Ubuntu服务器20.04无法更新

Question

我刚刚在一个旧的HP裸金属服务器上安装了UbuntuServer20.04LTS。我不得不在systemd下更新resolv.conf文件，但现在我可以ping archive.ubuntu.com了。我甚至可以查找它们并获得dns名称的解析。看来我肯定要出去了。

我不能做一个apt-获取更新，因为它总是回来，并说它无法连接到网络。有人知道会发生什么事吗？

防火墙也不在我的两台计算机上。我有一个桌面pc运行相同的Ubuntu服务器在virtualbox，是无法更新，除非它是在NAT网络模式下运行。当我以桥接网络模式运行它时，它无法更新。

# apt-get update
Err:1 http://archive.ubuntu.com/ubuntu focal InRelease
  Could not connect to archive.ubuntu.com:80 (91.189.88.152), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.88.142), connection timed out
Err:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease
  Unable to connect to archive.ubuntu.com:http:
Err:3 http://archive.ubuntu.com/ubuntu focal-backports InRelease
  Unable to connect to archive.ubuntu.com:http:
Err:4 http://archive.ubuntu.com/ubuntu focal-security InRelease
  Unable to connect to archive.ubuntu.com:http:
Reading package lists... Done
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease  Could not connect to archive.ubuntu.com:80 (91.189.88.152), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.88.142), connection timed out
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease  Unable to connect to archive.ubuntu.com:http:
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease  Unable to connect to archive.ubuntu.com:http:
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-security/InRelease  Unable to connect to archive.ubuntu.com:http:
W: Some index files failed to download. They have been ignored, or old ones used instead.

~$ nslookup archive.ubuntu.com
Server:         127.0.0.53
Address:        127.0.0.53#53

Non-authoritative answer:
Name:   archive.ubuntu.com
Address: 91.189.88.152
Name:   archive.ubuntu.com
Address: 91.189.88.142
Name:   archive.ubuntu.com
Address: 2001:67c:1360:8001::24
Name:   archive.ubuntu.com
Address: 2001:67c:1360:8001::23

~$ ping archive.ubuntu.com
PING archive.ubuntu.com (91.189.88.142) 56(84) bytes of data.
64 bytes from aerodent.canonical.com (91.189.88.142): icmp_seq=1 ttl=54 time=131 ms
64 bytes from aerodent.canonical.com (91.189.88.142): icmp_seq=2 ttl=54 time=131 ms
64 bytes from aerodent.canonical.com (91.189.88.142): icmp_seq=3 ttl=54 time=131 ms
64 bytes from aerodent.canonical.com (91.189.88.142): icmp_seq=4 ttl=54 time=131 ms
64 bytes from aerodent.canonical.com (91.189.88.142): icmp_seq=5 ttl=54 time=131 ms
64 bytes from aerodent.canonical.com (91.189.88.142): icmp_seq=6 ttl=54 time=131 ms

Answer 1

问题在于我们的网络。如果windows计算机是新安装的，那么它有与Ubuntu系统相同的问题。它可以平，并解析域名，但没有http活动。我不知道这些设置是什么，但是当windows系统被添加到我们网络中的Active Directory域中时，如果它没有连接，它就可以到达internet。防火墙或本地windows机器上没有代理，所以我不确定是什么阻止了它。我还在努力找出是什么设置导致了这一切。防火墙是为这个系统的IP开放的，所以它是Windows AD世界中的东西，是由Windows服务管理的网络服务(如DHCP和DNS )。