The SSL certificate installed on 1. website has expired or is invalid. When this problem exists, the certificate cannot be installed.
To solve this kind of problem, the first thing to do is to check the validity of the SSL certificate of the website. If the certificate expires, you need to contact the SSL certificate provider to renew the certificate. When it is found that the certificate is still valid, it is necessary to check whether the date setting of the local computer is correct. If it is wrong, it can be modified to be correct.
2. Tip to visit the website: This page contains unsafe content. For example, when accessing a page, you need to access it through https, but the pictures, js scripts and flash in other pages must be called through http, otherwise the above prompt will appear.
The easiest way to solve this problem is to change the calling http mode to https.
3. The SSL certificate issued by this website is not issued by a trusted certificate authority. The reason may be that SSL certificates are not issued through formal global trust CA; Or certificate security error.
On this issue, the first choice is to replace the certificates issued by trusted CA institutions, such as Symantec, GeoTrust, Comodo, Rapid, etc. If it is the latter reason, you need to check whether the original test certificate has been deleted. If the certificate used by the website is correct, please restart the network server.
4. I received the error message "No shared cipher". This error is usually due to the use of the anonymous Diffie-Hellman(ADH) algorithm, but the ADH algorithm is not enabled.
At that time, when compiling OpenSSL, you only need to use the "-DSSL _ Allow _ADH" configuration option and add "ADH" to the SSLCipherSuite instruction.