For those who don’t know about Putty, you should take some times to read Putty FAQ, SSH-related articles in WalkerNews.net or Google them from the Net.
In brief, Putty is a SSH client freeware for Windows and Linux/Unix. Putty port to other platforms is under way.
While connecting to remote SSH server for the first time, Putty suite will prompt user to acknowledge acceptance of the remote server’s SSH host key fingerprint.
At this time, you could click Yes button to keep/cache the SSH host key fingerprint in Windows Registry, if you’re certain that’s the genuine server you’re connecting to.
After clicking the Yes button, Putty won’t prompt you for acknowledgement on the subsequent SSH connections made to this specific server, unless the host key fingerprint mismatch or the cache in Windows Registry has been removed/deleted.
Where does Putty keeps / caches the host key fingerprint in Windows Registry?
According to the Putty FAQ, the remote server’s SSH host key fingerprints are kept in this Windows Registry path:
In brief, Putty is a SSH client freeware for Windows and Linux/Unix. Putty port to other platforms is under way.
While connecting to remote SSH server for the first time, Putty suite will prompt user to acknowledge acceptance of the remote server’s SSH host key fingerprint.
At this time, you could click Yes button to keep/cache the SSH host key fingerprint in Windows Registry, if you’re certain that’s the genuine server you’re connecting to.
After clicking the Yes button, Putty won’t prompt you for acknowledgement on the subsequent SSH connections made to this specific server, unless the host key fingerprint mismatch or the cache in Windows Registry has been removed/deleted.Where does Putty keeps / caches the host key fingerprint in Windows Registry?
According to the Putty FAQ, the remote server’s SSH host key fingerprints are kept in this Windows Registry path:
HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\SshHostKeys
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