Archive | Linux

3rd DDoS attack today underway, beginning of a new era

4th Update: 20 min video response by Dale Drew, the chief security officer of Internet backbone company Level 3. 3rd Update: More details emerging “that some of the infrastructure responsible for the distributed denial-of-service (DDoS) attacks against Dyn DNS were botnets compromised by Mirai malware.” says Flashpoint. I’ll continue to update with additional information and important links. 2nd Update: 3rd Attack […]

Set PHP realpath_cache_size ‘correctly’

Over the last few months I’ve started enabling PHP realpath_cache_size and realpath_cache_ttl for the performance benefits. At the time I followed the settings I found here. It bugged me that I was blindly setting the size of the cache without actually know what and how much storage was being used. In this post I will show you […]

Best WordPress Cache Plugin: Cachify

This blog post was originally posted just over 2 years ago. WordPress Cache plugin options have changed a lot since then. As such, I’m updating this list of 5 best WordPress plugins. Three of the five listed have been replaced! Are you already using a Wordpress Cache Plugin? I’ve tried many WordPress caching plugins over the years and after much testing, I’m able […]

50 Top Server Monitoring & Application Performance Monitoring (APM) Solutions

Back in 2014, I compiled a list of the top 20 server performance monitoring solutions. Largely because I already had a list saved locally for my own reference. Posting that list publicly was a great way to gain feedback and recommendations on other tools available. In fact, most of the companies listed below were not included in my initial top 20 list. […]

Tuning MySQL: my.cnf, avoid this common pitfall!

Caution: Don’t overwrite your entire my.cnf at once when tuning MySQL. One or two changes per restart, benchmark, then continue. Take backups first and be careful! It took me some time to decide the title for this article. MariaDB has been fast replacing MySQL as a growing number of Linux distributions now default to MariaDB over MySQL. In […]

APM Showdown: Which APM tool is right for you?

Guest post by Anand Akela, Director of Product Marketing, AppDynamics. In an ever-increasing digital world, IT Operations teams are struggling to monitor their application landscapes and third-party dependencies. A major key in their toolbelts is an application performance monitoring (APM) solution, which can provide business and user context and correlation to their application performance. Choosing the […]

WordPress Plugin being exploited. Delete inactive plugins

For the past few days an increasing number of WordPress websites have been infected by attackers exploiting a vulnerability in the WordPress plugin: WP Mobile Detector. The plugin with over 10,000 active installs was at one point removed completely from the WordPress repository with no patch available. However, as of today the WP Mobile Detector plugin has been patched […]