ssh keeps asking for confirmation although the server key is in the known_hosts file when there is another conflicting key in that file
Issue
When sshing to a system from Red Hat Enterprise Linux it asks "are you sure you want to continue" at every login and you need to type in "yes" every time. For example:
$ ssh -l root my-ssh-server
Warning: the RSA host key for 'my-ssh-server' differs from the key for the IP address '10.0.0.1'
Offending key for IP in /root/.ssh/known_hosts:133
Matching host key in /root/.ssh/known_hosts:144
Are you sure you want to continue connecting (yes/no)?
You want for ssh to log in without user interaction. Installing the key from the server into ~/.ssh/known_hosts as per http://kbase.redhat.com/faq/docs/DOC-9195 doesn't resolve the issue.
Environment
RHEL 3, 4, 5 or 6 on the ssh client side
the server key is in the ~/.ssh/known_hosts file
another key for the same server is in the ~/.ssh/known_hosts file
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