There is something wrong with archive.ubuntu.com. But ru.archive.ubuntu.com works normally.
You can compare command outputs below:
``` http_proxy=http://192.168.3.222:8000 wget --server-response --no-cache -c http://archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz --2020-07-23 19:26:27-- http://archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz Connecting to 192.168.3.222:8000... connected. Proxy request sent, awaiting response... HTTP/1.1 416 Requested Range Not Satisfiable Date: Thu, 23 Jul 2020 16:26:27 GMT Server: Apache/2.4.29 (Ubuntu) Content-Type: text/html; charset=iso-8859-1 X-Cache: MISS from squid-deb-proxy X-Cache-Lookup: HIT from squid-deb-proxy:8000 Transfer-Encoding: chunked Via: 1.1 squid-deb-proxy (squid/3.4.8) Connection: keep-alive
The file is already fully retrieved; nothing to do.
http_proxy=http://192.168.3.222:8000 wget --server-response -c http://archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz --2020-07-23 19:30:08-- http://archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz Connecting to 192.168.3.222:8000... connected. Proxy request sent, awaiting response... HTTP/1.1 200 OK Date: Thu, 23 Jul 2020 16:23:16 GMT Server: Apache/2.4.29 (Ubuntu) Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT ETag: "1464d5-5aa8b3d596c80" Accept-Ranges: bytes Content-Length: 1336533 Content-Type: application/x-gzip Age: 412 X-Cache: HIT from squid-deb-proxy X-Cache-Lookup: HIT from squid-deb-proxy:8000 Via: 1.1 squid-deb-proxy (squid/3.4.8) Connection: keep-alive
---
http_proxy=http://192.168.3.222:8000 wget --server-response --no-cache -c http://ru.archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz --2020-07-23 19:27:11-- http://ru.archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz Connecting to 192.168.3.222:8000... connected. Proxy request sent, awaiting response... HTTP/1.1 416 Requested Range Not Satisfiable Server: nginx/1.14.2 Date: Thu, 23 Jul 2020 16:27:11 GMT Content-Type: text/html; charset=utf-8 Content-Length: 213 Content-Range: bytes */1336533 X-Cache: MISS from squid-deb-proxy X-Cache-Lookup: HIT from squid-deb-proxy:8000 Via: 1.1 squid-deb-proxy (squid/3.4.8) Connection: keep-alive
http_proxy=http://192.168.3.222:8000 wget --server-response -c http://ru.archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz --2020-07-23 19:29:49-- http://ru.archive.ubuntu.com/ubuntu/dists/focal-updates/main/dist-upgrader-all/current/focal.tar.gz Connecting to 192.168.3.222:8000... connected. Proxy request sent, awaiting response... HTTP/1.1 200 OK Server: nginx/1.14.2 Date: Thu, 23 Jul 2020 15:15:37 GMT Content-Type: application/octet-stream Content-Length: 1336533 Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT ETag: "5f1016a2-1464d5" Accept-Ranges: bytes Age: 4452 X-Cache: HIT from squid-deb-proxy X-Cache-Lookup: HIT from squid-deb-proxy:8000 Via: 1.1 squid-deb-proxy (squid/3.4.8) Connection: keep-alive
```
There is something wrong with archive.ubuntu.com. But ru.archive. ubuntu. com works normally.
You can compare command outputs below:
``` 192.168. 3.222:8000 wget --server-response --no-cache -c http:// archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz 3.222:8000. .. connected. proxy:8000 Encoding: chunked
http_proxy=http://
--2020-07-23 19:26:27-- http://
Connecting to 192.168.
Proxy request sent, awaiting response...
HTTP/1.1 416 Requested Range Not Satisfiable
Date: Thu, 23 Jul 2020 16:26:27 GMT
Server: Apache/2.4.29 (Ubuntu)
Content-Type: text/html; charset=iso-8859-1
X-Cache: MISS from squid-deb-proxy
X-Cache-Lookup: HIT from squid-deb-
Transfer-
Via: 1.1 squid-deb-proxy (squid/3.4.8)
Connection: keep-alive
The file is already fully retrieved; nothing to do.
http_proxy=http:// 192.168. 3.222:8000 wget --server-response -c http:// archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz 3.222:8000. .. connected. 5aa8b3d596c80" proxy:8000
--2020-07-23 19:30:08-- http://
Connecting to 192.168.
Proxy request sent, awaiting response...
HTTP/1.1 200 OK
Date: Thu, 23 Jul 2020 16:23:16 GMT
Server: Apache/2.4.29 (Ubuntu)
Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT
ETag: "1464d5-
Accept-Ranges: bytes
Content-Length: 1336533
Content-Type: application/x-gzip
Age: 412
X-Cache: HIT from squid-deb-proxy
X-Cache-Lookup: HIT from squid-deb-
Via: 1.1 squid-deb-proxy (squid/3.4.8)
Connection: keep-alive
The file is already fully retrieved; nothing to do.
---
http_proxy=http:// 192.168. 3.222:8000 wget --server-response --no-cache -c http:// ru.archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz ru.archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz 3.222:8000. .. connected. proxy:8000
--2020-07-23 19:27:11-- http://
Connecting to 192.168.
Proxy request sent, awaiting response...
HTTP/1.1 416 Requested Range Not Satisfiable
Server: nginx/1.14.2
Date: Thu, 23 Jul 2020 16:27:11 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 213
Content-Range: bytes */1336533
X-Cache: MISS from squid-deb-proxy
X-Cache-Lookup: HIT from squid-deb-
Via: 1.1 squid-deb-proxy (squid/3.4.8)
Connection: keep-alive
The file is already fully retrieved; nothing to do.
http_proxy=http:// 192.168. 3.222:8000 wget --server-response -c http:// ru.archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz ru.archive. ubuntu. com/ubuntu/ dists/focal- updates/ main/dist- upgrader- all/current/ focal.tar. gz 3.222:8000. .. connected. octet-stream proxy:8000
--2020-07-23 19:29:49-- http://
Connecting to 192.168.
Proxy request sent, awaiting response...
HTTP/1.1 200 OK
Server: nginx/1.14.2
Date: Thu, 23 Jul 2020 15:15:37 GMT
Content-Type: application/
Content-Length: 1336533
Last-Modified: Thu, 16 Jul 2020 08:58:10 GMT
ETag: "5f1016a2-1464d5"
Accept-Ranges: bytes
Age: 4452
X-Cache: HIT from squid-deb-proxy
X-Cache-Lookup: HIT from squid-deb-
Via: 1.1 squid-deb-proxy (squid/3.4.8)
Connection: keep-alive
The file is already fully retrieved; nothing to do.
```