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In addition to showing the MAC address, the tool also shows the SNMP availability, IP address, DNS name, port number, community, system type, and system description. MAC Address Scan The MAC address scan tool scans a given range of IP's and displays the MAC addresses for various devices available in the given range.

Remember the good old days when your Windows name resolution was Wins based? Okay, maybe those days weren't so good. Okay, they were downright horrible, but that changed when Microsoft released Windows 2000 and migrated to the more standard TCP/IP protocol. This changed forced many NT administrators to update their networking knowledge and forced Microsoft to release of host of new tools to support the new communication system. Unfortunately, many network administrators failed to recognize the usefulness of these new tools and many tools fell through the cracks. Nslookup is one such tool. Released with Windows 2000 and later Windows versions, Nslookup is a command-line tool that lets you test and troubleshoot Domain Name System (DNS) resolution.

The job

Although DNS lets change the underlying IP address without changing the friendly name, there is always a chance the DNS server could have had difficulty in obtaining this update, or could just be running late. It's also possible that your local system is using a cached version of this resolution. When such a situation occurs, you need to verify that your DNS server is resolving things correctly. This is just what the nslookup tool can do.

The tool

Released with Windows 2000 and later versions, Nslookup is a command-line tool that lets you test and troubleshoot Domain Name System (DNS) resolution. To start nslookup, open a command prompt and enter nslookup, see Figure A. Nslookup will display the machine's default DNS server and IP address. You can now enter nslookup commands. Enter help at the nslookup prompt for a quick list of commands.

By default, nslookup uses whatever your default DNS server is to test your resolution, but you can choose a different DNS server to test your resolution. This allows you to verify if an error is on the server, if there is a widespread resolution error, or if the server is possibly down. Nslookup will also display the various types of DNS records, not just primary (A) records, or all records for a domain.

Putting nslookup to the test

Querying you local Active Directory domain is a great way to use nslookup. This will give the IP address of all of your domain controllers. You can also run this on a sub domain to see the domain controllers for that domain. You can also retrieve MX records from domains with nslookup. An MX record is the mail exchanger record. This is where your mail server will deliver its mail to that domain. If you are having mail delivery issues, you should run this test first. By looking at the MX records you retrieve from your DNS servers and comparing that to the MX records returned from other DNS servers, you can determine if your servers are delivering mail to the same IP addresses. With this knowledge you will know if your mail delivery issue is DNS related or not.

The Right Tool for the Job?

On many *Nix systems nslookup has been mostly replaced by DIG. Unfortunately, this tool is an exotic beast on Windows. While DIG is a wonderful tool, nslookup is plenty powerful for most of your DNS resolution errors. It provides a fairly rich feature set that gives you a (due to it's inclusion in Windows) quick and easy way to verify resolution. Due in large part to its inclusion in Windows nslookup is quite often the Right Tool for the Job.

Google’s Public DNS is a free Domain Name System (DNS). It is an alternative to your ISP’s default DNS settings which aren’t always the fastest option, and other public DNS services such as OpenDNS or the privacy focused 1.1.1.1 DNS.

Which of these options best optimize your internet speed? Is one DNS better than its competitors? And how can you tell if it is? Read on to find out how you find the fastest DNS and optimize your internet speed in the process.

What Is DNS?

Itool For Mac

The Domain Name System translates a human-readable website name to an IP address. When you enter the name of a website in your browser address bar, your browser sends that name to a DNS server. The DNS server helps route the request to the appropriate IP address of that website.

Each website has an IP address. But the IP address for each site is a long string of numbers and unless you are a mnemonist, you cannot remember the IP address for every site you want to and need to visit.

When your ISP configures your internet connection, it is set to use the ISP’s default DNS. The default ISP DNS settings aren’t automatically bad, but some are known to have connection and frequent name address resolution issues. Furthermore, you are free to use one of the free DNS alternatives.

You want a fast and stable DNS. For some, their DNS should provide extra security and privacy features, too. To find your fastest DNS option, try one of the following free DNS speed tests. Here’s how you change your DNS settings in Windows and how to change your DNS settings on Mac.

1. NameBench

NameBench is an open-source portable application (no installation, you can run it from a USB flash drive) that works on Windows, macOS, and Linux distributions. It runs a DNS benchmark test on your computer using your internet browser history or a standardized test data set. The NameBench DNS test then returns the fastest DNS settings for your location and current connection.

Head to the NameBench code repository and download the latest version of the tool for your operating system. Please note that NameBench ceased development in 2010, so the release dates are correct. Alternatively, use one of the following links.

Download: NameBench for Windows | macOS | Linux (All Free)

How to Use NameBench DNS Test

Before you run NameBench, close any applications using your internet connection. Closing programs using an active connection can distort your NameBench DNS test results.

Open and extract NameBench. The Nameservers you see are the DNS servers you use currently. Keep the default NameBench settings, then hit Start Benchmark. The NameBench DNS test takes 10-20 minutes, so grab a cup of tea and wait for the results.

After the NameBench DNS speed test completes, your browser launches to show your results. The box in the top left shows the fastest DNS server for your current connection. For example, I should switch my primary DNS server to the privacy-focused 1.1.1.1How Cloudflare DNS Helps Solve 4 Big DNS Privacy RisksHow Cloudflare DNS Helps Solve 4 Big DNS Privacy RisksCloudflare has released a free new security tool. Here's how Cloudflare DNS helps improves security, privacy, and even speed.Read More. You can also scroll down your results page to see DNS speed test comparison charts.

2. GRC Domain Name Speed Benchmark

The Gibson Research Corporation Domain Name Speed Benchmark tool provides a detailed analysis of the optimum DNS settings for your connection. Like NameBench, you can run DNS Benchmark from a USB flash drive, requiring no installation. There is a Windows application, but no support for macOS or Linux.

Download: DNS Benchmark for Windows (Free)

How to Use DNS Benchmark

Checking Dns Settings

One thing I like about DNS Benchmark is the constantly updating DNS list. As the DNS speed test progresses, the servers with the fastest response move to the top of the list.

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Download and open DNS Benchmark, then select the Nameservers tab. Let DNS Benchmark update the list, then select Run Benchmark. The first run through only takes a few minutes. At the end of the first DNS speed test run, however, DNS Benchmark announces that you should create a custom DNS benchmarking list for DNS testing results that accurately reflect your system, connection, and locale. That’s because the default DNS server list heavily favors US-based users.

Building the custom list takes “around 37 minutes.” But the result does provide a much clearer picture of the fastest DNS for your system.

3. DNS Jumper

Dns Mac Address

On first impressions, DNS Jumper appears to be a more basic DNS speed test tool. However, once you start using the DNS Jumper, you’ll notice that it has many similar features to NameBench and DNS Benchmark. For instance, DNS Jumper completes a fastest DNS test, and is portable application, too.

Regarding DNS speed, DNS Jumper has the option to scan for and select the “Fastest DNS.” Once the DNS speed test finishes you can select an option, then use the integrated “Apply DNS” button to use those settings. The DNS Jumper test list has some limitations and does favor US-based DNS providers.

Download: DNS Jumper for Windows (Free)

How to Use DNS Jumper

Download and open DNS Jumper.

Dns Tools Online

First, select your network adapter from the dropdown list. Unsure which network adapter to select? In your Start Menu search bar, input view network status and select the Best Match. Select Change adapter settings from the left column. One of the network adapters will have the name of your current connection underneath the adapter type. Wi-Fi connections will also display a reception bar. Note the name and select the corresponding hardware on the DNS Jumper dropdown list.

Once you have the correct hardware configuration, select Fastest DNS. A new window opens, listing the available DNS speed tests. Keep each selection checked, then hit Start DNS Test. The DNS Jumper test does not take long. When it completes, you can use DNS Jumper to update the DNS settings for your connection automatically.

How Do You Find the Fastest DNS?

Using one of the above DNS speed test tools will help you figure out the best DNS settings for your connection. NameBench and the GRC DNS Benchmark offer the most thorough tests and will give you the most accurate answer regarding DNS speed.

Want to switch between several DNS servers? Check out our guide on how to easily switch between multiple DNS serversHow to Easily Switch Between Multiple DNS Servers in WindowsHow to Easily Switch Between Multiple DNS Servers in WindowsChanging your DNS settings is helpful, but doing so in Windows is a bit clunky. Here's a tool that makes it a lot easier.Read More.

Explore more about: Bandwidth, DNS, Troubleshooting.

Change Dns In Mac

1. DNSBench works on linux with wine.

2. Unfortunately if you're beta-testing Catalina, NameBench will not work as it is a 32 bit application. Anyone have another option for the Mac?

   • When you say '32-bit application' are you referring to Catalina? Because Namebench runs on 64-bit systems.

     Wconnect tool for mac. How to Run Android Apps in Windows 10 Mobile. Wconnect tool; Android SDK ADB tool; After you download the above archives. Mac, Debian, iOS, Android, or a home router. On 2 April 2018. Subscribe to our mailing list. Enter your Email Address below and click Subscribe. Aug 10, 2015  Instead of running APKDeployment.exe, it's necessary to open a console window and run the wconnect.exe usb or wconnect.exe IP address commands (if the mobile device has been connected over Wi-Fi.

3. I agree with thios. Google knows too much about us already. Especially when they are reading our free gmail accounts. Why is gmail free? Same reason that Open DNS is free.

4. These tweaks just adjust the time to open the taskbar, force shutdown of programs, and turn off Aero. These features were intentionally added by Microsoft you dumb piece of shit. Jesus, comments like these really get me raged because you're probably 12 years old sitting there and is the future of our society.

   • Did you fall down and bump your head?
     DNS has absolutely NOTHING to do with taskbar times, forced shutdowns, or Aero..or Windows (all OS's use DNS or provide their own).

     From a BS in CS from an accredited uni., net. eng. III, CCNA, RHCE, Net+ certs. You need to stop passing along information on subjects you absolutely know nothing about.

5. Google knows too much already about our preferences via their search. No need to browse from their DNS-I prefer a slower internet, thanks.

6. The goal is not to have the biggest list of DNS but the high QoS list..

7. I prefer the much more thorough freeware tool
   DNSBench from grc. It has many more dns servers to test and it a great explanation/advise after running the test.

8. Ubuntu users can get it here: http://www.getdeb.net/software/namebench