NOTE: If you were able to enter the setting manually, then the MIT DNS servers will be listed on your screen in black font. If you have this, you can go ahead and click on the minus (-) sign for you to remove it. However, once that the DNS server appears grey on your screen, then that means that they were assigned automatically. And once that you have left the MIT campus, then the DNS settings will be updated on your local network provider.
That is how easy to find the DNS server on your Mac if you are wondering about where you can check on it.
Part 4: How to Flush DNS Cache on Mac – FoneDog PowerMyMac
In this part, we are going to show you the easiest and quickest way for you to be able to clear out the DNS cache on your Mac. All you need to have is the FoneDog PowerMyMac and rest assured that you will be able to do this task as quick and easy as possible.
The Flash DNS feature of the FoneDog PowerMyMac will be able to help you in solving any network problems that you are having on your Mac. There are actually three possible situations that you might encounter and that you will be needing to flash your DNS cache from your Mac.
- First one is that if you are actually having the inability to connect to some of the websites on your Mac.
- Another thing is that if you are experiencing that your network is slowing down randomly
- And if it used in any of the related issues.
The good thing about the FoneDog PowerMyMac is that, aside from the fact that you will be able to fix the problem with regards to your DNS server, you will also be able to make your Mac as good as new. Meaning, if you are going to have the FoneDog PowerMyMac, you will be able to do a lot of things with it. It will all depend on what you need. Here are some of the best features of the FoneDog PowerMyMac program.
- It can become a Mac Cleaner that will allow you to free up more of your storage space and make the performance of your Mac better.
- It can become a Duplicate Finder, which means that it can help you locate and remove all those duplicate files that you have on your Mac.
- It can become an App uninstaller as it can do the job better.
- You can also use the PowerMyMac for you to be able to secure the privacy of the files that you have on your Mac because you can set up a password so that no one will be able to access it.
- It can become a performance monitory wherein you will be able to use it for you to check up on the system status of your Mac.
- It can be a file unarchive, and a lot more.
With all the said features, there are still a lot more than the FoneDog PowerMyMac can do and you can find it all out once that you have the program installed on your Mac. Because of this, the FoneDog PowerMyMac is considered to be as an all-in-one Mac application and so far the best one ever.
Now, if you would want to start flushing your DNS cache from your Mac, all you have to do is to follow the steps below.
Step 1: Download and Install
First is that you will be needing to download the PowerMyMac from our official website. And once that you are done, you can go ahead and install it on your Mac.
![Download Download](/uploads/1/2/6/6/126601798/217634326.jpg)
Step 2: Open the PowerMyMac
Once that you are done with the installation process of the program, go ahead and simply launch it on your Mac.
Step 3: Check on Your Mac Status
If you would want to check up on the status of your Mac, all you have to do is to click on the “Status” option at the top of your screen. And then the PowerMyMac will show you the status of your Mac such as CPU, Memory, and your Disk.
Step 4: Choose Toolkit
After checking up on the status of your Mac, go ahead and click on the “Toolkit” option from the top of your screen.
Step 5: Choose Maintenance
From the list under Toolkit, go ahead and click on the “Maintenance” option.
If necessary, please press the little 'Scan' button on the right side of 'View' to rescan your Mac.
If necessary, please press the little 'Scan' button on the right side of 'View' to rescan your Mac.
Step 6: Choose Flush DNS and Clean
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Then, under the Maintenance option, go ahead and choose “Flush DNS”. From here, you will be able to clean up the DNS cache on your Mac. All you have to do is to click on the “Clean” button and the process will then start.
So that is how easy and quick to flush your DNS cache from your Mac using the most powerful tool today – the FoneDog PowerMyMac.
Part 5: Cleaning DNS Cache Manually on Mac
Before we go ahead and proceed with the cleaning of your DNS cache on your Mac, we have to warn you that doing this will interrupt any active web. That is why it is better for you to close any browsers first before doing this.
The methods that we are going to show you will depend on what type of Mac you are using. So, just go through the methods and look for the one that has the type of the Mac you are using.
Method #1: Flushing DNS Cache on macOS High Sierra
- Go ahead and launch Finder on your Mac.
- And then, choose Applications, then click on Utilities and then Terminal.
- After that, go ahead and enter these commands: sudo killall -HUP mDNSRespoder; sleep 2; echo macOS DNS Cache Reset | say
- After entering the command, go ahead and press on the Return button and then enter your password. And once again, press the Return button.
- Then, you will be able to see a message on your screen that says “macOS DNS cache reset”.
- Then once you are done, go ahead and exit Terminal.
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Method #2: Flushing DNS Cache on macOS Sierra
Mac Os Server Setup
This method is actually a little similar on flushing DNS on a High Sierra Mac. However, only the syntax for this one is different. Here is what you need to do.
- Go ahead and launch the Finder on your Mac.
- And then, go ahead and choose Applications and then choose Utilities and then choose Terminal.
- After that, go ahead and this command: sudo killall -HUP mDNSResponder;say DNS cache has been flushed
- After entering the command, go ahead and press the Return button and then key in your password. Once done with the password, press the Enter command again.
- And then lastly, listen to the audio alert. Once that you hear that alert, then that means that the DNS cache was successfully removed from your Mac.
NOTE: If the command that we have provided above does not work for you, then you can go ahead and use this alternative syntax.
sudo killall -HUP mDNSResponder;sudo killall mDNSResponderHelper;sudo dscacheutil -flushedcache;say Mac DNS cache has been cleared
Method #3: Flushing DNS Cache on Mac OS El Capitan and Yosemite
This method can be both applied on the El Capitan and Yosemite version of Mac. So here is how to do this.
- Go ahead and launch Finder on your Mac.
- After that, go ahead and click on the Applications and then choose Utilities and then click Terminal.
- Once that you are in Terminal, go ahead and enter the following command:
- sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say cache flushed
- And then, go ahead and press on the Return button and then key in your password. Once done, press on the Return button again.
- After that, wait for the alert tone which means that the process is successful.
- Then once that you are done, go ahead and exit Terminal.
TIP: If you are using the OS X Yosemite version 10.10, 10.1, 10.10.2 and the 10.10.3, then the process of these are a bit different. For you to be able to completely flush your DNS cache, you have to clear out the Multicast DNS and as well as the Unicast DNS.
- For you to clear the MDNS cache, all you have to do is to enter these command in the Terminal:
sudo discoveryutil mdnsflushcache
- And then, for you to be able to clear the UDNS cache, just do the same process above but enter this syntax on Terminal:
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sudo discoveryutil ednsfushcaches
- And then, for you to be able to clear both the MDNS and UDNS cache at once, go ahead and do the same steps but enter these command line:
sudo discoveryutil mdnsflushcache;sudo discoveryutiludnsflushcaches;say flushed
Part 6: Conclusion
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Now, you already know how you can find the DNS server on your Mac both manually and the easiest way. Now, if you are actually facing some problems about the websites that you are trying to visit, then it is a great idea that you clear out your DNS cache on your Mac. This way, your problem will be resolved quickly.
And in doing this, we highly recommend that you use the most powerful program for your Mac. And that is the FoneDog PowerMyMac. Every task will be as quick as possible.
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