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Add faq note about ssh ServerAliveInterval (#55568)

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Klaas Demter 2019-05-01 19:04:40 +02:00 committed by Alicia Cozine
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docs/docsite/rst/reference_appendices/faq.rst
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@ -96,6 +96,13 @@ With earlier versions of Ansible, it was necessary to configure a
suitable `ProxyCommand` for one or more hosts in `~/.ssh/config`,
or globally by setting `ssh_args` in `ansible.cfg`.
.. _ssh_serveraliveinterval:
How do I get Ansible to notice a dead target in a timely manner?
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
You can add ``-o ServerAliveInterval=NumberOfSeconds`` in ``ssh_args`` from ``ansible.cfg``. Without this option, SSH and therefore Ansible will wait until the TCP connection times out. Another solution is to add ``ServerAliveInterval`` into your global SSH configuration. A good value for ``ServerAliveInterval`` is up to you to decide; keep in mind that ``ServerAliveCountMax=3`` is the SSH default so any value you set will be tripled before terminating the SSH session.
.. _ec2_cloud_performance:
How do I speed up management inside EC2?