EnglishWhen you encounter an error message stating "The SSL certificate failed verification," it typically means that the SSL certificate presented by the server during a connection attempt could not be verified as valid. This can happen for several reasons, including expired or improperly configured SSL certificates, network issues, or problems with the certificate authority.
Here are steps you can take to address this issue:
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Check the Certificate Expiry:
- Verify that the SSL certificate on the server has not expired. If it has, you'll need to renew or replace it.
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Ensure the Certificate Authority is Trusted:
- Confirm that the certificate authority (CA) that issued the SSL certificate is trusted by your system. Some servers may use self-signed certificates, which may not be automatically trusted.
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Check for Chain of Trust:
- Ensure that the SSL certificate is properly configured with a valid chain of trust, including any necessary intermediate certificates. This helps establish a complete path of trust from the root certificate to the server certificate.
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Verify DNS Settings:
- Ensure that the domain name you're trying to connect to resolves to the correct IP address. Incorrect DNS settings can lead to SSL verification failures.
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Check the Server's Date and Time:
- Make sure the date and time on the server are set correctly. An incorrect system clock can lead to SSL verification failures.
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Inspect the SSL Certificate Details:
- You can use tools like
opensslto inspect the SSL certificate details:
bash - You can use tools like
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openssl s_client -connect example.com:443This command will provide detailed information about the SSL certificate, including its validity dates.
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Clear DNS Cache:
- Clear the DNS cache on your system, as cached DNS records may be causing connection issues.
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Verify Firewall and Proxy Settings:
- Ensure that there are no firewall or proxy settings blocking the connection to the server.
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Check for Man-in-the-Middle Attacks:
- Be cautious of potential man-in-the-middle attacks. If you're on a public network, consider using a Virtual Private Network (VPN) for added security.
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Contact the Server Administrator or Hosting Provider:
- If you're not the administrator of the server, consider contacting the person responsible for server maintenance or your hosting provider for assistance.
Remember, never proceed with insecure connections if you suspect a certificate validation failure, as this could expose sensitive information to potential attackers. Always ensure that SSL certificates are properly configured and trusted before proceeding with secure connections.
