Edit Hosts File

Windows

• Start Menu --> Notepad --> Right-click Run as Administrator
• Open file %systemroot%\system32\drivers\etc\hosts

OS X

sudo nano /private/etc/hosts

Linux

nano /etc/hosts

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Flush DNS

If you are editing your host file to test a website before changing your DNS you probably want to flush the IP of your old site from your DNS cache after adding the new test entry.

Windows

ipconfig /flushdns

OS X

dscacheutil -flushcache

Ubuntu

sudo /etc/init.d/nscd restart

RHEL & Fedora

service nscd reload

Debian

service nscd restart

More Details:

• How-to Geek's Edit Your Hosts File
• CyberCiti's Flush DNS Cache