theteju@Inspiron:~$ sudo apt-get update
Ign http://dl.google.com stable InRelease
Err http://ftp.usf.edu precise InRelease

Err http://ftp.usf.edu precise-updates InRelease

Err http://ftp.usf.edu precise-backports InRelease

Err http://ftp.usf.edu precise-security InRelease

Err http://ftp.usf.edu precise Release.gpg
  Unable to connect to ftp.usf.edu:http:
Err http://ftp.usf.edu precise-updates Release.gpg
  Unable to connect to ftp.usf.edu:http:
Err http://ftp.usf.edu precise-backports Release.gpg
  Unable to connect to ftp.usf.edu:http:
Err http://ftp.usf.edu precise-security Release.gpg
  Unable to connect to ftp.usf.edu:http:
Hit http://dl.google.com stable Release.gpg
Hit http://dl.google.com stable Release
Hit http://dl.google.com stable/main i386 Packages
Ign http://extras.ubuntu.com precise InRelease
Ign http://dl.google.com stable/main TranslationIndex
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://archive.canonical.com precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Hit http://extras.ubuntu.com precise Release.gpg
Hit http://archive.canonical.com precise Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://extras.ubuntu.com precise Release
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://archive.canonical.com precise Release
Ign http://dl.google.com stable/main Translation-en_US
Hit http://extras.ubuntu.com precise/main Sources
Ign http://dl.google.com stable/main Translation-en
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://archive.canonical.com precise/partner Sources
Hit http://packages.medibuntu.org precise InRelease
Hit http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://ppa.launchpad.net precise Release
Hit http://archive.canonical.com precise/partner i386 Packages
Ign http://archive.canonical.com precise/partner TranslationIndex
Hit http://ppa.launchpad.net precise Release
Hit http://packages.medibuntu.org precise/free i386 Packages
Hit http://ppa.launchpad.net precise Release
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Hit http://packages.medibuntu.org precise/non-free i386 Packages
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://packages.medibuntu.org precise/free TranslationIndex
Ign http://packages.medibuntu.org precise/non-free TranslationIndex
Ign http://extras.ubuntu.com precise/main Translation-en_US
Ign http://archive.canonical.com precise/partner Translation-en_US
Ign http://extras.ubuntu.com precise/main Translation-en
Ign http://archive.canonical.com precise/partner Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://packages.medibuntu.org precise/free Translation-en_US
Ign http://packages.medibuntu.org precise/free Translation-en
Ign http://packages.medibuntu.org precise/non-free Translation-en_US
Ign http://packages.medibuntu.org precise/non-free Translation-en
Reading package lists... Done
W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise/InRelease

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise-updates/InRelease

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise-backports/InRelease

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise-security/InRelease

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise/Release.gpg  Unable to connect to ftp.usf.edu:http:

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise-updates/Release.gpg  Unable to connect to ftp.usf.edu:http:

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise-backports/Release.gpg  Unable to connect to ftp.usf.edu:http:

W: Failed to fetch http://ftp.usf.edu/pub/ubuntu/dists/precise-security/Release.gpg  Unable to connect to ftp.usf.edu:http:

W: Some index files failed to download. They have been ignored, or old ones used instead.