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improved documentation

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Hossein Shafagh 2021-03-10 13:29:53 -08:00
parent 13539814db
commit e48f4ffe77
1 changed files with 5 additions and 3 deletions
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docs/administration.rst
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@ -874,9 +874,11 @@ account. See :ref:`Using a pre-existing ACME account <AcmeAccountReuse>` for mor
.. data:: ACME_PREFERRED_ISSUER
:noindex:
This is an optional parameter to indicate the preferred chain to retrieve from ACME.
This is applicable to Let's Encrypts recent `migration https://letsencrypt.org/certificates/`_ to their own root where they provide two distinct certificate chains;
the main chain will be the long chain that is rooted in the expiring DTS root, whereas the alternative chain is rooted in X1 root CA.
This is an optional parameter to indicate the preferred chain to retrieve from ACME when finalizing the order.
This is applicable to Let's Encrypts recent `migration https://letsencrypt.org/certificates/`_ to their
own root, where they provide two distinct certificate chains (fullchain_pem vs. alternative_fullchains_pem);
the main chain will be the long chain that is rooted in the expiring DTS root, whereas the alternative chain
is rooted in X1 root CA.
Select "X1" to get the shorter chain (currently alternative), leave blank or "DST Root CA X3" for the longer chain.