OpenSSL: Error "Self-signed certificate in certificate chain"

Lunar Mushrooms:

When I use the openssl API to verify the server certificate (self-signed), I get the following error:

Error 1 Deep Look 19: Self-signed certificate in certificate chain

According to the openssl documentation , this error (19) is

"X509_V_ERR_SELED_CERT_IN_CHAIN: Self-signed certificate in certificate chain - Untrusted certificate can be used to build certificate chain, but root cannot be found locally."

Why am I getting this error? Is there any problem with my server certificate?

Eitan T：

You have a self-signed certificate, so it's untrusted by default , which is why OpenSSL is complaining. The warning is actually a good thing, as this can also rise due to man-in-the -middle attacks .

To fix this, you need to install it as a trusted server. If it was signed by an untrusted CA, that CA's certificate must also be installed.

Take a look at the link on installing a self-signed certificate .

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