I seem to recall that Solaris creates a file during first installation and when
sysunconfigure or something like that is run. It does delete a load of configuration stuff including SSH server keys, network settings etc. - or at least it did when i worked on Solaris 2.6
There is probably a manual page for it, but I'm failing to get the command name right, so I can't read it myself (not having Solaris any more)
Maybe following the process that does might clear out a half-cooked server and next boot will ask you to define them all again. I'm assuming that this is not a server in production use yet because of what you were doing, but it might need some rework if there were some application development services on it.
I hope this helps, but sorry for being a bit vague. Perhaps it would be wise to wait until others have put in their thoughts before just ploughing on with this.
Robin