Archive for the ‘Uncategorized’ Category

DDoS Attacks Taken Offline By LiteSpeed Enterprise 5.1.13

Friday, February 17th, 2017

LiteSpeed Enterprise servers around the globe were specifically targeted today by a surge of focused DDoS attacks.

Our tech support staff was alerted to the problem and quickly worked with our customers to gain access to one of the affected servers. Within an hour we had identified the vulnerability and corrected it, releasing LiteSpeed Enterprise 5.1.13.

LiteSpeed clients deploying LiteSpeed Enterprise should upgrade to 5.1.13 as soon as possible to avoid the DoS vulnerability.

The attack focused on a heap buffer overflow bug that was only present during logging operations (after the request had completed processing). The effect was to cause the server to spin for a while then unduly terminate, causing service disruption. To the best of our knowledge, no remote code injection, no root escalation and no data was compromised.

LiteSpeed Technologies is committed to providing the highest levels of service to our clients and ensuring that their sites remain protected and available at all times.

Timeline of a DDoS Attack on LiteSpeed Servers

12:15 EST: first reports of service disruptions
12:45 EST: LiteSpeed tech support gains access to affected server
13:15 EST: LiteSpeed tech support deploys first fix build
13:40 EST: LiteSpeed tech support pushes bug fix build of 5.1.12
14:05 EST: LiteSpeed tech support releases 5.1.13


OpenLiteSpeed Does It Again:
1.4.17 Retakes the Lead In Serving Small Static Files With Its Default Configuration

Tuesday, May 3rd, 2016


Last month, we reported that we improved OpenLiteSpeed’s performance by fixing a bug we discovered thanks to a benchmark posted by Jarrod from

Since then, an Nginx developer suggested some configuration tuning to make the Nginx results better. We found that some of those configurations are not likely to be used in a production environment. Notably:

  • sendfile was turned off
  • etag header was turned off

Our internal evaluation confirmed that Nginx was indeed faster with its benchmark-tuned configuration. That said, should these kinds of configurations be used in a production server?


LiteMage 2 for Magento 2 Released!
LiteMage Goes Open Source!

Friday, April 8th, 2016


Magento 2 introduced many improvements over Magento 1.9. Magento’s built-in PageCache module is now included in both Magento 2 Community and Enterprise Editions, the checkout process has been streamlined, the code modernized, performance improved, and table locking reduced. These improvements make Magento 2 faster and more stable than it’s predecessor, but it can still be made better.

For example, you could implement a faster full page caching solution, such as Varnish. Unfortunately, this can over-complicate your stack, requiring extra components such as an NGINX reverse proxy and a Varnish Cache Instance.

Now, there’s an easier way.


Join LiteSpeed At Magento Imagine In Las Vegas, April 11-13

Tuesday, April 5th, 2016

Las Vegas

LiteSpeed will be in Las Vegas for the Magento Imagine 2016 conference on April 11-13! Come visit us!


Notes From WHD.Global

Wednesday, March 30th, 2016

Germany Plane March 2016

For LiteSpeed, WHD brought with it many things: new sights, new tastes, new faces, and new developments.


LiteMage – A Quick Look Forward

Friday, December 4th, 2015

x-litespeed-cache: hit,litemage

With many successful LiteMage deployments all yielding great results, many of our customers have been asking us: “What’s next?” This blog post will give you a quick look behind the curtain at some of our future plans for the world’s fastest full-page Magento cache.

Getting the Best WordPress Performance

Monday, August 31st, 2015

Wordpress Bechmark

In our previous PHP 7 vs HHVM benchmark, Benchmark Series 2: WordPress, we saw HHVM outperform PHP 7 by 7% on WordPress. That test was performed without any cache involvement to test pure HHVM and PHP 7 performance. But what about WordPress performance in a real world situation?

According to W3Techs’ usage report, WordPress is used by 24.3% of all the websites and holds 58.7% of the content management system market share. As the #1 content management system, we want to see how fast WordPress can be in a real world environment.