Configuring the communication protocol in Group Replication

In a previous blog post we presented the message fragmentation functionality that you can use starting with MySQL Group Replication 8.0.16. No group member can have a version < 8.0.16 if you wish to use message fragmentation in a group. MySQL 8.0.16 also ships with a new Group Replication concept Continue Reading

Group Replication – Consistent Reads Deep Dive

On previous posts about Group Replication consistency we: introduced consistency levels; explained how to configure the primary failover consistency; presented how to configure transaction consistency levels to achieve the consistency required by your applications. In blog 3. we presented the consistency levels: EVENTUAL, BEFORE, AFTER and BEFORE_AND_AFTER; their scopes: SESSION, Continue Reading

BlueBorne: Technical Insight

(BlueBorne background: read our previous post from Aamir Lakhani here) I have watched the BlueBorne demos and read the technical paper – it was tough! I am amazed at how the researchers managed to exploit several vulnerabilities to turn them into a PoC attack. My comments below. BlueBorne does not “spread” (as such) BlueBorne affects devices Continue Reading

WordPress 4.8.2 Security and Maintenance Release

WordPress 4.8.2 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately. WordPress versions 4.8.1 and earlier are affected by these security issues: $wpdb->prepare() can create unexpected and unsafe queries leading to potential SQL injection (SQLi). WordPress core is Continue Reading

WordPress 4.7.5 Security and Maintenance Release

WordPress 4.7.5 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately. WordPress versions 4.7.4 and earlier are affected by six security issues: Insufficient redirect validation in the HTTP class. Reported by Ronni Skansing. Improper handling of post meta Continue Reading

WordPress 4.7.3 Security and Maintenance Release

WordPress 4.7.3 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately. WordPress versions 4.7.2 and earlier are affected by six security issues: Cross-site scripting (XSS) via media file metadata.  Reported by Chris Andrè Dale, Yorick Koster, and Simon P. Briggs. Continue Reading

WordPress 4.7.2 Security Release

WordPress 4.7.2 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately. WordPress versions 4.7.1 and earlier are affected by three security issues: The user interface for assigning taxonomy terms in Press This is shown to users who do Continue Reading

Develop Plesk Extensions Series: Create extension stub and IDE project

In the previous part (Install a local version of Plesk), I showed you how to install Plesk locally in a virtual machine. In this part we will create an extension stub with the help of the command line and add this extension into your favorite IDE (Integrated Development Environment), like Continue Reading

Zooming-in on Group Replication performance

A previous blog post exposed the main factors affecting Group Replication performance, which was followed by another that showed the scalability of both single-master and multi-master throughput. In this post we return with more “inside information” that may be useful for optimizing the performance of Group Replication deployments. 1. End-to-end Continue Reading

WordPress 4.6.1 Security and Maintenance Release

WordPress 4.6.1 is now available. This is a security release for all previous versions and we strongly encourage you to update your sites immediately. WordPress versions 4.6 and earlier are affected by two security issues: a cross-site scripting vulnerability via image filename, reported by SumOfPwn researcher Cengiz Han Sahin; and Continue Reading

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