I have a strange problem here with my Ubuntu 10.04 LTS server. When I try to update the server I got error and warning messages. Here's an example:
sudo apt-get update
Err http://fr.archive.ubuntu.com lucid Release.gpg
W: Impossible de récupérer http://security.ubuntu.com/ubuntu/dists/lucid-security/multiverse/i18n/Translation-fr.bz2 Erreur temporaire de résolution de «*security.ubuntu.com*»
But my server is connected, and if I try to ping some DNS server (e.g.: 8.8.8.8) it works.
Can someone help me on that issue?