[OS X] fix a problem with DNS

Configure DNS — a mandatory attribute of a network connection. In most ca ses it is done automatically, but sometimes you may need a manual installation, and how to do it, describe this material.

The DNS system, whose name stands for System Domain Names (“domain name System” — approx. ed.), is to simplify the Network operation. Its main purpose is the digital translation of IP addresses into understandable and the user’s familiar domain names. It is that how to configure DNS in a certain way helps to resolve connection problems (for example, in the case of iOS), the benefit of this is done in a few simple steps.

  • Launch System preferences using the Apple menu in the top left corner of the screen
  • Open the panel “Network” and click on the Advanced button
  • Go to the tab “DNS”.

In the resulting window you can manage the list for us servers. In the standard OS X style adding and deleting entries is done using the buttons “+” and ” – ” and to arrange servers in order of preference is as simple as “drag” lines with the mouse. Of course, in the beginning of the list servers are used in the first place, so faster and more reliable options should be placed there.

Depending on the reason you decided to manually configure DNS, you may need to clear the cache. In OS X El Capitan for this there is a convenient command “Terminal”, which looks like this.

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder; say the DNS cache is cleared

After confirmation, you will need to enter the administrator password (its presence is mandatory for such teams), and a voice message “DNS cache cleared” will inform you about the successful completion of the procedure. Of course, don’t forget to restart connection app.

I hope this simple advice will make the Mac even more enjoyable. Quick you networks!

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