Grab Banner

Sometimes SSH service expose a banner with some useful information about version, service maintener, company, etc...

  1. ssh <ip> Error due to missing key exchange algorithm:

  2. ssh 192.168.11.129 -oKexAlgorithms=+diffie-hellman-group1-sha1 Error due to missing host key type: 3.ssh 192.168.11.129 -oKexAlgorithms=+diffie-hellman-group1-sha1 -oHostKeyAlgorithms=ssh-rsa Error due to missing cypher:

  3. ssh 192.168.11.129 -oKexAlgorithms=+diffie-hellman-group1-sha1 -oHostKeyAlgorithms=ssh-rsa -caes128-cbc See for a banner.