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Questions tagged [netscaler]

NetScaler is an application delivery controller (ADC) and load balancing solution developed, sold and supported by Citrix. NetScaler operates in a similar market as F5 and other leading load balancer/ADC solutions and comes in both physical hardware (MPX/SDX) and virtualized forms (VPX/SDX). NetScaler operates at OSI Layer 4-7 in general, though it does have some Layer 2/3 functionality.

As well as the traditional load balancing role, NetScaler also provides content switching, HTTP rewrites/manipulation, data compression, content caching, hardware based SSL acceleration (not VPX), application flow visibility and an application firewall.

The underlying OS of a NetScaler is FreeBSD based (6.3 currently) with a completely customized kernel, TCP/IP stack etc. running on commodity Intel x86 hardware. SSL acceleration is provided by cards (usually Cavium based).

Virtualized versions of NetScaler can be run on the SDX platform to take advantage of SSL acceleration, otherwise it is simply done in software. The official site can be found here:

http://www.citrix.com/netscaler

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Figuring out the reason for a "Connection timed out" error

For the last 24 hours two independent servers are having a hard time connecting to our web server. They are trying to open a port 80 connection. They are both receiving "connection timed out" errors. These servers are in two different countries. I'm…
Haluk
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How to get a secure HTTP monitor in NetScaler to send SNI in its request?

We have a content switch in front of a virtual server in NetScaler ADC, and it acts as a load balancer. It is tied to a service group that has an HTTP monitor. We cannot get this monitor to work. The monitor calls an HTTPS endpoint. The endpoint…
Martin Ørding-Thomsen
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unable to download backup file on ADC SDX via GUI or API call

While trying to download the backup file via API or GUI using the nsroot account which has the owner group, I get the bellow error: {"Not Authorized to perform this operation"} Have checked the settings for the account and policies and all seems…
user15405611
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Unable to connect web server VM from my netscaler VM

I have created a lab to learn VPX ADC and my lab environment as per below. All the below 3 machines are connected via VMWare Workstation Bridged Network. Host - Windows 10, IP Address is 192.168.2.123, Firewall & Antivirus. VM 1 - Windows 2016, IP…
Nikhil Tamhankar
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Where to securely deploy Citrix Netscaler?

We are currently using Citrix Netscaler to provide users with Virtual Desktops. Netscaler is located in DMZ and has access from whole internet. Unfortunately Netscaler has access to LDAP (to authenticate users) and Citrix Desktop Servers (for…
user54507
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Implementing Health Check for Websites Hosted Behind a Shared LB

we host 4 web servers behind a shared load balancer. We don't have control over this Citrix NetScaler load balancer. We submit tickets to make changes as needed. Recently, one of the web servers started to have issues like slow backend response…
Ismet D.
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How to get email alerts when a monitor goes down on NetScaler?

How to get email alerts when a monitor goes down on NetScaler? I am looking for a way to get email notifications when different things go wild with backend services served by a NS instance. NS already has complex monitors so is there a way to use…
sorin
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