Citrix NetScaler 10.5

I’m currently working on a project where load balancing is required.  I’ve never had the need to load balance in my personal labs so I wanted to educate myself on the matter.  I turned towards CBTNuggets.com because they offer a “Citrix NetScaler 10.5 1Y0-253 NetScaler 10.5 Essentials and Networking” course with Keith Barker.   Once again, I highly recommend you visit CBTNuggets.com, they provide great training videos for a number of technologies. Below are my notes from the course, they’re not complete (and images removed) because i don’t want to infridge on any copyrights.

The Citrix NetScaler 10.5 for App and Desktop Solutions course provides the concepts and training to install and configure a Citrix NetScaler load balancer and gateway in a virtualization environment such as Citrix XenDesktop/XenApp 7.x. Learners are strongly encouraged to build a lab environment to practice the NetScaler techniques learned in this course. This course is based on the Citrix NetScaler 10.5 product, and the fundamental concepts taught in these Nuggets are common to earlier NetScaler versions as well.

Citrix NetScaler is a multi-functional appliance that can perform as a Layer 4-7 proxy for load balancing, as well as an SSL VPN gateway (or both). Environments that include Citrix XenApp and XenDesktop are likely to use a NetScaler as their remote access and load balancing solution.

The Citrix NetScaler (NS) is a Physical (MPX, SDX) or Virtual (VPX) multi-functoinal appliance that can perform as an ISO Layer 4-7 proxy (Web Application Delivery Controller (ADC)  for load balancing, as well as a security gateway (SSL VPN, Posture Scans, Authentication), or both. NS is a TCP/IP Proxy. Packaged as an Open Virtual Format (.ovf) file.

Virtual IP address (VIP) – Address of the Virtual Server (VS), there will be multiple VS created on the NS.

Subnet IP (SNIP) – Is a configured address that the NS uses to communicate with other servers on that subnet.  SNIP purpose is for NS to believe it is directly connected to that specific network.

NSIP – NetScaler IP is the base address of the device.

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Skype for Business 2015 Implementation

I am implementing Skype for Business 2015 in a high availability and redundant, design.  The below topology is what we’re shooting for.  To increase security on our Edge Servers we’ve decided to create two DMZ zones.  We’re also using Citrix NetScalers for load balancing and reverse proxy.  Wish me luck!