After NXOS Upgrade to 10.2.4 a User May see WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
(Doc ID 2934397.1)
Last updated on MAY 15, 2024
Applies to:
Cisco Nexus Switch - Version All Versions to All Versions [Release All Releases]Information in this document applies to any platform.
Symptoms
After a fresh upgrade of a Cisco 9K switch to NX-OS 10.2.4, a user may see this message when ssh to the switch.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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
SHA256:j/r0s4UkYQ854tU75NkHCzKx3tqRAtjANzf+irJyjA4.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending RSA key in /root/.ssh/known_hosts:3
RSA host key for switch123-rocea0 has changed and you have requested strict
checking.
Host key verification failed.
Cause
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In this Document
Symptoms |
Cause |
Solution |