verifique se há uma linha contendo a palavra Proxy neste arquivo
/etc/apt/apt.conf.d/70debconf
e se a palavra Proxy estiver presente, exclua a linha e depois execute o comando apt update
fonte: link
Eu tinha um servidor de cache apt instalado em 192.168.40.97:3142 usando apt-cacher-ng . Para usá-lo no meu laptop, adicionei um arquivo 02proxy no diretório /etc/apt/apt.conf.d que tinha o seguinte conteúdo.
Acquire::http { Proxy "http://192.168.40.97:3142"; };
Mas eu queria usar o apt sem proxy, pois o servidor tinha alguns problemas. Então eu deletei o arquivo 02proxy e tentei apt update . Mas ainda está tentando se conectar ao servidor.
r2m@ssl-60:/etc/apt/apt.conf.d$ sudo apt update
Err:1 http://in.archive.ubuntu.com/ubuntu xenial InRelease
Could not connect to 192.168.40.97:3142 (192.168.40.97). - connect (111: Connection refused)
Err:2 http://in.archive.ubuntu.com/ubuntu xenial-updates InRelease
Unable to connect to 192.168.40.97:3142:
Err:3 http://in.archive.ubuntu.com/ubuntu xenial-backports InRelease
Unable to connect to 192.168.40.97:3142:
Err:4 http://security.ubuntu.com/ubuntu xenial-security InRelease
Could not connect to 192.168.40.97:3142 (192.168.40.97). - connect (111: Connection refused)
Reading package lists... Done
Building dependency tree
Reading state information... Done
6 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not connect to 192.168.40.97:3142 (192.168.40.97). - connect (111: Connection refused)
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Unable to connect to 192.168.40.97:3142:
W: Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Unable to connect to 192.168.40.97:3142:
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease Could not connect to 192.168.40.97:3142 (192.168.40.97). - connect (111: Connection refused)
W: Some index files failed to download. They have been ignored, or old ones used instead.
O que deve ser feito para remover o proxy? Estou usando no Ubuntu 16.04
Linux ssl-60 4.10.0-42-generic #46~16.04.1-Ubuntu SMP Mon Dec 4 15:57:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
verifique se há uma linha contendo a palavra Proxy neste arquivo
/etc/apt/apt.conf.d/70debconf
e se a palavra Proxy estiver presente, exclua a linha e depois execute o comando apt update
fonte: link
Tags apt proxy apt-cacher ubuntu