apt-get update 不起作用 apt-secure(8) 存储库创建手册页

Question

root@bgworker2:~# apt update
Err:1 http://in.archive.ubuntu.com/ubuntu focal InRelease
  407  Proxy Authentication Required [IP: 103.111.180.34 8082]
Err:2 https://download.docker.com/linux/ubuntu focal InRelease
  Invalid response from proxy: HTTP/1.1 407 Proxy Authentication Required  Mime-  X-iboss-Error: ERR_CACHE_ACCESS_DENIED 0  Proxy-Authenticate: Basic realm="ibolive     [IP: 103.111.180.34 8082]
Err:3 http://in.archive.ubuntu.com/ubuntu focal-updates InRelease
  407  Proxy Authentication Required [IP: 103.111.180.34 8082]
Err:4 http://in.archive.ubuntu.com/ubuntu focal-backports InRelease
  407  Proxy Authentication Required [IP: 103.111.180.34 8082]
Err:5 http://in.archive.ubuntu.com/ubuntu focal-security InRelease
  407  Proxy Authentication Required [IP: 103.111.180.34 8082]
Reading package lists... Done
N: See apt-secure(8) manpage for repository creation and user configuration deta
N: Updating from such a repository can't be done securely, and is therefore disa
E: The repository 'http://in.archive.ubuntu.com/ubuntu focal InRelease' is no lo
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/focal/InRelease  40
N: See apt-secure(8) manpage for repository creation and user configuration deta
N: Updating from such a repository can't be done securely, and is therefore disa
E: The repository 'http://in.archive.ubuntu.com/ubuntu focal-updates InRelease'
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/focal-updates/InRel
E: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/focal-backports/InR

N: Updating from such a repository can't be done securely, and is therefore disa
N: See apt-secure(8) manpage for repository creation and user configuration deta

N: Updating from such a repository can't be done securely, and is therefore disa
N: See apt-secure(8) manpage for repository creation and user configuration deta
root@bgworker2:~#
a
root@bgworker2:~#

a
root@bgworker2:~#