$>sudo apt-get update
Err http://security.ubuntu.com dapper-security Release.gpg
  Connection failed
Err http://us.archive.ubuntu.com dapper Release.gpg
  Connection failed [IP: 146.137.96.7 80]
Err http://kubuntu.org dapper Release.gpg
  Connection failed
Ign http://security.ubuntu.com dapper-security Release
Err http://us.archive.ubuntu.com dapper-updates Release.gpg
  Connection failed [IP: 146.137.96.7 80]
Err http://kubuntu.org dapper Release.gpg
  Connection failed
Ign http://security.ubuntu.com dapper-security/main Packages
Ign http://us.archive.ubuntu.com dapper Release
Err http://kubuntu.org dapper Release.gpg
  Connection failed
Ign http://security.ubuntu.com dapper-security/restricted Packages
Ign http://us.archive.ubuntu.com dapper-updates Release
Ign http://kubuntu.org dapper Release
Ign http://security.ubuntu.com dapper-security/universe Packages
Ign http://us.archive.ubuntu.com dapper/main Packages
Ign http://kubuntu.org dapper Release
Ign http://us.archive.ubuntu.com dapper/restricted Packages
Ign http://security.ubuntu.com dapper-security/multiverse Packages
Ign http://kubuntu.org dapper Release
Ign http://us.archive.ubuntu.com dapper/universe Packages
Err http://security.ubuntu.com dapper-security/main Packages
  Connection failed
Ign http://kubuntu.org dapper/main Packages
Ign http://us.archive.ubuntu.com dapper/multiverse Packages
Err http://security.ubuntu.com dapper-security/restricted Packages
  Connection failed
Ign http://us.archive.ubuntu.com dapper-updates/main Packages
Ign http://kubuntu.org dapper/main Packages
Err http://security.ubuntu.com dapper-security/universe Packages
  Connection failed
Ign http://us.archive.ubuntu.com dapper-updates/restricted Packages
Ign http://kubuntu.org dapper/main Packages
Err http://security.ubuntu.com dapper-security/multiverse Packages
  Connection failed
Ign http://us.archive.ubuntu.com dapper-updates/universe Packages
Err http://kubuntu.org dapper/main Packages
  Connection failed
Ign http://us.archive.ubuntu.com dapper-updates/multiverse Packages
Err http://kubuntu.org dapper/main Packages
  Connection failed
Err http://us.archive.ubuntu.com dapper/main Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://kubuntu.org dapper/main Packages
  Connection failed
Err http://us.archive.ubuntu.com dapper/restricted Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://us.archive.ubuntu.com dapper/universe Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://us.archive.ubuntu.com dapper/multiverse Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://us.archive.ubuntu.com dapper-updates/main Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://us.archive.ubuntu.com dapper-updates/restricted Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://us.archive.ubuntu.com dapper-updates/universe Packages
  Connection failed [IP: 146.137.96.7 80]
Err http://us.archive.ubuntu.com dapper-updates/multiverse Packages
  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper/Release.gpg  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper-updates/Release.gpg  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://security.ubuntu.com/ubuntu/dists/dapper-security/Release.gpg  Connection failed
Failed to fetch http://kubuntu.org/packages/kde-latest/dists/dapper/Release.gpg  Connection failed
Failed to fetch http://kubuntu.org/packages/koffice-latest/dists/dapper/Release.gpg  Connection failed
Failed to fetch http://kubuntu.org/packages/amarok-latest/dists/dapper/Release.gpg  Connection failed
Failed to fetch http://security.ubuntu.com/ubuntu/dists/dapper-security/main/binary-i386/Packages.gz  Connection failed
Failed to fetch http://security.ubuntu.com/ubuntu/dists/dapper-security/restricted/binary-i386/Packages.gz  Connection failed
Failed to fetch http://security.ubuntu.com/ubuntu/dists/dapper-security/universe/binary-i386/Packages.gz  Connection failed
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper/main/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper/restricted/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://security.ubuntu.com/ubuntu/dists/dapper-security/multiverse/binary-i386/Packages.gz  Connection failed
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper/universe/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://kubuntu.org/packages/kde-latest/dists/dapper/main/binary-i386/Packages.gz  Connection failed
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper/multiverse/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper-updates/main/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://kubuntu.org/packages/koffice-latest/dists/dapper/main/binary-i386/Packages.gz  Connection failed
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper-updates/restricted/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://kubuntu.org/packages/amarok-latest/dists/dapper/main/binary-i386/Packages.gz  Connection failed
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper-updates/universe/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/dapper-updates/multiverse/binary-i386/Packages.gz  Connection failed [IP: 146.137.96.7 80]
Reading package lists... Done
E: Some index files failed to download, they have been ignored, or old ones used instead.