How to configure Citrix ADC / NetScaler to forward client Source IP to Exchange Server 2019 / 2016 or any IIS application. Those who have worked with load balancers for applications will know that it can be a pain to troubleshoot issue where the source IP address is required because from the application’s perspective, all incoming connections have the originating IP address as the load balancer.
With Citrix ADC / NetScalers, there are several methods in achieving this such as using the X-Forwarded-For header to include the source client IP address (this only works with HTTP and SSL services) or configuring direct server return (DSR) mode to allow the server to respond to clients directly by using a return path that does not flow through the Citrix ADC appliance. There are advantages and disadvantages for each method but for the purpose of this post, I will demonstrate how to configure Exchange Server 2019 (or any IIS application) to receive the source client IP with the X-Forwarded-For header. Use X-Forwarded-For header for real Client IP Address on WebServer. Author: Remko Weijnen 10Feb Recently I switched over my blog from a hoster to a self hosted VM.
In my setup I am using Citrix NetScaler as a reverse proxy. Simular to when you’re using a 3rd party reverse proxy such as CloudFlare you will see the IP address from the reverse proxy instead of the actual Client IP Address on your webserver. This means that your logging will all show the same, internal, IP address and that IP Based Access Rules will not work. Netscaler and Wireshark make an excellent combination. Supercharge your Wireshark!
Troubleshooting many of the issues that occur in TCP networks can be rather challenging if you don’t leverage the correct tools. Fortunately the wise folk at Citrix have integrated excellent tracing capabilities into the NetScaler appliance. This tutorial is not specifically focused on how to use the NetScaler tracing tool, but instead it’s focused on how to empower your default Wireshark configuration with simple customizations to help you diagnose a variety of TCP-related issues much more efficiently. That being said, here are a few CTX articles that will provide you guidance in taking a NetScaler trace: NetScaler 11 Certificates – Carl Stalhood. Navigation 💡 = Recently Updated.
NetScaler 10.5 Certificates – Carl Stalhood. NetScaler GUI is not Accessible through HTTPS. How to Upgrade NetScaler SDX Appliance from 10.5/11.x to 12.0 Version. If you are already running 11.x or 10.5 Build 57.x or later, then please jump to STEP 7, as STEP 1 to STEP 6 are only valid for versions up to 10.5 Build 56.x.
STEP 1: Make sure that your SVM (Management Service) version is 10.5 Build 57.x or later. You can download it from downloads.citrix.com. Downloaded file will be of format build-svm-10.5-6x.xx.tgz Download Link: this article, we would be using SVM 10.5 Build 67.10 as an example. Please see the screenshots below to find out the download location/naming of the file: STEP 2: Upload the downloaded file to the SDX under Management Service-->Software Images STEP 3: Click on System-->Under System Administration-->Upgrade Management ServiceNOTE: In the screenshot below, you can also see "Upgrade Appliance" option.
NetScaler HA Pair Firmware Upgrade via Command Shell. Upgrade a high availability pair. One of the requirements of Citrix NetScaler appliances in a high availability setup is to install the same Citrix NetScaler software release on both appliances of the setup.
Therefore, when software on one appliance is upgraded, ensure that the software is upgraded on both the appliances. You can follow the same procedure to upgrade a standalone appliance or each appliance in a high availability pair, although additional considerations apply to upgrading a high availability pair. Before you start a Citrix NetScaler firmware upgrade on an HA pair, read the prerequisites mentioned in the Before you begin section. Also, you need to consider a few HA-specific points. Points to note First upgrade the secondary node, and then the primary node. Figure. Upgrade a high availability pair. One of the requirements of Citrix ADC appliances in a high availability setup is to install the same Citrix ADC software release on both appliances of the setup.
Therefore, when software on one appliance is upgraded, ensure that the software is upgraded on both the appliances. You can follow the same procedure to upgrade a standalone appliance or each appliance in a high availability pair, although additional considerations apply to upgrading a high availability pair. Before you start a Citrix ADC firmware upgrade on an HA pair, read the prerequisites mentioned in the Before you begin section. Also, you need to consider a few HA-specific points. How to Export Certificates Used on NetScaler as PFX File. How Do I Configure Health Check Monitors on NetScaler? How to Create SSL_TCP Secure LDAP Virtual Server for NetScaler and Access Gateway Enterprise Edition Appliance. Citrix NetScaler VPX: CSR Creation & SSL Certificate Install.
Use these instructions to create your CSR (certificate signing request) and then, to install your SSL and intermediate certificates.
If you are looking for a simpler way to create CSRs and install and manage your SSL Certificates, we recommend that you use the DigiCert® Certificate Utility for Windows. Citrix NetScaler VPX: CSR Creation & SSL Certificate Install. Citrix NetScaler VPX: CSR Creation & SSL Certificate Install. Use these instructions to create your CSR (certificate signing request) and then, to install your SSL and intermediate certificates.
If you are looking for a simpler way to create CSRs and install and manage your SSL Certificates, we recommend that you use the DigiCert® Certificate Utility for Windows. If you have a Microsoft server or workstation, you can use the DigiCert® Certificate Utility for Windows to generate your CSR and more. See NetScaler: Create CSR & Install SSL Certificate (DigiCert Utility). These instructions were created using Citrix NetScaler 10.1 VPX (50). Depending on which version of Citrix NetScaler VPX you are using, you may need to modify these instructions accordingly. These instructions may be applicable to the following versions of Citrix NetScaler VPX (10, 50, 200, 1000, and 3000):
How do I setup secure access to NetScaler Management GUI? How do I setup secure access to NetScaler Management GUI? How to Generate and Install a Public SSL Certificate on a NetScaler Appliance. Updating or Replacing an SSL Certificate on NetScaler. When updating or replacing an SSL certificate on a virtual server or service you do not have to unbind the original Secure Socket Layer (SSL) certificate before binding a new SSL certificate.
WARNING! When you update an SSL certificate, it minimizes the time the virtual servers are not available compared to the time that is taken to manually unbind an SSL certificate, delete the SSL certificate, add a new SSL certificate, and bind the new SSL certificate. Even though the SSL virtual server is not available for some time, any connections established to the virtual server are disconnected when the SSL certificate is updated. The disconnected connections must be reconnected by the end user. The disconnected connections can be reconnected automatically depending on the client software used. To update a certificate from the GUI of the appliance, complete the following procedure: For NetScaler navigation panel expand Traffic Management and click SSL node.
Additional Resources. Updating or Replacing an SSL Certificate on NetScaler. How to Convert PFX Certificate to PEM Format for Use with NetScaler. How to Convert PFX Certificate to PEM Format for Use with NetScaler. How to Upgrade Software on NetScaler Appliances in High Availability Setup. Netscaler (in HA) Command line Upgrade or Downgrade Procedure. Follow these 9 steps to perform a Command Line Upgrade or Downgrade of your NetScaler HA config. 1. Uploading your build Download the required NetScaler build from the download section of the MyCitrix site to your computer.
Citrix Netscaler Software upgrade to the latest version. Citrix NetScaler provides a complete web application load balancing, acceleration, security and offload feature set in a simple virtual appliance or a physical device. Let’s see how to upgrade it to the latest version. The following procedure took place on a virtual appliance. Goto Citrix website and click the downloads menu. Select Netscaler ADC as a product, Firmware type and press the Find button.
How to Upgrade Software on NetScaler Appliances in High Availability Setup.