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I know how to check whether SSL is used to connect to MySQL, from command line. Just enter "status" and look at the line which starts with "SSL". But how do I check it in C# on a MySqlConnection?

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    Have you tried to query [5.1.5 Server System Variables :: ssl_cipher](https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_ssl_cipher) since your connection?. – wchiquito Aug 04 '17 at 09:20
  • I realized that checking ssl_cipher does not solve the problem, because when I connect using command line, then enter "status", the line starting with "SSL" indicates it is SSL connection, but the ssl_cipher system variable is null. –  Aug 07 '17 at 23:44
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    Try [25.11.14 Performance Schema Status Variable Tables](https://dev.mysql.com/doc/refman/5.7/en/performance-schema-status-variable-tables.html). `mysql> SELECT \`VARIABLE_VALUE\` FROM \`performance_schema\`.\`session_status\` WHERE \`VARIABLE_NAME\` = 'Ssl_cipher';`. – wchiquito Aug 08 '17 at 10:09

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