How to reload Certificate Revocation List (CRL) in nginx?

bmihelac asked:

I have set CRL file in nginx with ssl_crl directive:

ssl_crl /mypath/crl.pem

However, I noticed that adding or removing revoked certificates from crl.pem apply only when I restart or reload nginx server.

What is best practice for this? Reloading nginx configuration when crl.pem changes or something else?

My answer:


Just reload nginx when you make any changes to the file. This will cause it to re-read the files without interrupting any existing connections or needing to restart. For example (RHEL/CentOS):

service nginx reload

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