репозиторий человечности 18.04, не обновляющий/, не может использовать склонный - добираются (Невозможно подключиться к x.x.x.x:8080),

Я вошел в Ubuntu и работал

sudo apt-get update

затем

Err:1 https ://download.docker .com/linux/ubuntu bionic InRelease
  Could not connect to 10. 10.8.179:8080 (10. 10.8.179). - connect (111: Connection refused)
Err:2 http ://ppa.launchpad .net/certbot/certbot/ubuntu bionic InRelease
  Could not connect to 10. 10.8.179:8080 (10. 10.8.179). - connect (111: Connection refused)
Err:3 http ://archive.ubuntu .com/ubuntu bionic InRelease
  Could not connect to 10. 10.8.179:8080 (10. 10.8.179). - connect (111: Connection refused)
Err:4 http ://archive.ubuntu .com/ubuntu bionic-security InRelease
  Unable to connect to 10. 10.8.179:8080:
Err:5 http ://archive.ubuntu .com/ubuntu bionic-updates InRelease
  Unable to connect to 10. 10.8.179:8080:
Reading package lists... Done
W: Failed to fetch http ://archive.ubuntu .com/ubuntu/dists/bionic/InRelease  Could not connect to 10. 10.8.179:8080 (10. 10.8.179). - connect (111: Connection refused)
W: Failed to fetch http ://archive.ubuntu.com/ubuntu/dists/bionic-security/InRelease  Unable to connect to 10. 10.8.179:8080:
W: Failed to fetch http ://archive.ubuntu .com/ubuntu/dists/bionic-updates/InRelease  Unable to connect to 10. 10.8.179:8080:
W: Failed to fetch https ://download.docker .com/linux/ubuntu/dists/bionic/InRelease  Could not connect to 10. 10.8.179:8080 (10. 10.8.179). - connect (111: Connection refused)
W: Failed to fetch http ://ppa.launchpad .net/certbot/certbot/ubuntu/dists/bionic/InRelease  Could not connect to 10. 10.8.179:8080 (10. 10.8.179). - connect (111: Connection refused)
W: Some index files failed to download. They have been ignored, or old ones used instead.

Я удалил все конфигурации прокси в переменных среды и для Кв. в/etc/apt/apt.conf.d/proxy.conf и/etc/apt/apt.conf, но ошибка все еще появляется. Какие-либо идеи исправить мою склонную Ubuntu?

Спасибо.