uwsgi_ssl_crl
The 'uwsgi_ssl_crl' directive specifies the Certificate Revocation List (CRL) file to be used for uWSGI SSL connections in NGINX.
Description
The 'uwsgi_ssl_crl' directive is used in the context of handling uWSGI SSL connections in NGINX. By setting this directive, you can define the path to a file that contains a list of revoked certificates, which are used to validate the certificates presented by clients during SSL handshakes. This is important for enhancing security by ensuring that any certificates that are no longer valid or were revoked are not accepted by the server. The CRL is processed by the NGINX server to reject clients with revoked certificates, thus maintaining a robust SSL security posture.
This directive can be specified in the http, server, or location contexts and takes a single argument, which is the file path of the CRL. If the specified file is incorrect or cannot be read, NGINX will log an error and may not terminate connections that involve revoked certificates properly. It is crucial to ensure that the CRL file is kept up to date and accessible to the NGINX server processes to avoid security issues.
Overall, using the 'uwsgi_ssl_crl' directive provides an additional layer of security by controlling which SSL certificates are considered valid, which is crucial for applications dealing with sensitive data or requiring high levels of trust and compliance.
Config Example
server {
listen 443 ssl;
server_name example.com;
uwsgi_ssl_crl /etc/ssl/crl.pem;
location / {
uwsgi_pass unix:/tmp/uwsgi.sock;
uwsgi_ssl_certificate /etc/ssl/certs/your_cert.pem;
uwsgi_ssl_certificate_key /etc/ssl/private/your_key.pem;
}
}Ensure the CRL file is correctly formatted and accessible by NGINX; otherwise, the server may fail to verify certificates properly.
Remember to reload or restart NGINX after updating the CRL file to ensure the changes take effect.
Verify file permissions for the CRL file to avoid access errors during runtime.