DNS Resolution fails due to Negative Caching

Steps to reproduce this issue: 1. Administrator added an authoritative name server A on Netscaler to resolveStoreFront LB's VIP. 2. Becasue name server A didn't have address record for Storefront LB fqdn, so DNS resolution failed. 3. Then administrator changed to another authoritative name...

NetScaler firmware upgrade to 13.1-42.47 or later versions failing from GUI

NetScalers havingany builds of 12.1 or 13.0 version or earlier than 13.1-42.47 cannot perform an upgrade to the version 13.1-42.47 or later through GUI. Trying to perform an upgrade through GUI reports an error "file too large" or UI might hang...

Unable to filter Instance Syslog messages over 1 Month in ADM

Customer wanted to audit NetScaler historical instance syslog in ADM, however could only obtain data within 1 Month in GUI page. ADM instance syslog data pruning is configured with 90 days, there should have data age greater than 1 Month. P.S.data pruning configure...

After NetScaler upgrade to 13.1-45.61 Bind commands to SSL service not saved

After NetScaler upgrade to firmware version 13.1-45.61, the bind certkey and ECC curve commands to service/service group/internal services are not saved...

How to Retain the Custom Settings Made to NetScaler Appliance after the Restart

This article contains information about retaining the customer settings you have made to the NetScaler or Access Gateway Enterprise Edition appliance after the appliance is restarted. When you restart the NetScaler or Access Gateway Enterprise Edition appliance, the appliance automatically copies...

NetScaler Virtual Server Becomes Inaccessible Because of IP Conflict Issue

NetScaler virtual server becomes inaccessible because of IP conflict issue...

All ADC using pooled license entered grace period

All Netscaler Instances using Pooled License via ADM agent entered grace period...

Which SNIP will be selected by NetScaler to connect with backend server

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[NetScaler] HA Full Sync may cause Heartbeats missing

In a NetScaler HA High Availability setup, you may observe the following issues: HA Full sync can cause both nodes report peer node DOWN due to heartbeats missing. A new command propagation can cause HA Full sync again, and also leads node DOWN. The issue happens when all of the following trigger...

NSC: NetScaler (Citrix ADC) MPX/SDX 15000, 26000, 26000-100G, 26000T-100G

Citrix Systems, Inc. announces a Notice of Status Change for the NetScaler Citrix ADC MPX/SDX 15020/15020Z, MPX/SDX 15030/15030Z, MPX/SDX 15040/15040Z, MPX/SDX 15060/15060Z, MPX/SDX 15080/15080Z, MPX/SDX 15100/15100Z, MPX/SDX 15120/15120Z, MPX/SDX 26100/26100Z, MPX/SDX 26160/26160Z, MPX/SDX...

[CGS] Citrix Cloud Workspace launching Desktop via CSG is stuck at "connecting" and failed

Citrix Cloud Workspace launching Desktop/App via CSG Citrix Gateway Service is stuck at "connecting" and failed. In the Netscaler Gateway Service logs, seen in ns.log: Event "Application launch failed. Connect command sent to Controller."...

Device enrollment fails with nFactor authentication enabled on latest Netscaler versions

XenMobile device Enrollment fails while authentication with Gateway with nFactor enabled on latest version of NetScaler...

Unable to update WAF Signatures "File too large"

Customer is unable to update NetScaler AppFw Signatures from the GUI and receives an error "File too large" when attempting the WAF signature update...

[NetScaler] Graceful disable service may trigger TCP RESET immediately

According to eDoc:Graceful shutdown of services. If we disable an HTTP service with the following command: disable service HTTPSvcName 0 -graceFul YES We expect to see all ESTABLISHED connections alive. But in real cases, we may see partial connections got TCP RST from NetScaler ADC immediately...

How to disable/enable a service (LB, GSLB, etc.) using the NetScaler's CLI

How to disable/enable a service LB, GSLB, etc. using CLI...

ADM Service: How to identify which VIPs belong to which NetScaler

To quickly identify within ADM / ADM Service in which NetScalers a specific VIP LB/CS/GW,etc. may be configured...

Virtual Servers and Service Groups DOWN after secondary ADC upgrade

Virtual Servers and Service Groups DOWN after secondary NetScaler upgrade...

The vulnerability of the control interface for delivering web applications in NetScaler SD-WAN and the software-based network management solution in Citrix SD-WAN allows attackers to execute arbitrary SQL queries.

The vulnerability of the delivery interface component in NetScaler SD-WAN and Citrix SD-WAN software management tools is related to the lack of security measures for handling SQL query structures. Exploiting this vulnerability allows an attacker to execute arbitrary SQL queries remotely...

How to hide Storefront store from NetScaler Gateway

This article address a workaround to hide multiple stores' choice when adding account via NetScaler Gateway in Workspace at the fist time...

[Citrix NetScaler] Monitor DOWN with error: "No MIP/SNIP available to send the monitor probe"

You may see services DOWN with error "No MIP/SNIP available to send the monitor probe". 216814 PPE-0 MonServiceBindingXXXXXXXXXX: DOWN; Last response: Failure - No MIP/SNIP available to send the monitor probe. Thu Dec 17 08:45:07 2020...