Host key verification: 2025 file location update?

[soft.sand0618]

Hi,

In the past, using Win 10, have used this 2020 post to find crt key file for manual verification of SHA256 hash. Now, using Win 11, am getting non-matching hashes when attempting to connect. Saw this 2022 post but it does not provide a file path that will produce a matching crt key file. Searched the forum with no updated post showing any other file location.

Using (free) v 18.16.1 on Win 10 Home 22H2 & 11 Pro 24H2

Verified both through win cmd certutil and Karen’s hasher that the crt file located at C:\Program Files\NoMachine\etc\keys\host is not the matching file.

A file search for nx_host_rsa_key.crt did not find another version.

Strangely, there is an NX folder which I cannot get access to at C:\Users\nx

Any help to find the active crt is very much appreciated, as is this forum

[Britgirl]

Hi, the path is C:\Program Files (x86)\NoMachine\etc\keys\host\nx_host_rsa_key.crt. Can you tell us the precise steps you took to verify the NoMachine host key certificate?

[soft.sand0618]

Based on image attached, left side shows Karen’s hasher and CMD windows certutil matching for the hash of the crt in Program Files on the Win 11 box – just to be redundant.

The right side shows a Linux box calling back to the same Win 11 box showing the mis-match; below shows Win 11 box with no NoMachine folder inside of Program Files (x86).

I’ve redacted the center of the hashes but they do in-fact match on the left side of the attachment.

Thanks for your time

Attachments:

1. NoMachine-001.pdf

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