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What alternative validation solutions are available if ports cannot be opened when applying for an SSL certificate for a public IP?

When port access is restricted, you can complete the SSL certificate request through the following two solutions:

Solution 1: Switch to applying for an intranet SSL certificate, for example: CFCA, sslTrus;​

Note

CFCA no longer supports file validation on arbitrary ports; only port 80 or 443 can be used.

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