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certbot_dns_linode: increase the default propagation interval (#6320)

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Using the default value of 16 minutes (960 seconds) for
--dns-linode-propagation-seconds leads to DNS failures when the randomly
selected Linode DNS is not the first one out of six, due to an additional
delay before the other five are updated.

The problem can be easily solved by increasing the wait interval, so
this commit increases the default value to 20 minutes.

More details: https://community.letsencrypt.org/t/dns-servers-used-by-letsencrypt-for-challenges/32127/16
This commit is contained in:
Ștefan Talpalaru
2018-10-17 13:48:49 -07:00
committed by sydneyli
parent 22da2447d5
commit 819f95c37d
2 changed files with 11 additions and 5 deletions
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certbot-dns-linode/certbot_dns_linode/__init__.py
+10 -4
View File
@@ -14,7 +14,11 @@ Named Arguments
DNS to propagate before asking the
ACME server to verify the DNS
record.
(Default: 960)
(Default: 1200 because Linode
updates its first DNS every 15
minutes and we allow 5 more minutes
for the update to reach the other 5
servers)
========================================== ===================================
@@ -74,13 +78,15 @@ Examples
-d www.example.com
.. code-block:: bash
:caption: To acquire a certificate for ``example.com``, waiting 60 seconds
for DNS propagation
:caption: To acquire a certificate for ``example.com``, waiting 1000 seconds
for DNS propagation (Linode updates its first DNS every 15 minutes
and we allow some extra time for the update to reach the other 5
servers)
certbot certonly \\
--dns-linode \\
--dns-linode-credentials ~/.secrets/certbot/linode.ini \\
--dns-linode-propagation-seconds 60 \\
--dns-linode-propagation-seconds 1000 \\
-d example.com
"""
certbot-dns-linode/certbot_dns_linode/dns_linode.py
+1 -1
View File
@@ -29,7 +29,7 @@ class Authenticator(dns_common.DNSAuthenticator):
@classmethod
def add_parser_arguments(cls, add): # pylint: disable=arguments-differ
super(Authenticator, cls).add_parser_arguments(add, default_propagation_seconds=960)
super(Authenticator, cls).add_parser_arguments(add, default_propagation_seconds=1200)
add('credentials', help='Linode credentials INI file.')
def more_info(self): # pylint: disable=missing-docstring,no-self-use