This is OpenSSH version 5.6p1. There are following changes in default settings of ssh client: * Accepting and sending of locale environment variables in protocol 2 is enabled. * New host keys will be hashed to and them unusable for malicious people or software trying to use known_hosts to find further hops. * Tunneled clear text passwords are disabled. * PAM authentication is enabled. * Only support for protocol 2 is enabled.