Estou tentando instalar o openssh-server no Ubuntu 16.04, mas está falhando. Aqui está a saída que eu recebo depois de todo o fracasso:
ptkm@dc:~$ sudo -s
[sudo] password for ptkm:
root@dc:~# sudo apt-get install openssh-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
openssh-sftp-server
Suggested packages:
ssh-askpass rssh molly-guard monkeysphere
Recommended packages:
ncurses-term ssh-import-id
The following NEW packages will be installed:
openssh-server openssh-sftp-server
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 377 kB of archives.
After this operation, 1,021 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Err:1 http://security.ubuntu.com/ubuntu xenial-security/main amd64 openssh-sftp-server amd64 1:7.2p2-4ubuntu2.1
Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1560:8001::14). - connect (101: Network is unreachable) [IP: 2001:67c:1560:8001::14 80]
Err:2 http://security.ubuntu.com/ubuntu xenial-security/main amd64 openssh-server amd64 1:7.2p2-4ubuntu2.1
Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1560:8001::14). - connect (101: Network is unreachable) [IP: 2001:67c:1560:8001::14 80]
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-sftp-server_7.2p2-4ubuntu2.1_amd64.deb Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1560:8001::14). - connect (101: Network is unreachable) [IP: 2001:67c:1560:8001::14 80]
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/o/openssh/openssh-server_7.2p2-4ubuntu2.1_amd64.deb Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1560:8001::14). - connect (101: Network is unreachable) [IP: 2001:67c:1560:8001::14 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
root@dc:~#
Eu tenho uma boa conexão com a Internet, mas não entendo por que isso está falhando, na verdade, todas as operações on-line que usam o terminal estão falhando.