> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/powershell/da/remote-desktop-manager-powershell/ssh-algorithm-support.md).

# SSH algorithm support

Fix SSH\_FAIL\_NO\_MATCH forbindelse fejl i Remote Desktop Manager af enabling yderligere SSH algorithm support for en enkelt post eller globally.

Følgende fejl meddelelse kan appear når opening en Sikker Shell (SSH) forbindelse i Remote Desktop Manager: "En unexpected fejl har occurred: Fejl code SSH\_FAIL\_NO\_MATCH (-3006) Unable at finde en matchende algorithm med SSH server".

### Lokal løsning for en post

{% hint style="warning" %}
Remote Desktop Manager nu har en valg af algorithms for SSH session type. note at **unsecured** ones er ikke aktiveret som standard. Vi therefore recommend at kontrollere algorithms direkte på serveren for sikkerhed purposes. Otherwise, follow trinnene under at hente denne problem.
{% endhint %}

1. Rettighed-click på problematic post og select ***Egenskaber***, derefter go til ***Almindelig*** – ***Generel.***
2. I ***Avanceret*** fane, sæt ***Algorithm support*** indstilling til ***Brugerdefineret***.
3. Click på ellipsis knap (***...***) at appeared til rettigheden af ***Algorithm support*** indstilling.
4. I ny ***SSH*** vindue, select manglende algorithms fra listen.

   <div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p>Gør sure til go gennem algorithms i alle faner før proceeding.</p></div>
5. Click ***OK*** i ***SSH*** vindue, derefter ***OK*** igen i vinduet af posten egenskaber.

   <div data-gb-custom-block data-tag="hint" data-style="info" class="hint hint-info"><p>Den kan være nødvendig til restart Remote Desktop Manager for løsning til take virkning.</p></div>
6. Test forbindelsen. Hvis forbindelsen stadig work ikke efter enabling algorithms, return til ***Avanceret*** fane i posten egenskaber, og check ***Skip miljø variabel setup*** box. Click ***OK*** til effectuate ændringen.

### Global løsning for alle poster

Den er også mulig til globally reactivate alle algorithms i Remote Desktop Manager via ***Fil*** – ***Indstillinger*** – ***Post typer*** – ***Sessioner*** – ***Terminal*** – ***Algorithm support*** menu. Select manglende algorithms, derefter click ***OK***.

{% hint style="warning" %}

* Gør sure til go gennem algorithms i alle faner.
* Den kan være nødvendig til restart Remote Desktop Manager for løsning til take virkning.
  {% endhint %}

### Brugerdefineret Powershell kommando script

Hvis problem gemmer på en specifik post, run følgende PowerShell script i Remote Desktop Manager.

1. Rettighed-click på problematic post, derefter select ***Edit*** – ***Edit (særlig handlinger)***.
2. I ***Edit – Særlig handling valg*** vindue, select ***Brugerdefineret PowerShell kommando*** generel særlig handling og click ***OK***.
3. Paste følgende script i ***Kommando*** felt:

   ```powershell
   $Connection.Terminal.AlgorithmSupportMode = "Custom"
   $Connection.Terminal.SshAlgorithmCipherList = "aes256-gcm@openssh.com=True;aes128-gcm@openssh.com=True;aes128-cbc=True;aes192-cbc=True;aes256-cbc=True;rijndael-cbc@lysator.liu.se=True;3des-cbc=True"
   $Connection.Terminal.SshAlgorithmHostKeyList = "ssh-dss=True"
   $Connection.Terminal.SshAlgorithmKexList = "diffie-hellman-group14-sha1=True;diffie-hellman-group-exchange-sha1=True;diffie-hellman-group1-sha1=True"
   $Connection.Terminal.SshAlgorithmMaclist = "hmac-sha1-96=True;hmac-sha1=True;hmac-md5-96=True;hmac-md5=True"
   $RDM.Save();
   ```
4. Klik på ***OK***.
5. En meddelelse bør confirm fuldført af scriptet. Click ***OK*** og retest sessionen.

### Se også

* [Devolutions Academy – Configure SSH algorithm support](https://academy.devolutions.net/student/page/3288493-configure-ssh-algorithm-support?sid_i=0)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.devolutions.net/powershell/da/remote-desktop-manager-powershell/ssh-algorithm-support.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.