Ign:1 https://download.docker.com/linux/ubuntu xenial InRelease
Err:2 https://download.docker.com/linux/ubuntu xenial Release
Received HTTP code 407 from proxy after CONNECT
Ign:3 http://ppa.launchpad.net/gns3/ppa/ubuntu xenial InRelease
Ign:4 http://download.virtualbox.org/virtualbox/debian xenial InRelease
Ign:5 http://security.ubuntu.com/ubuntu xenial-security InRelease
Ign:6 http://ppa.launchpad.net/nm-l2tp/network-manager-l2tp/ubuntu xenial InRelease
Ign:7 http://archive.canonical.com/ubuntu xenial InRelease
Err:8 http://download.virtualbox.org/virtualbox/debian xenial Release
407 Proxy Authentication Required
Err:9 http://security.ubuntu.com/ubuntu xenial-security Release
407 Proxy Authentication Required
Err:10 http://ppa.launchpad.net/gns3/ppa/ubuntu xenial Release
407 Proxy Authentication Required
Err:11 http://archive.canonical.com/ubuntu xenial Release
407 Proxy Authentication Required
Err:12 http://ppa.launchpad.net/nm-l2tp/network-manager-l2tp/ubuntu xenial Release
407 Proxy Authentication Required
Ign:13 http://deb.torproject.org/torproject.org xenial InRelease
Err:14 http://deb.torproject.org/torproject.org xenial Release
407 Proxy Authentication Required
Ign:15 http://archive.ubuntu.com/ubuntu xenial InRelease
Ign:16 http://ir.archive.ubuntu.com/ubuntu xenial InRelease
Err:17 http://archive.ubuntu.com/ubuntu xenial Release
407 Proxy Authentication Required
Ign:18 http://ir.archive.ubuntu.com/ubuntu xenial-updates InRelease
Ign:19 http://ir.archive.ubuntu.com/ubuntu xenial-backports InRelease
Err:20 http://ir.archive.ubuntu.com/ubuntu xenial Release
407 Proxy Authentication Required
Err:21 http://ir.archive.ubuntu.com/ubuntu xenial-updates Release
407 Proxy Authentication Required
Err:22 http://ir.archive.ubuntu.com/ubuntu xenial-backports Release
407 Proxy Authentication Required
Reading package lists... Done
E: The repository 'https://download.docker.com/linux/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://download.virtualbox.org/virtualbox/debian xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://security.ubuntu.com/ubuntu xenial-security Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ppa.launchpad.net/gns3/ppa/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.canonical.com/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ppa.launchpad.net/nm-l2tp/network-manager-l2tp/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://deb.torproject.org/torproject.org xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://archive.ubuntu.com/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ir.archive.ubuntu.com/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ir.archive.ubuntu.com/ubuntu xenial-updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ir.archive.ubuntu.com/ubuntu xenial-backports Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.