As a business owner you need to protect your website against all known attack vectors. Hackers, on the other hand, need just one opportunity to compromise a whole server. There are hundreds of thousands of vulnerabilities that can lead to a compromise. The risk exposure is so significant it is not a matter of if but when the irreparable happens. With the no-hack guarantee, you are being offered protection from hacks and attacks with a UNIXY-backed guarantee. Not only are we locking down your Website better than anyone in the market but we are also putting money where our mouth is. Read more

Two new features have been released in RC8 of the UNIXy Varnish Cache Plugin.

Notably Slashdot survival which helps a server cope with a high traffic spike against an article or page. Registering a page or URL with in the Slashdot table forces Varnish to cache the page for all visitors. It essentially strips out the page of all cookies and keeps a copy of this page in memory.

The other feature is the inclusion of the Modsecurity security in Varnish VCL. This feature is disabled by default but with one click it can be enabled. The security rules protect against SQL injection, XSS, trojans, malformed requests, malicious attempts, and much much more!

http://www.unixy.net/varnish

Enjoy

It’s clear that Varnish and high-traffic portals like Twitter and Facebook go hand in hand. A write up on highscalability.com notes that Tumblr is using 15 Varnish servers as part of its server fleet. Besides proxying, they’re being used to serve up public blogs.  We (UNIXy) have found that using Varnish can not only help high traffic portals scale out but can also cut down on their server footprint (and bills). In fact, we so believe this is possible we can slash your server hosting bills by at least 30% !

Check us out and don’t hesitate to request a free consulting call or chat: http://www.unixy.net/contact-unixy

 

rc7 is out! We’ve upgraded to Varnish 3.0.2, fixed bugs, and made improvements to make your cPanel WHM server run even more faster than litespeed! Head out to the varnish download page: http://www.unixy.net/varnish

In brief:

  • Upgrade Varnish to 3.0.2
  • Increase httpd hdr len for req/resp
  • Increase session WS
  • Add Varnish monitoring crontab job

rc8 will see two neat features. The first will is a Slashdot Survive URL opt-in list where if you were to receive enormous traffic, Varnish can shield your server by responding directly to those requests (completely bypassing Apache or any server-side processing). So serving a slashdot-like audience will require a small fixed amount of memory as opposed to an unpredictable amount of resources (and most likely a server crash). The second feature will deal with aggressive bots. This addition creates a shared memory store for bots so they sources pages from the same store and prevent server crashes due to aggressive bots.

There’s more in 1.4.5rc8 so stay tuned!

Enjoy!

Before I delve into the meat of this post, Internet access is critical to what we (UNIXy) do. We are a fully managed server and cluster provider. The quality of service we offer is critical to our success. So it’s only natural we concert a continuous effort to improve the service on all fronts. Being fully staffed and accessible to our clients 24/7 is imperative. We must be available within short notice (e.g. < 10 minutes) at all times around the clock.

So Internet at 10000 feet means we don’t have to deal with temporary staffing shortages due to unplanned trips. But most importantly it means service quality remains consistent. Internet at 10k is even more important as we expand to different parts of the country and Europe. But in such a rough, high altitude environment there are so many things that can go wrong with the Wifi service. And it has. Southwest Airlines’ Wifi service is too unreliable to consider.

I’ll ask the pilot to reboot the system to see if it helps

On the other hand, Virgin America’s Wifi system powered by Gogo  LLC is very reliable. So this is the airline we’ve been booking with lately. While domestic flights have us covered, transatlantic connectivity has yet to materialize. 30000 feet is the new frontier. I’m confident that some day we’ll be back here reporting about how good it is to support our clients at 30k feet.

Cheers

 

Litespeed users on cPanel WHM servers are realizing the benefits of running Varnish Cache in front of Litespeed to improve performance. While we (UNIXy) don’t officially provide support to subscribers running the cPanel Varnish Plugin with Litespeed, it does work with only a few extra manual steps. Keep in mind that we support this configuration for our fully managed VPS, dedicated server, and cluster clients free of charge. If you are a current client and need this configured, please open a ticket request. We’ll be happy to assist with this task.

In this post, I’m going to list the steps required to pair the cPanel Varnish Plugin with Litespeed on cPanel WHM servers. These few procedures apply to a blank cPanel installation (no Litespeed, no Varnish Plugin). The order below is important so don’t skip!

  • 1. Configure your Apache / PHP with the desired options and extentions. Let EasyApache finish the build.
  • 2. Install Litespeed using the command line installer with the port offset at 2000 (default).
  • 3. From WHM -> Litespeed -> Build Matching PHP binaries. Let the Litespeed builder complete before proceeding.
  • 4. Proceed with installing the cPanel Varnish Plugin. Let it complete.
  • 5. Set the Litespeed Port offset to zero in Admin Console.
  • 6. In Admin Console, Configuration -> Server -> General Settings -> Use Client IP in header -> Yes. Restart Litespeed.

 

About UNIXY

UNIXY is a long-time Varnish Cache user and evangelist. They have been offering Varnish acceleration to their clients for more than three years. They have released the first cPanel Varnish plugin as well as spun a new startup, Fastlayer, the on-demand HTTP accelerator for the cloud.

That’s all folks! I hope you find this useful.

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