apt-get failing

[Verde Denim]

For the past two days, I've been ssh-ing onto my Ubuntu 12.04 LTS server
and attempting to update the package list, but have been receiving the
following -

root at Theosophidae:# apt-get update
Err http://security.ubuntu.com precise-security InRelease
Err http://us.archive.ubuntu.com precise InRelease
Err http://us.archive.ubuntu.com precise-updates InRelease
Err http://us.archive.ubuntu.com precise-backports InRelease
Err http://security.ubuntu.com precise-security Release.gpg
  Temporary failure resolving 'security.ubuntu.com'
Err http://us.archive.ubuntu.com precise Release.gpg
  Temporary failure resolving 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com precise-updates Release.gpg
  Temporary failure resolving 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com precise-backports Release.gpg
  Temporary failure resolving 'us.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise/InRelease 
W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease 
W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise-backports/InRelease 
W: Failed to fetch
http://security.ubuntu.com/ubuntu/dists/precise-security/InRelease 
W: Failed to fetch
http://security.ubuntu.com/ubuntu/dists/precise-security/Release.gpg 
Temporary failure resolving 'security.ubuntu.com'
W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg  Temporary
failure resolving 'us.archive.ubuntu.com'
W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise-updates/Release.gpg 
Temporary failure resolving 'us.archive.ubuntu.com'
W: Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/precise-backports/Release.gpg 
Temporary failure resolving 'us.archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old
ones used instead.

Have others been experiencing this? It started Friday evening (3/1) and
is still continuing.

-- 
Regards

Jack
Boston Tea Party, Coercive Acts, Powder Alarm, Revolution
Lessons not learned are bound to be repeated.