问题
I'm trying to learn about hosts & apache a little bit. One of the things I'm trying to do myself is to add a line to /etc/hosts so that way I can access localhost in the browser
Currently, hosts contains this:
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
Questions: 1. What does the ::1, and fe80::1%lo8 mean? 2. Are they essential to the accessing of 127.0.0.1 via typing 'localhost' in your browser? 3. What would I do to create an additional link to 127.0.0.1 typing something else in the browser, like "local", so that way both "localhost" and "local" work?
回答1:
Kristian, I'm not sure what those symbols mean (::1 for example), but creating host file entries is as easy as typing an IP address and then the list of domains to match.
For example:
127.0.0.1 local localhost
will match both 'local' and 'localhost' to 127.0.0.1. You could have also done the following:
127.0.0.1 local
127.0.0.1 localhost
One entry per line - use a '#' at the beginning of each line if you want to comment that line out.
回答2:
The ::1 and fe80 relate to IPv6 references to localhost.
To additional aliases like local, just chain them along in a space-separated list:
127.0.0.1 localhost local mylocalmachine someothername
来源：https://stackoverflow.com/questions/5613581/adding-a-host-to-hosts-file