In this blog post, we’ll look at how ProxySQL improves MySQL SSL connection performance. When deploying MySQL with SSL, the main concern is that the initial handshake causes significant overhead if you are not using connection pools (i.e., mysqlnd-mux with PHP, mysql.connector.pooling in Python, etc.). Closing and making new connections over and over can greatly impact […]
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Join Percona’s Chief Evangelist, Colin Charles as he presents Securing Your MySQL/MariaDB Data on Tuesday, July 11, 2017 at 7:00 am PDT / 10:00 am EDT (UTC-7). Register Now This webinar will discuss the features of MySQL/MariaDB that when enabled and used improve the default usage of MySQL. Many cloud-based applications fail to: Use appropriate filesystem […]
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This blog post looks at SSL connections and how they work in MySQL 5.7. Recently I was working on an SSL implementation with MySQL 5.7, and I made some interesting discoveries. I realized I could connect to the MySQL server without specifying the SSL keys on the client side, and the connection is still secured […]
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If you’ve tried to use SSL in Percona XtraDB Cluster and saw an error in the logs like SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small, we’ve implemented some changes in Percona XtraDB Cluster 5.6.34 and 5.7.16 that get rid of these errors. Some background dh key too small refers to the Diffie-Hellman parameters used by the SSL code that are […]
Read MoreIn this blog post, we’ll look at a feature that recently added to Percona XtraDB Cluster 5.7.16, that makes it easier to configure Percona XtraDB Cluster SSL for all related communications. It uses mode “encrypt=4”, and configures SSL for both IST/Galera communications and SST communications using the same SSL files. “encrypt=4” is a new encryption […]
Read MoreIn this blog post, we’ll look at enabling Percona XtraDB Cluster SST Traffic Encryption, and some of the changes to the SSL-based encryption of SST traffic in Percona XtraDB Cluster 5.7.16. Some background Percona XtraDB Cluster versions prior to 5.7 support encryption methods 0, 1, 2 and 3: encrypt = 0 : (default) No encryption encrypt […]
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Using Vault with MySQL In my previous post I discussed using GPG to secure your database credentials. This relies on a local copy of your MySQL client config, but what if you want to keep the credentials stored safely along with other super secret information? Sure, GPG could still be used, but there must be […]
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In this blog post, we’ll discuss how we can determine if a MySQL connection is using SSL. Since MySQL 5.7.5 the server generates SSL certificates (see auto_generate_certs) by default if compiled with SSL, or uses mysql_ssl_rsa_setup if compiled with YaSSL. But how can we check to see if our MySQL client connection uses SSL ? When using an […]
Read MoreWe have recently become a member of oCERT to aid in allowing responsible disclosure for Percona products and services as can be seen on their members page. We are presently working on the verbiage for the responsible disclosure program, and we are also investigating establishing a bug bounty program. In the mean time you can […]
Read MoreThe CVE-2015-0204 FREAK SSL vulnerability abuses intentionally weak “EXPORT” ciphers which could be used to perform a transparent Man In The Middle attack. (We seem to be continually bombarded with not only SSL vulnerabilities but the need to name vulnerabilities with increasing odd names.) Is your server vulnerable? This can be tested using the following GIST […]
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