1) I have a number of machines where I often ssh from one to another.  I just did that with a regular pair and got:

Warning: the RSA host key for 'triggerfish' differs from the key for the IP address '192.168.2.124'
Offending key for IP in /home/larry/.ssh/known_hosts:2
Matching host key in /home/larry/.ssh/known_hosts:3
Are you sure you want to continue connecting (yes/no)? yes
Linux triggerfish 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:07:13 UTC 2011 x86_64 GNU/Linux
Ubuntu 10.04.3 LTS

 I GUESS but do not KNOW that the known_hosts[2] and [3] refer to the 2nd and 3rd or 3rd and 4th entries out of the 12 that exist.  I do NOT want to be editing those all the time so does anyone know a way to avoid that?

2) When I ssh into a machine, it is not clear what if any aliases from .bashrc or .bash_profile are in play (from the originationg machine/user or the target?  It often seems like neither.
--
Dazed_75 a.k.a. Larry

The spirit of resistance to government is so valuable on certain occasions, that I wish it always to be kept alive.
  - Thomas Jefferson