Hi folks,

I've had this problem for a few weeks now, and just didn't bother to sit down and figure out what was wrong. When I run
Code:
sudo apt-get update
, I get the following errors at the end:
W: Failed to fetch http://linux.dropbox.com/ubuntu/dist...se/Release.gpg Something wicked happened resolving 'linux.dropbox.com:http' (-5 - No address associated with hostname)

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/...se/Release.gpg Something wicked happened resolving 'us.archive.ubuntu.com:http' (-5 - No address associated with hostname)

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/...es/Release.gpg Something wicked happened resolving 'us.archive.ubuntu.com:http' (-5 - No address associated with hostname)

W: Failed to fetch http://ppa.launchpad.net/ubun-tor/pp...source/Sources 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/ubun-tor/pp...amd64/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/ubun-tor/pp...-i386/Packages 404 Not Found

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/...ts/Release.gpg Something wicked happened resolving 'us.archive.ubuntu.com:http' (-5 - No address associated with hostname)

E: Some index files failed to download. They have been ignored, or old ones used instead.
I see this as two distinct problems:
1. Something wrong with PPA
2. A separate problem, of which the source is unclear. ie, the `something wicked' messages

I tried solving the PPA problems based on the solutions posted here. However, neither
Code:
/etc/apt/sources.list
nor any list in
Code:
/etc/apt/sources.list.d
had an entry with anything other than `main' at the end of the line.

I have had less success with problem 2 and would appreciate tips for solving both.

Thanks in advance