To access Hostnet.nl based servers via SSH you might hit an error where SSH terminal feedback tells you that their offer is `ssh-rsa`:
ssh email@example.com Unable to negotiate with xx.xxx.x.xx port 22: no matching host key type found. Their offer: ssh-rsa
The issue then issue that your SSH environment and key used is too modern for them. You should then use
ssh -o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa firstname.lastname@example.org
that will then allow you to log into their outdated system .
P.S. Kudos to Genymotion for the solution.