Gem gotcha

If your local machine's hostname is set to your name, you will likely hit a trouble while installing gem:

"your-dns-needs-immediate-attention"

That's all I know. That message is oversay!

What to do is: set your hostname to a real top-level domain.
If it's a local machine, set it to "your-name.local"
Bold characters must be exactly typed!

# Linux

hostname -s your-name.local 

# Mac OSX

scutil --set HostName your-name.local