It also does not work trying the option "-4" from this bug report: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/657302
tail -3 /etc/init/ssh.conf
add -4 to the last line exec /usr/sbin/sshd -4
It also does not work trying the option "-4" from this bug report: /bugs.launchpad .net/ubuntu/ +source/ openssh/ +bug/657302
https:/
tail -3 /etc/init/ssh.conf
add -4 to the last line
exec /usr/sbin/sshd -4