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rsync WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!


daves
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What causes the following error condition to occur?

 

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

 

@ 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

2e:6d:62:60:83:48:9d:89:a8:f5:d7:9c:9a:35:04:c8.

 

Please contact your system administrator.

 

Add correct host key in /cygdrive/c/Users/daves.ABD/.ssh/known_hosts to get rid of this message.

 

Offending key in /cygdrive/c/Users/daves.ABD/.ssh/known_hosts:3

 

Password authentication is disabled to avoid man-in-the-middle attacks.

 

Keyboard-interactive authentication is disabled to avoid man-in-the-middle attacks.

 

Permission denied (publickey,password).

 

rsync: connection unexpectedly closed (0 bytes received so far) [sender]

rsync error: error in rsync protocol data stream (code 12) at /home/lapo/packaging/rsync-3.0.4-1/src/rsync-3.0.4/io.c(632) [sender=3.0.4]

 

It happened on a DT 4-axis demo rack we have in the office.

 

I fixed the condition by removing the offending line in the known_hosts file. I don't think a lot of our company who will be performing upgrades by hand (due to other issues) would be comfortable dealing with this if it arose.

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daves:

 

I'm not sure what software you're using here, but the error is just saying that you are trying to connect to an IP address that has a different RSA key from the last time you connected to that IP address.

 

Everytime I connect WinSCP to a new Power PMAC (which of course has a new RSA key) I get this message until I permanently accept the new key.

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Sorry, this is from the IDE, I think it is being sent back by rsync.

 

The only way to clear it seems to be manual file editing, it would be nice if (like WinSCP or PuTTY) there could be a button in the IDE to clear it. It is not friendly for non-techies

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