Google offers its DNS resolution service, which lets you use their DNS servers instead of providing us with our internet provider. Other projects such as OpenDNS also offer an alternative to that effect, but which of these alternatives is best?

is what is helping us respond Namebench , a DNS server benchmark that evaluates the performance of those servers in our homes or workplaces, so that each time we DNS servers use faster and behave better.

Namebench is a small program in Python that evaluates response times and also makes use of data as our browsing history, tcpdump output and even some databases such as Alexa to offer their recommendations.

Linuxaria reveal, the project began as one of those projects that Google employees do in their time slot available for other initiatives (theoretically have 20% of their working time for these projects), and is a free application and we can use in Windows, Mac OS X or Linux.

Ubuntu installation simply install the required package (namebench) from the Ubuntu Software Center or from the console:

 sudo apt-get install namebench 

Whereupon

can run the command namebench , which will bring up a window to display the name servers to be evaluated, we can modify field adding another name server IPs to know.

Once done

just have to click on “Start Benchmark “, which after about 10 minutes the result will provide the most appropriate DNS server us, and also indicate the IPs of the servers primary, secondary and tertiary. With these data we can go to edit the file / etc / resolv.conf and there will have to enter the IP corresponding to the appropriate format, for example:

 nameserver 127.0.0.1nameserver 8.8.8.8nameserver 85.37.17.40nameserver 208.67.222.222 

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