On Tue, 2003-06-03 at 13:55, jeff allen wrote: > I have just recently updated the disk image on all 22 linux machines in our > office. If I try to ssh into these machines I get the following 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 the RSA host key has just been changed. > The fingerprint for the RSA key sent by the remote host is > 48:d8:23:48:f1:f5:d4:41:df:70:d8:34:0a:8b:96:e9. > Please contact your system administrator. > Add correct host key in /.ssh/known_hosts to get rid of this message. > Offending key in /.ssh/known_hosts:20 > RSA host key for frost has changed and you have requested strict checking. > Host key verification failed. > > How does one go about updating the host key?
You can edit by hand updating the 20th entry on the known_hosts file or as I do it I just delete the entry log in again. When you log into the machine again it will update it. The first method is more secure since you are assured that the host key you have obtain by some other mean is the right one. The second method trusts that nothing has happened to tamper with the key received in transit. All depends on how secure you want to be. Stephen -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
