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Searching in: Feature Requests
ID: FR05Q03834
Added on:  2019-05-06
Last update: 2019-08-28
Priority: Low
Products: NoMachine Server
Target: 7
Status:  Approved
Adding support for RSA keys in the new OpenSSH format

RSA keys generated with openssh version 7.8p1-1 or later introduces a new format: the private key has "OPENSSH" written in the first line instead than "RSA".

This new format has to be supported by NoMachine when using key-based authentication, both in case of connections by NX and SSH protocol. This last case require updates to the libssh2 library shipped by NoMachine packages (see

As a temporary solution, it's possible to generate SSH keys in the old format by using openssh 7.8p1-1or later with appropriate switches.

For example on Linux:
ssh-keygen -m PEM -t rsa -b 4096

(PEM specifies the old format)



Notify me when the FR is implemented.