SSH debug errors When issuing ssh -vvv [email protected] the output includes the following debug messages: [ ] debug3: Incorrect RSA1 identifier debug3: Could not load Stack Exchange Network Stack Exchange network consists of Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I have a setup where I'm running Ubuntu as a VirtualBox guest under a Windows 7 host, behind a restrictive corporate firewall. I have set up NAT from the host port 22 to Ubuntu's port 22; IT inform me that they have opened port 22 outbound for the host machine's IP address. Can't ssh into AWS Ubuntu server from Bash on Windows. debug3: Incorrect RSA1 identifier debug3: Could not load "id_rsa" as a RSA1 public key debug1: identity file id_rsa type 1 debug1: identity file id_rsa-cert type -1 debug1: Enabling compatibility mode for protocol debug1: Local version string SSHOpenSSH_p1 Ubuntu.