Whenever I re-install a server ssh issues a warning: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 f1:7c:70:31:8f:2a:da:eb:21:37:e9:1a:6c:3d:d4:7a. Please contact your system administrator. Add correct host key in /home/foo/.ssh/known_hosts to get rid of this message. Offending key in /home/foo/.ssh/known_hosts:218 Password authentication is disabled to avoid man-in-the-middle attacks. Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks. But these are local compute-nodes in a cluster so that warning is quite superfluous. In order to suppress this ssh warning I trick ssh by this hack: cat ~foo/.ssh/config host local_server_name* StrictHostKeyChecking no UserKnownHostsFile=/dev/null But I still get ssh going through the unnecessary step where it still adds to the non-exisitant known_hosts file. Warning: Permanently added 'eu003,10.0.0.3' (RSA) to the list of known hosts. Warning: Permanently added 'eu004,10.0.0.4' (RSA) to the list of known hosts. [snip] This does add an overhead at startup of jobs that ssh to multiple servers. Is there a better way out to completely suppress remote host identification checks? -- Rahul -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
