Troubleshooting NetScaler SD-WAN Link Quality

There are network and WAN connectivity issues when traffic goes through NetScaler SD-WAN...

Information to Keep Handy Before Troubleshooting NetScaler SD-WAN Issues

Expedite the troubleshooting process by having the following information hand: Topology/Flow diagram All traffic passing through NetScaler SD-WAN or not Links with variable bandwidth Bandwidth offered by ISP Bandwidth observed by using Iperf Bandwidth configured on the NetScaler SD-WAN Links Any...

Unable to Log On to NetScaler SD-WAN Using PuTTY (Password Caps Locked)

Unable to log on to NetScaler SD-WAN using PuTTY Password Caps Locked...

Understanding NetScaler SD-WAN Best Path Determination

The following points helps you in understanding NetScaler SD-WAN best path determination: Per-packet determination Variety of factors in determining packets assigned path Received packet from any WAN path calculates: One-way trip latency One-way loss One-way bandwidth One-way jitter Sent packet...

How do I configure IPsec Tunnel Between NetScaler SD-WAN and Third-Party Devices?

Enable IPsec between SD-WAN and third party appliances...

Troubleshooting Network or Link Issues on NetScaler SD-WAN

Troubleshooting NetScaler SD-WAN network or link issues...

Monitoring NetScaler SD-WAN Network/System

Complete the following steps to monitor statistics related to Network interfaces and System statistics like CPU/Memory: Under Monitoring - Appliance Reports SubSystem / Network / System You can monitor Traffic/Errors/Packet drops at Interface level Load Average Network Status Check CPU and Memory...

Error: "Execute Commands failed" When Enabling AppFlow from NetScaler MAS

Enabling AppFlow from NetScaler MAS fails with the error message: Execute Commands failed. Config logs /var/mps/log/mpsconfig.log: Wednesday, 10 Jan 18 11:55:20.075 -0500 Error 1 SSH Command Timed out on Wednesday, 10 Jan 18 11:56:20.080 -0500 Error Main SSH: Failed to connect on Wednesday, 10 Ja...

NetScaler MAS Not Receiving AppFlow/Logstream/Ipfix Data

User tries to enable Gateway insight on a VPN Gateway in NetScaler MAS. Creates a policy but when they click OK to confirm creation they get he following error: Error in retrieving appflow.vpnerrorcounts. event is not defined...

Citrix NetScaler Multiple Vulnerabilities (CTX232161)

The remote Citrix NetScaler device is affected by multiple vulnerabilities in the Application Delivery Controller ADC and the Gateway Management Interface. Please refer to advisory CTX232161 for more information. C Tenable Network Security, Inc. include"compat.inc"; if description scriptid110903;...

Citrix NetScaler Authentication Bypass Vulnerability (CTX232199)

The remote Citrix NetScaler device is affected by an authentication bypass vulnerability in the Application Delivery Controller ADC and the Gateway Management Interface that allows the execution of arbitrary, read only commands on the NetScaler appliance. Please refer to advisory CTX232199 for mo...

Unable to access NetScaler MAS 12 using LDAP authentication with the error "User not authorised for any operation"

Unable to access NetScaler MAS using LDAP authentication with the error "User not authorized for any operation"...

NetScaler Gateway Error: "The published resource is not available currently"

Error: The published resource is not available currently...

NetScaler Gateway : Radius Authentication Fails Intermittently Despite RADIUS Server Accept

NetScaler Gateway Authentication Scenario 1: Gateway Page would present the authentication to be done in 2 factor. First the user enters the LDAP username and password. Now there would be 2 options either user can do the touch authentication present in the MFA Application or else can wait for the...

Unable to Connect to StoreFront from NetScaler After Logging into NetScaler Page with Error "Http/1.1 Internal Server Error 43531"

The following error is shown after logon to NetScaler page: Error "Http/1.1 Internal Server Error 43531" The NetScaler is unable to connect or redirect to StoreFront page...

Troubleshooting NetScaler Hard Disk Issues

Hard Drive errors can come in many forms and can be resolved via other ways than an RMA. Errors include not allowing access to the NetScaler via GUI to not booting completely. SSH Access Works but No GUI Access Go to shell and run command df –h the directory you’ll investigate is /var. If /var is...

Troubleshooting NetScaler SD-WAN Reachability

This aim of this article is to help you verify if Virtual Paths/Intranet Service/Internet Service/Passthrough Service is correctly used to reach the destination. 1. Under Monitoring Flows verify that the end client/server traffic is reported under the correct “Service Type”. 2. If the test traffi...

How to Provision Network Bandwidth in a NetScaler SD-WAN Appliance

This article describes how the bandwidth provisioning works in a NetScaler SD-WAN and how to modify the bandwidth provisioning parameters based on the network requirements. Background The SD-WAN provisioning allows for the bidirectional LAN to WAN/WAN to LAN distribution of bandwidth for a WAN Li...

“Appliance license expired” Displayed After Upgrading NetScaler SDX/VPX

The following message is displayed when you logon to NetScaler SDX/VPX UI after upgrading from any version to 12.1-48.13/ 12.0-58.15 : "Appliance license expired"...

“Upgrade in progress. This operation will take about 20 minutes. Please re-login after 20 minutes” on NetScaler SD-WAN

The following message is displayed under Configuration System Maintenance Update Software: “Upgrade in progress. This operation will take about 20 minutes. Please re-login after 20 minutes.”...