What are the drawback if I use 127.0.0.1 instead of 127.0.1.1 in my host file?

Question

Ubuntu default host file is something like

127.0.0.1   localhost
127.0.1.1   myhostname

Will there be any drawback if I change to:

127.0.0.1   localhost myhostname

Answer 1

127.0.0.0/8 (127.*.*.*) will all point to your local machine, regardless which address you use. The only thing that matters is that the hostname provided in /etc/hostname resolves to an IP address, but you can use any IP address on your computer you like. For more details read this: 127.0.1.1 ? Ubuntu / Debian

However, next time you might want to Google a bit before posting your question.