host key verification failed
I upgraded the Turtlebot laptop to Ubuntu 12.04 and ROS Fuerte. After that, I tried to ssh from my workstation. It gave this error:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the RSA key sent by the remote host is ca:e6:7b:30:7f:bf:5a:ca:fe:.... Please contact your system administrator. Add correct host key in /home/davidchik/.ssh/known_hosts to get rid of this message. Offending RSA key in /home/davidchik/.ssh/known_hosts:1
remove with: ssh-keygen -f "/home/davidchik/.ssh/known_hosts" -R 172.17... RSA host key for 172.17... has changed and you have requested strict checking. Host key verification failed.
How to reset this key?
Thank you very much.