HP inside lights out and OpenSSH

Problem

The sshd server implementation made by HP on ILO cards - especially older ones - can be notoriously difficult to use with newer versions of OpenSSH.

The main reason is algorithms rendered unsafe by old age combined with a very strange implementation by HPs hands.

Solution

The following configuration on the client side made my current version of OpenSSH play reasonably nice with ILO / SSH. There is some unexplained disconnects by the server I cannot figure out. 

In .ssh/config

Host <hostname>/<IP>

PasswordAuthentication yes

ChallengeResponseAuthentication no

GSSAPIAuthentication no

HostbasedAuthentication no

PubkeyAuthentication no

RSAAuthentication no

Compression no

ForwardAgent no

ForwardX11 no

Ciphers aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128

HostKeyAlgorithms ssh-rsa,ssh-dss

KexAlgorithms diffie-hellman-group1-sha1

MACs hmac-sha1

ServerAliveInterval 0

Result

You can now SSH to the ILO card and use the cmd line tool from HP. Issue a 

</>hpiLO-> remcons

To get a real HW console bridged over the network.