It's usually best in this case to check to see if you see anything in the server (ESXi) side security/messages log.
If you don't see anything there, re-verify your connection information to be sure that the connection was attempted, and ensure that there is no firewall between jenkins and the SSH process that might be blocking the connection. Brian On Wed, Feb 22, 2012 at 2:39 PM, Anthony Ho <anthony...@gmail.com> wrote: > I am not able to configure the SSH plugin to connect to an ESXi 5.0 > server (as well as some other hosts) as root user with the error > message “Can’t connect to server”. > > There are some hosts that I am able to connect to without any > problems. > > Is there something I need to configure in the ESXi server or in the > hosts which I cannot connect to? > > I have no problems running ssh as root user to any of these hosts from > the system hosting Jenkins and running as user “jenkins”. > > Thank you for your help. > > --Anthony >