/etc/hosts

An Eccentric Anomaly: Ed Davies's Blog

Some lines which have been in my /etc/hosts file for a while:

# OpenDNS 'emergency' access to setup instructions
# (servers are 208.67.222.222 and 208.67.220.220).
208.69.38.205 opendns

# Google DNS
8.8.8.8 google-public-dns-a  # .google.com
8.8.4.4 google-public-dns-b  # .google.com

Alternatively, you could bookmark http://208.69.38.205/.

Mostly the /etc/hosts entries were there for when the DNS for the internet connection I was using until earlier this year messed up (as it did once in a while) but it's also nice to know of alternatives (without having to Google them!) if there's wider disruption.

I also have a short name mapping to the IPv4 address of the machine where my email and web site is hosted which also allows me to ssh into my shell account there for an alternative viewpoint of any mayhem.