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Posted to commits@airflow.apache.org by "LeslieZhu (via GitHub)" <gi...@apache.org> on 2025/12/23 04:59:18 UTC

[D] How can AirFlow connections work with old CentOS's old SSH algorithms? [airflow]

GitHub user LeslieZhu created a discussion: How can AirFlow connections work with old CentOS's old SSH algorithms?

I have an old CentOS host, so I need to use .ssh/config to ssh it because the old Algorithms:

```
$ cat ~/.ssh/config
Host TestHost
    HostKeyAlgorithms +ssh-rsa,ssh-dss
    PubkeyAcceptedKeyTypes +ssh-rsa,ssh-dss
    KexAlgorithms +diffie-hellman-group-exchange-sha256
```

I want to use Airflow3 now, but the connection always failed. 

I think that's because I need to let AirFlow to read or configure like the ~/.ssh/config. I suppose the AirFlow default disabled the SSH old Algorithms.

How can I do that?

GitHub link: https://github.com/apache/airflow/discussions/59735

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Re: [D] How can AirFlow connections work with old CentOS's old SSH algorithms? [airflow]

Posted by "LeslieZhu (via GitHub)" <gi...@apache.org>.

GitHub user LeslieZhu closed a discussion: How can AirFlow connections work with old CentOS's old SSH algorithms?

I have an old CentOS host, so I need to use .ssh/config to ssh it because the old Algorithms:

```
$ cat ~/.ssh/config
Host TestHost
    HostKeyAlgorithms +ssh-rsa,ssh-dss
    PubkeyAcceptedKeyTypes +ssh-rsa,ssh-dss
    KexAlgorithms +diffie-hellman-group-exchange-sha256
```

I want to use Airflow3 now, but the connection always failed. 

I think that's because I need to let AirFlow to read or configure like the ~/.ssh/config. I suppose the AirFlow default disabled the SSH old Algorithms.

How can I do that?

GitHub link: https://github.com/apache/airflow/discussions/59735

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Re: [D] How can AirFlow connections work with old CentOS's old SSH algorithms? [airflow]

Posted by "LeslieZhu (via GitHub)" <gi...@apache.org>.

GitHub user LeslieZhu closed the discussion with a comment: How can AirFlow connections work with old CentOS's old SSH algorithms?

juse add this in extra_json:

```
"disabled_algorithms": {"pubkeys": ["rsa-sha2-256", "rsa-sha2-512"]},
```

GitHub link: https://github.com/apache/airflow/discussions/59735#discussioncomment-15323993

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