We use "conserver" on Solaris-2.6 (SPARC Classic :-) with a Central Data SCSI Terminal Server (now Digi Corporation). The hardware is described at:
http://www.digi.com/solutions/termsrv/scsitermsrv.shtml
The software and a bunch of similar software & hardware solutions are described at:
http://www.conserver.com/ http://www.certaintysolutions.com/consoles/
Regards,