I had multiple terminal windows open using SSH to access a webserver behind reverse proxies and was making changes to my hosts file to alternate between the webserver and public ip. While not paying attention I accidently executed sudo chmod 777 /private/etc/hosts instead of just opening it with sudo nano /private/etc/hosts now I'm not sure what permissions I should restore it to.
% ls -ld /private/etc/hosts
-rw-r--r-- 1 root wheel 473 29 Jan 18:46 /private/etc/hosts