cross-connecting console ports?

[Miles Fidelman <mfidelman@meetinghouse.net>]

Hi Folks,

I have two rack-mounted servers located in a datacenter, running Debian 
Lenny.  Every once in a while, in order to install stuff, I have to 
physically go to the data center and connect a terminal to one server or 
the other.

Short of buying a remote KVM, it occurs to me that it might be possible 
to cross-connect the serial ports on the two computers - using a 
terminal program on one, to access the other, and vice versa.

Has anybody done this?  Any suggestions on where to start - both re. 
cabling (USB vs. serial cross-over), and/or software?

Thanks very much,

Miles Fidelman

--
In theory, there is no difference between theory and practice.
In<fnord>  practice, there is.   .... Yogi Berra