# Windows – Where does Putty store known_hosts information on Windows

known-hostsputtysshwindows

How do I tell if Putty already knows about and has cached credentials for specific ssh servers?

Another way to ask this question is what is the Windows/Putty equivalent of a unix/ssh known_hosts file?

Putty stores known hosts under a registry key: HKEY_CURRENT_USER\SoftWare\SimonTatham\PuTTY\SshHostKeys.