Canonical client has opened a case regarding this as a current issue preventing them from upgrading their systems from 14.04 to 18.04.
This blocker is due to the version of openssh-server on Bionic not allowing the SolarWinds monitoring agent to establish a successful SSH connection, as it advertises SSH-1.99 as the protocol. I have updated the Impact statement in the initial comment with further information and references. Please re-evaluate this bug as having a current impact on some clients. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1863930 Title: SSH 1.99 clients fail to connect to openssh-server 1:7.6p1-4ubuntu0.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1863930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs