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https://issues.apache.org/jira/browse/AIRFLOW-3410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701220#comment-16701220
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ASF GitHub Bot commented on AIRFLOW-3410:
-----------------------------------------
kaxil opened a new pull request #4249: [AIRFLOW-3410] Add feature to allow Host
Key Change for SSH Op
URL: https://github.com/apache/incubator-airflow/pull/4249
Make sure you have checked _all_ steps below.
### Jira
- [x] My PR addresses the following [Airflow
Jira](https://issues.apache.org/jira/browse/AIRFLOW/) issues and references
them in the PR title.
- https://issues.apache.org/jira/browse/AIRFLOW-3410
### Description
- [x] Here are some details about my PR, including screenshots of any UI
changes:
This PR adds a feature to allow connecting to host (that already has an
entry in Known Host file with different key) that has a new IP. Currently, it
fails with `Remote Identification Changed`.
I have also added documentation on adding extras field to SSH Connection
### Tests
- [x] My PR adds the following unit tests __OR__ does not need testing for
this extremely good reason:
### Commits
- [x] My commits all reference Jira issues in their subject lines, and I
have squashed multiple commits if they address the same issue. In addition, my
commits follow the guidelines from "[How to write a good git commit
message](http://chris.beams.io/posts/git-commit/)":
1. Subject is separated from body by a blank line
1. Subject is limited to 50 characters (not including Jira issue reference)
1. Subject does not end with a period
1. Subject uses the imperative mood ("add", not "adding")
1. Body wraps at 72 characters
1. Body explains "what" and "why", not "how"
### Documentation
- [x] In case of new functionality, my PR adds documentation that describes
how to use it.
- When adding new operators/hooks/sensors, the autoclass documentation
generation needs to be added.
### Code Quality
- [x] Passes `flake8`
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> Remote Host Identification Has Changed Error while using SSHOperator
> --------------------------------------------------------------------
>
> Key: AIRFLOW-3410
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3410
> Project: Apache Airflow
> Issue Type: New Feature
> Components: contrib
> Reporter: Kaxil Naik
> Assignee: Kaxil Naik
> Priority: Minor
> Fix For: 1.10.2
>
>
> Currently, there is no provision in Airflow's implementation of SSHOperator
> to disable Host Checking and use a Null Known Host file to allow connecting
> to host that has a new IP.
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