Jeff Wieland wrote:
> We're looking a something to replace our aging (and BREAK-prone) Xyplex
> terminal servers that we use to provide console access to our Sun servers.
> The criteria I've been using so are are:
>
> 1. No BREAKS on powerdown, powerup, or restart of terminal server.
> 2. SSH remote access.
> 3. Conserver compatibility.
> 4. TACACS authentication would be a plus (since we already run a TACACS
> server for our routers and switches).
>
> One terminal server that appears to fit the bill is the Digi CM. Does
> anyone have experience with using these with Suns?
>
> BTW, I have read through Stokely Consulting Unix Serial Port Resources
> pages.
> --
> Jeff Wieland

With respect to the breaks, you can configure Sun systems to use an
alternative break sequence (tilde control-b) via the command line (kbd
-a alternate) and also by uncommenting the appropriate line in
/etc/default/kbd:

# Uncomment the following line to enable a non-BREAK alternate
# serial input device abort sequence:
#KEYBOARD_ABORT=alternate

You can do both which will make the change immediately and also preserve
it for later reboots. This eliminates the system going to ok due to
terminal server poweron/off, cable connect/disconnect,etc since the
system will then only accept the alt break sequence.