curl -v -4
http://security.ubuntu.com/ubuntu/pool/main/t/tzdata/tzdata_2025b-0ubuntu0.24.04_all.deb
* Host security.ubuntu.com:80 was resolved.
* IPv6: (none)
* IPv4: 185.125.190.39, 91.189.91.82, 91.189.91.83, 185.125.190.83, 185.125.190.81, 185.125.190.82, 185.125.190.36, 91.189.91.81
* Trying 185.125.190.39:80...
* connect to 185.125.190.39 port 80 from 192.168.3.195 port 43730 failed: 連線被拒絕
* Trying 91.189.91.82:80...
* connect to 91.189.91.82 port 80 from 192.168.3.195 port 45950 failed: 連線被拒絕
* Trying 91.189.91.83:80...
* connect to 91.189.91.83 port 80 from 192.168.3.195 port 34536 failed: 連線被拒絕
* Trying 185.125.190.83:80...
* connect to 185.125.190.83 port 80 from 192.168.3.195 port 37074 failed: 連線被拒絕
* Trying 185.125.190.81:80...
* connect to 185.125.190.81 port 80 from 192.168.3.195 port 42760 failed: 連線被拒絕
* Trying 185.125.190.82:80...
* connect to 185.125.190.82 port 80 from 192.168.3.195 port 45366 failed: 連線被拒絕
* Trying 185.125.190.36:80...
* connect to 185.125.190.36 port 80 from 192.168.3.195 port 32868 failed: 連線被拒絕
* Trying 91.189.91.81:80...
* connect to 91.189.91.81 port 80 from 192.168.3.195 port 42842 failed: 連線被拒絕
* Failed to connect to security.ubuntu.com port 80 after 2117 ms: Couldn't connect to server
* Closing connection
curl: (7) Failed to connect to security.ubuntu.com port 80 after 2117 ms: Couldn't connect to server