I have a centos box that will need to ssh into 2 other centos boxes (with keys). Now one of these boxes is a firewall, and another is a system behind the firewall. I have rules in my firewall to punch into the system behind the FW. Now if i connect to the IP (sine the public one is shared), anytime i connect to the other system, I get the host verification failed error and have to remove the IP from the known_hosts file. What is the best (secure) way to get around this? I know i can disable the check, but that is not my preferred way. Thanks. d