How to edit the hosts file on the Mac

How to edit the hosts file on the Mac

How to edit the hosts file on the Mac
Whenever you access a URL on the Internet your Mac checks the address against a list of IP addresses stored in the hosts file. Normally your Mac doesnt find what its looking for in the hosts file and quickly moves on to resolving the web address via the DNS (Domain Name System) server.
With a little tinkering you can use the hosts file to make sure your Mac doesnt resolve certain URLs via the DNS server. This is can be useful for blocking sites you suspect may be malicious or for locally testing websites whilst remaining offline.
Editing your hosts file requires using Terminal, and incorrectly editing the hosts file can have significant effects on how your Mac connects to the internet. So make sure you have a good idea of why you need to edit the hosts file before following this guide.
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