Link to home
Start Free TrialLog in
Avatar of Cobraiti
Cobraiti

asked on

OpenSSH Clearing RSA fingerprints ?

Hi,

I'm connecting from my windows box to a remove ubuntu box using putty - SSH session.  When I first connect i get the putty alert about accepting the new server host key and also shows the RSA fingerprint.  I've accept the key so everytime I make a ssh server it works without the prompt and I can login to the linux box

What I want to know is how do I delete this key on the server so when I use my pc to connect  remotely the prompt comes up again.  I've tried to delete the fingerprint id from known_hosts and restart the SSH server but I connected straight away Essentially I want to clear all entries on the server so my PC would be given a new key

The odd thing is even after I've delete all the entries from the Know_hosts file I can still connect via ssh to the server ?   Shouldn't it record a new fingerprint ?

Hope this makes sense Your input would be most appreciated
ASKER CERTIFIED SOLUTION
Avatar of upanwar
upanwar
Flag of India image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of gelonida
Hm perhaps I don't understand correctly

If you connect from a windows putty client to a server, then you have to clean up on the windows putty client side


putty stores the fingerprints in the windows registry:

look at
HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\SshHostKeys

See also:
http://www.chiark.greenend.org.uk/~sgtatham/putty/faq.html


Avatar of Cobraiti
Cobraiti

ASKER

Thanks. That worked :)