/etc/hosts best practices?
I have renamed my droplet from the default centos-s-2vcpu-blah to my FQDN, and I see that the PTR record was auto-created accordingly.
I see that my bash prompt is still:
So I look in /etc/hosts and I find this (excluding commented lines and those for IPv6, and where I have changed my FQDN to example.com):
127.0.0.1 centos-s-2vcpu-blah centos-s-2vcpu-blah 127.0.0.1 localhost.localdomain localhost 127.0.0.1 localhost4.localdomain4 localhost4 126.96.36.199 www.example.com example.com
Is it recommended to edit the first line to replace centos-s-2vcpu-blah above to my FQDN?
Should I leave alone the 2nd and 3rd lines?
If I do edit the first line to my FQDN, will my bash prompt change to show my FQDN?
Or do the 127.0.0.1 entries not really matter? And I can set it to whatever I like my bash prompt to say purely for the purpose of identifying to myself which Putty window is which, if I have a Putty window open to each of my many droplets.