# Release: 2.0.6.1 (beta) 2021-05-03 - SSH: Validation of server fingerprint failed

**URL:** <https://forum.duplicati.com/t/release-2-0-6-1-beta-2021-05-03-ssh-validation-of-server-fingerprint-failed/12321>\
**Category:** Support\
**Created:** [May 4, 2021, 12:35pm UTC](https://forum.duplicati.com/t/release-2-0-6-1-beta-2021-05-03-ssh-validation-of-server-fingerprint-failed/12321 "2021-05-04T12:35:39Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![ts678](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@ts678](https://forum.duplicati.com/u/ts678)\
**Post date:** [May 5, 2021, 9:38pm UTC](https://forum.duplicati.com/t/release-2-0-6-1-beta-2021-05-03-ssh-validation-of-server-fingerprint-failed/12321/7 "2021-05-05T21:38:19Z")

</div>

> [@bcsteeve](#):
>
> No other changes than installing this update. I don’t know what to do.

Did you try the release note method given [earlier](https://forum.duplicati.com/t/release-2-0-6-1-beta-2021-05-03-ssh-validation-of-server-fingerprint-failed/12321/2) that worked OK [here](https://forum.duplicati.com/t/release-2-0-6-1-beta-2021-05-03-ssh-validation-of-server-fingerprint-failed/12321/3)?

1. In Advanced options, delete fingerprint
2. Press `Test connection` and accept?

> [@bcsteeve](#):
>
> I tried deleting the config directory and letting docker rebuild it.

Which config directory? Docker won’t rebuild ~/.config/duplicati. Settings are in Duplicati-server.sqlite.

> [@bcsteeve](#):
>
> I tried deleting the known\_hosts file. That didn’t help.

Duplicati doesn’t use OpenSSH, which is non-portable native code. It uses [SSH.NET](https://github.com/sshnet/SSH.NET). I found one issue with fingerprints reported there, 10 months into Beta, so it seems more likely that your issue is Duplicati.

If the two-step fix doesn’t work, then you could [Export As Command-line](https://duplicati.readthedocs.io/en/latest/03-using-the-graphical-user-interface/#exporting-a-backup-job-configuration) and see if you see a fingerprint after you deleted the most obvious one. It might be possible that your old fingerprint is stored elsewhere.

---

_[View the full topic](https://forum.duplicati.com/t/release-2-0-6-1-beta-2021-05-03-ssh-validation-of-server-fingerprint-failed/12321)._