While most internet server providers offer their own DNS servers, and most Macs will use DNS from DHCP or a wi-fi router, Mac users sometimes wish to change DNS settings themselves to custom servers, perhaps for better performance, or for troubleshooting purposes. DNS (Domain Name System) is a system which translates the domain names you enter in a browser to the IP addresses required to access those sites. Your ISP will assign you DNS servers whenever you. In this guide I'll show you how to set custom DNS servers on your Apple MAC which will increase security, enhance privacy and may thwart Geo-blocking. Best powered usb hub for mac.

Do you ever wonder how you can click a link on a webpage and quickly zip to another page on a server halfway around the world? Or send an email message to aunt Alice or uncle Bob, using just their simple email addresses? All this depends on DNS, or the Domain Name System.

This is what lets your computer find macworld.com, keeping track of the fact that this domain name corresponds to an IP address of 70.42.185.230, and that numerical address is hosting Macworld’s webpages. When you click on a link, your browser sends a request to a Web server to load a page, but that request passes through a DNS server, which stores this information in huge databases containing every single domain recorded listed together with its numerical address. You can find the numerical address for a website, if you want. In your /Applications/Utilities folder, there’s a tool called Network Utility. Click the Lookup tab, enter a domain name, then click Lookup. You might even want to do this if you’re having trouble accessing a website and need to do so in a hurry. Sometimes DNS servers have glitches, but you can always access a website by using its numerical IP address.

If you copy the numerical address and paste it in your browser’s address field, you can still visit that site, assuming the site itself isn’t down. You can use OS X’s Network Utility to find the numerical equivalent of a domain name from the Lookup tab. As you can imagine, some DNS servers respond more quickly than others.

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