Blog posts tagged with 'googlejuice'


06 May 2008 04:33 PM EDT
[ Tags: appexpert,  apptips,  tips,  netscaler,  pe,  policy,  expressions,  lb,  llb,  slb,  citrix load balancer,  citrix load balancing,  link load balancer,  link load balancing,  load balancer,  load balancing,  server load balancer,  server load balancing,  security load balancer,  security load balancing,  hardware load balancer,  hardware load balancing,  next gen load balancing,  website load balancer,  website load balancing,  application load balancer,  application load balancing,  application switch,  clustering,  web application controller,  application controller,  application delivery,  f5,  array,  zeus,  radware,  cisco,  microsoft,  asp,  iis,  ias,  foundry,  extreme,  sap,  oracle,  siebel,  peoplesoft,  bea,  googlejuice,  cache,  caching,  appcache,  compress,  compression,  appcompress,  controller ]

Policies are used to configure various Citrix NetScaler Application Switch features. For example, the parameters for compressing content are defined in a compression policy.

The features that use policies are:

  • Load Balancing
  • Content Switching
  • Content Filtering
  • AppCompress
  • Cache Redirection
  • SSL VPN
  • Priority Queuing
  • DoS Protection
  • Sure Connect

Policy expressions are applied to content that enters the switch. Expressions are shared among features, but actions are feature-specific. For example, you can create an expression to identify .pdf files being sent through the system. You can then create a compression policy that uses this expression to compress those files. The Policy Engine (PE) refers to the architecture in the Citrix NetScaler Application Switch for versions up to 8.x. The architecture for Policy Engine and the manner in which it operates is presented in this Deployment Guide.  Did you know that each feature in the Citrix NetScaler Application Switch is processed in a certain order, and the Policy Engine (PE) applies policy according to that order.  That order is represented in this diagram and discussed in the Deployment Guide for Policy Engine (PE).

Watch this Policy Engine Tip:

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06 May 2008 12:08 PM EDT
[ Tags: apptips,  tips,  appexpert,  caching,  compression,  ssl offload,  load balancing,  content switching,  gslb,  global server load balancing,  ssl acceleration,  tcp multiplexing,  mpx,  netscaler,  acceleration,  delivery,  content,  rewrite,  expertexchange,  lb,  llb,  slb,  citrix load balancer,  citrix load balancing,  link load balancer,  link load balancing,  load balancer,  server load balancer,  server load balancing,  security load balancer,  security load balancing,  hardware load balancer,  hardware load balancing,  next gen load balancing,  website load balancer,  website load balancing,  application load balancer,  application load balancing,  application switch,  clustering,  web application controller,  application controller,  application delivery,  ssl multiplexing,  wan load balancing,  content rewrite,  client-ip,  x-forwarded-for,  apache,  iis,  external url,  internal url,  home page redirect,  apache rewrite,  server obfuscation,  application obfuscation,  http header,  policies,  policy,  policy engine,  pe,  cache,  appcache,  compress,  appcompress,  controller,  content switch,  content acceleration,  content accelerator,  application acceleration,  application accelerator,  tcp acceleration,  f5,  array,  zeus,  radware,  cisco,  microsoft,  asp,  ias,  foundry,  extreme,  sap,  oracle,  siebel,  peoplesoft,  bea,  googlejuice ]

As web applications grow in complexity, the art of accelerating them seems to remain the same. This art is performed by applying some basic concepts to the application; that is, Caching, Compression, Load Balancing, Global Server Load Balancing, SSL Offload & Acceleration, Content Switching, TCP Multiplexing and SSL Session Reuse.

Citrix® is a leader in Gartners magic quadrant for Application Delivery with their flagship appliance NetScaler®. NetScaler accelerates web application performance by leveraging multiple acceleration technologies and innovative TCP optimizations.

Whether you are building out a new datacenter and architecting it the right way, or retrofitting an existing datacenter, Citrix NetScaler will perform and keep costs down. Whether you are looking to accelerate legacy enterprise applications such as Oracle or SAP, or building a new web 2.0 social community, Citrix NetScaler contains all of the tools to get you there.

Citrix NetScaler web application delivery solutions are purpose built appliances that accelerate application performance, while simultaneously reducing datacenter costs and improving web application security. Platforms range from the entry level 7000 to the latest MPX-series appliances that provide an industry-leading 15 Gbs of throughput at Layers 4 through 7.

There's more here: Case Studies, White Papers, Analysts , Datasheets

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Buy it here!

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29 Apr 2008 08:17 PM EDT
[ Tags: caching,  appexpert,  apptips,  tips,  netscaler,  expertexchange,  mpx,  cache,  appcache,  lb,  llb,  slb,  gslb,  citrix load balancer,  citrix load balancing,  link load balancer,  link load balancing,  load balancer,  load balancing,  server load balancer,  server load balancing,  security load balancer,  security load balancing,  hardware load balancer,  hardware load balancing,  next gen load balancing,  website load balancer,  website load balancing,  application load balancer,  application load balancing,  application switch,  clustering,  web application controller,  application controller,  application delivery,  tcp multiplexing,  ssl offload,  ssl multiplexing,  global server load balancing,  wan load balancing,  rewrite,  content rewrite,  client-ip,  x-forwarded-for,  apache,  iis,  external url,  internal url,  home page redirect,  apache rewrite,  server obfuscation,  application obfuscation,  http header,  policies,  policy,  policy engine,  pe,  compress,  compression,  appcompress,  controller,  content switching,  content switch,  acceleration,  content acceleration,  content accelerator,  application acceleration,  application accelerator,  tcp acceleration,  ssl acceleration,  f5,  array,  zeus,  radware,  cisco,  microsoft,  asp,  ias,  foundry,  extreme,  sap,  oracle,  siebel,  peoplesoft,  bea,  googlejuice ]
posted by Craig Ellrod

Becoming an Application Expert means that you can profile an application and quickly determine how it can be architected or re-constructed for higher performance. Of course, we want you to use the Citrix Application Switch as part of the architecture. In Part 1, we learned how to profile an application to learn what it looks like as the traffic flows through the Citrix Application Switch. Now we will determine what parts of an application are cacheable and what parts are non-cacheable.

By Application Profiling we can determine which parts of the application are cacheable and non-cacheable just by looking at the Request and Response headers. The application will sometimes tell you through it's "Cache-Control" header directives. Some content that we just know is static and doesn't ever change, we can consider cacheable as static content. Content that changes, such as reports, are often considered non-cacheable but with the help of Selectors and Dynamic Content Groups in the Citrix NetScaler, this content can be cached. As a proof of concept, we deployed the Citrix NetScaler Application Switch in the front of Oracle E-Business Suite v12 application and implemented caching policies for both static and dynamic content. As it turns out, alot of static content is cached by default policies and setting up dynamic policies is not that difficult. To see how, read the Caching Deployment Guide for Oracle E-Business Suite v12.

Watch this Caching Tip:

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