In this example of sshd_config only protocol-version 2 is used, but "RSAAuthentication" does apply to version 1 only. Code Listing 11.3: /etc/ssh/sshd_config: #Only enable version 2 Protocol 2 #Turn on RSA key authentication RSAAuthentication yes from `man sshd_config`: RSAAuthentication Specifies whether pure RSA authentication is allowed. The default is ``yes''. This option applies to protocol version 1 only. Reproducible: Always Steps to Reproduce: 1. 2. 3.
I've updated the guide to reflect the usage of proto-2 only. RSA is removed; DSA is recommended. Thanks for reporting!