MySQL · December 20, 2023

How to Fix MySQL Error 2012 - (CR_SERVER_HANDSHAKE_ERR) How to Fix MySQL Error in server handshake

How to Fix MySQL Error 2012 - (CR_SERVER_HANDSHAKE_ERR) How to Fix MySQL Error in server handshake

MySQL is a popular open-source relational database management system used by many websites and applications. However, like any software, it can encounter errors that can disrupt its normal operation. One such error is the MySQL Error 2012, also known as CR_SERVER_HANDSHAKE_ERR. In this article, we will explore what this error means and how to fix it.

Understanding MySQL Error 2012 - CR_SERVER_HANDSHAKE_ERR

MySQL Error 2012, or CR_SERVER_HANDSHAKE_ERR, occurs when there is a problem during the handshake process between the MySQL client and server. The handshake process is an essential step in establishing a secure connection between the client and server. If this process fails, the error is triggered.

There can be several reasons for this error, including:

  • Incorrect MySQL server configuration
  • Incompatible SSL/TLS versions between the client and server
  • Firewall or network issues

Fixing MySQL Error 2012

Here are some steps you can take to fix MySQL Error 2012:

1. Check MySQL Server Configuration

Ensure that the MySQL server is properly configured with the correct settings. Check the MySQL configuration file (usually my.cnf or my.ini) for any errors or misconfigurations. Pay attention to parameters related to SSL/TLS settings, such as ssl-cert, ssl-key, and ssl-ca.

2. Verify SSL/TLS Compatibility

Check if the SSL/TLS versions used by the MySQL client and server are compatible. If they are not, you may need to update the SSL/TLS settings on either the client or server side to ensure compatibility. Make sure to use secure and up-to-date SSL/TLS versions.

3. Check Firewall and Network Settings

Firewalls or network settings can sometimes interfere with the handshake process. Ensure that the necessary ports (usually 3306 for MySQL) are open and accessible. If you are using a firewall, configure it to allow incoming and outgoing connections for MySQL.

4. Update MySQL Client and Server

If you are using an older version of MySQL, consider updating both the client and server to the latest stable release. Newer versions often include bug fixes and improvements that can resolve handshake-related issues.

5. Restart MySQL Server

Restarting the MySQL server can sometimes resolve temporary handshake errors. Use the appropriate command to restart the MySQL server, such as "service mysql restart" or "systemctl restart mysql".

6. Seek Professional Assistance

If you have followed the above steps and are still experiencing MySQL Error 2012, it may be beneficial to seek assistance from a professional. They can analyze your specific setup and provide tailored solutions to resolve the error.

Summary

MySQL Error 2012, or CR_SERVER_HANDSHAKE_ERR, can occur during the handshake process between the MySQL client and server. To fix this error, you should check the MySQL server configuration, verify SSL/TLS compatibility, review firewall and network settings, update MySQL client and server, restart the MySQL server, and seek professional assistance if needed.

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