I have a starnge problem here with my Ubuntu 10.04 LTS server. When I try to update the server I got messages Err and warning, here an eg: 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 (eg: 8.8.8.8 ) it works ! Can some one help me on that issue ?