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Subject [Bug 62031] New: document better ocsp stapling values
Date Mon, 22 Jan 2018 15:23:31 GMT

            Bug ID: 62031
           Summary: document better ocsp stapling values
           Product: Apache httpd-2
           Version: 2.5-HEAD
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Documentation
  Target Milestone: ---

does not mention how to improve the ocsp stapling settings for better
scalability. I suggest the following settings:

# we don't want to send out errors of the OCSP server to the clients:
SSLStaplingReturnResponderErrors off

# the default wait time of 10s is a bit too long, shorten it to 4s, which is
still a lot: 
SSLStaplingResponderTimeout 4

# high cachetime to minimize cases like in 
# there is really no need to refresh the OCSP response more often than every 48
hours. We'll risk bad replies from servers if we query them every hour. And
that really causes trouble quite often then: 
SSLStaplingStandardCacheTimeout 172800

# and in case of ocsp server errors, retry fast after 60s and not keep the bad
response for at least 600s:
SSLStaplingErrorCacheTimeout 60

The default values of those parameters cause so many server errors that it's
not advisable to enable OCSP stapling without modifying them as pointed out

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