无法连接到ppa.launchpad.net:http：[IP: 91.189.95.85 80]

Question

在我的Ubuntu20.04上运行sudo apt update会在所有的启动垫ppas上提供以下错误输出：

Hit:1 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:2 https://deb.nodesource.com/node_14.x focal InRelease                                             
Hit:3 https://packages.microsoft.com/ubuntu/20.04/prod focal InRelease                                 
Hit:4 https://packages.microsoft.com/repos/ms-teams stable InRelease                                   
Hit:5 https://deb.torproject.org/torproject.org focal InRelease                                        
Hit:6 http://archive.ubuntu.com/ubuntu focal InRelease                                                 
Get:7 http://archive.ubuntu.com/ubuntu focal-security InRelease [114 kB]                               
Hit:8 https://esm.ubuntu.com/infra/ubuntu focal-infra-security InRelease                               
Get:9 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]                                
Hit:10 https://esm.ubuntu.com/infra/ubuntu focal-infra-updates InRelease                               
Get:11 http://archive.ubuntu.com/ubuntu focal-backports InRelease [108 kB]                             
Get:13 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]                             
Hit:12 https://packagecloud.io/AtomEditor/atom/any any InRelease                                       
Hit:14 http://security.ubuntu.com/ubuntu focal InRelease                                               
Get:15 http://security.ubuntu.com/ubuntu focal-backports InRelease [108 kB]
Get:16 http://security.ubuntu.com/ubuntu focal-updates InRelease [114 kB]           
Err:17 http://ppa.launchpad.net/apt-fast/stable/ubuntu focal InRelease                                 
  Could not connect to ppa.launchpad.net:80 (91.189.95.85), connection timed out
Err:18 http://ppa.launchpad.net/beineri/opt-qt-5.15.2-focal/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:19 http://ppa.launchpad.net/eivnaes/network-manager-sstp/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:20 http://ppa.launchpad.net/git-core/ppa/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:21 http://ppa.launchpad.net/libreoffice/ppa/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:22 http://ppa.launchpad.net/pypy/ppa/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:23 http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:24 http://ppa.launchpad.net/savoury1/blender/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:25 http://ppa.launchpad.net/savoury1/ffmpeg4/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:26 http://ppa.launchpad.net/savoury1/graphics/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:27 http://ppa.launchpad.net/savoury1/multimedia/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:28 http://ppa.launchpad.net/savoury1/utilities/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:29 http://ppa.launchpad.net/savoury1/vlc3/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:30 http://ppa.launchpad.net/stk/dev/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:31 http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:32 http://ppa.launchpad.net/uget-team/ppa/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:33 http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Err:34 http://ppa.launchpad.net/xtradeb/apps/ubuntu focal InRelease
  Unable to connect to ppa.launchpad.net:http:
Fetched 672 kB in 30s (22.1 kB/s)
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
W: Failed to fetch http://ppa.launchpad.net/apt-fast/stable/ubuntu/dists/focal/InRelease  Could not connect to ppa.launchpad.net:80 (91.189.95.85), connection timed out
W: Failed to fetch http://ppa.launchpad.net/beineri/opt-qt-5.15.2-focal/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/eivnaes/network-manager-sstp/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/git-core/ppa/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/libreoffice/ppa/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/pypy/ppa/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/savoury1/blender/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/savoury1/ffmpeg4/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/savoury1/graphics/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/savoury1/multimedia/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/savoury1/utilities/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/savoury1/vlc3/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/stk/dev/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/uget-team/ppa/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Failed to fetch http://ppa.launchpad.net/xtradeb/apps/ubuntu/dists/focal/InRelease  Unable to connect to ppa.launchpad.net:http:
W: Some index files failed to download. They have been ignored, or old ones used instead.

在运行sudo apt update?

时，其他人是否也有相同的错误？

更新2021-12-25：

使用vpn使我能够运行sudo apt update，而不会出现任何错误。

Answer 1

我也有同样的问题，但只有VPN连接(IP 163.XXX.XXX.XXX)。没有虚拟专用网(IP 77.XXX.XXX.XXX)就行了。可能是launchpad.net防火墙中的问题(或者流量筛选器之类的问题)。