Citrix - Pablo Legorreta - Cloud & Virtualization Expert

NetScaler CVE-2025-6543 and CVE-2025-5777 How to Exploit and Remediate

By Pablo Legorreta Citrix, NetScaler (ADC)1 Comment

Introduction Citrix NetScaler appliances, widely deployed in enterprise environments for load balancing, application delivery, and secure remote access, must be rigorously maintained against vulnerabilities. CVE-2025-6543 and CVE-2025-5777 represent critical security…

Redirect HTTP to HTTPS without DOWN server

By Pablo Legorreta NetScaler (ADC)2 Comments

Redirects on NetScaler permanently mark the service as down (read: RED status) which inevitably always leads to questions as to why it was configured with something marked down. There is a better way to perform HTTP to HTTPS redirects on NetScaler.

Enabling NetScaler SNMP

By Pablo Legorreta NetScaler (ADC)

In my recent journey to automate alerting and monitoring, one of the most useful tools for gathering information is SNMP. Setting this functionality up on a NetScaler is simple and can be done through the GUI and CLI. The data for SNMP needs to go to an SNMP collector such as Solarwinds, LogicMonitor, etc.

Configuring IPv6 VIP on NetScaler

By Pablo Legorreta NetScaler (ADC)

How to load balance and leverage a mix of IPv4 and IPv6 addresses on NetScaler. Process depicts how to load balance and IPv4 back-end server with an IPv6 front-end address.

XenApp 7.6 Slow Login & Black Screen

By Pablo Legorreta Virtual Apps & Desktops (CVAD)

On Server 2012 R2 with XenApp 7.6 I noticed a strange phenomenon, when logging in, after the processing of my Group Policies my XenApp session would hang at a black screen for about 10 seconds

Moving Citrix XenApp & XenDesktop Policies Quickly

By Pablo Legorreta PowerShell, Scripting, Virtual Apps & Desktops (CVAD)1 Comment

In large environments, oftentimes there can be lots of Citrix Policies involved. The XenApp 6.5 and XenDesktop 7.x Studio and AppCenter consoles currently do not have an easy mechanism to move policies around quickly. This, however, can be easily accomplished by the use of PowerShell.

XenDesktop Changes made outside of console

By Pablo Legorreta Citrix, Scripting, Virtual Apps & Desktops (CVAD)1 Comment

Issue with CVAD 7.x where using Studio and PowerShell interchangeably can result in the error message "Changes made outside of this console, such as in PowerShell or management tools from previous versions, resulted in a discrepancy between policies. The assigned objects for policy "PolicyName" must match..."