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Thomas Koetzing Profile
Thomas Koetzing

@Koetzing

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13 year Citrix Technology Professional | CTP founding member | former Microsoft MVP - RDS | Public Speaker | IT Architect | 20+ years recognized Citrix Expert

Germany
Joined July 2009
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@Koetzing
Thomas Koetzing
5 years
Today I have my 20 years work anniversary with Citrix products! Thank you all for your support over the years. After 20 years we still have logon issue, therfore I compiled a small list of common Logon issues and how to solve them!
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@Koetzing
Thomas Koetzing
21 hours
#Citrix, it's time to address three HDX issues! Check out my latest article discussing HDX and UDP, HDX's traditional graphics mode, and HDX Graphics, along with my thoughts on what Citrix should tackle.
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@Koetzing
Thomas Koetzing
4 days
#Citrix released HF2 for the 2402 LTSR to resolve a cursor issue in single-session environments, similar to Hotfix 1, which also involved a š—³š—¶š—¹š—² š˜€š˜„š—®š—½. Having two hotfixes for an LTSR CU2 isn't promising. Hopefully 2507 LTSR will do better.
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@Koetzing
Thomas Koetzing
28 days
CVE-2025-6759 impacts the š—©š—¶š—æš˜š˜‚š—®š—¹ š——š—²š—¹š—¶š˜ƒš—²š—æš˜† š—”š—“š—²š—»š˜ for CVAD, DaaS, enabling a user with minimal privileges to escalate their š—®š—°š—°š—²š˜€š˜€ š˜š—¼ š—¦š—¬š—¦š—§š—˜š—  š—¹š—²š˜ƒš—²š—¹. Pš—æš—¼š—ŗš—½š˜š—¹š˜† š˜‚š—½š—±š—®š˜š—² your VDA to mitigate vulnerability.
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@Koetzing
Thomas Koetzing
2 months
Urgent alert! #Citrix Netscaler ADC, -SDX, and -Console are now affected by new security vulnerabilities identified as CVE-2025-4365, CVE-2025-5349, and CVE-2025-5777. Check out and
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@Koetzing
Thomas Koetzing
2 months
Article now published!.
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@Koetzing
Thomas Koetzing
2 months
My new article could š—æš—²š˜ƒš—¼š—¹š˜‚š˜š—¶š—¼š—»š—¶š˜‡š—² š—–š—¶š˜š—æš—¶š˜… š—Øš˜€š—²š—æ š—£š—æš—¼š—³š—¶š—¹š—² š— š—®š—»š—®š—“š—²š—ŗš—²š—»š˜ integration. Instead of š˜€š—¶š—ŗš—½š—¹š—² š˜€š˜š—®š˜š—¶š˜€š˜š—¶š—°š˜€, imagine a š—°š—²š—»š˜š—æš—®š—¹ š—±š—®š˜€š—µš—Æš—¼š—®š—æš—± š—¼š˜ƒš—²š—æš˜ƒš—¶š—²š˜„ and more!.Read the article at
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@Koetzing
Thomas Koetzing
2 months
š—”š—œ š—¶š—» š—°š˜‚š˜€š˜š—¼š—ŗš—²š—æ š˜€š˜‚š—½š—½š—¼š—æš˜ - š—® š—æš—²š—®š—¹š—¶š˜š˜† š˜š—µš—®š˜ š—¶š—»š˜€š—½š—¶š—æš—²š˜€!.š—§š—µš—®š—»š—øš˜€ š—”š—œ š˜€š˜‚š—½š—½š—¼š—æš˜, š—œ š˜„š—®š˜€ š—®š—Æš—¹š—² š˜š—¼ š—¶š—±š—²š—»š˜š—¶š—³š˜† š˜š—µš—² š—æš—²š—®š—¹ š—°š˜‚š—¹š—½š—æš—¶š˜ š—¶š—» š—¹š—²š˜€š˜€ š˜š—µš—®š—» š—® š—ŗš—¶š—»š˜‚š˜š—²!.Read my article
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@Koetzing
Thomas Koetzing
3 months
š—„š—²š˜€š˜š—®š—æš˜ š—¼š—³ š˜š—µš—² š—–š—¶š˜š—æš—¶š˜… š—£š—æš—¼š—³š—¶š—¹š—² š— š—®š—»š—®š—“š—²š—æ - š—³š—¼š—°š˜‚š˜€ š—¼š—» š—½š—æš—¼š—³š—¶š—¹š—² š—±š—¶š˜€š—øš˜€! Less complexity, faster logons & optimal support for Office 365 etc. Read my article #Citrix #UPM
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@Koetzing
Thomas Koetzing
3 months
Introducing the š—”š—¦š—žš—²š—ø-š—§š—¼š—¼š—¹.Securely decrypt Citrix Netscaler service passwords with HMAC, AES-CBC, and dynamic KEK derivation. Check it out at .#CyberSecurity #Netscaler
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@Koetzing
Thomas Koetzing
5 months
Be cautious, as pairing Citrix Virtual Apps and Desktops š˜ƒš—²š—æš˜€š—¶š—¼š—» šŸ®šŸ°šŸ­šŸ­ with š—§š—²š—®š—ŗš˜€ š—»š—²š˜„ could lead to disruptions of HDX sessions. If you encounter any issues, consider š—æš—¼š—¹š—¹š—¶š—»š—“ š—Æš—®š—°š—ø to the most recent LTSR version.
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@Koetzing
Thomas Koetzing
5 months
I'm speaking at the #š˜ƒš—¶š—æš˜š˜‚š—®š—¹ #š—²š˜…š—½š—¼ on š— š—®š—æš—°š—µ šŸ®šŸ“. I invite you to join me as I discuss š—§š—µš—² š—–š—¶š˜š—æš—¶š˜… š—„š—²š˜ƒš—¶š—²š˜„, highlighting the five most common issues. Explore the schedule and š˜€š—¶š—“š—» š˜‚š—½ for the online expo!.
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@Koetzing
Thomas Koetzing
6 months
#Microsoft #š—§š—²š—®š—ŗš˜€ š—¶š—»š˜€š˜š—®š—¹š—¹š—®š˜š—¶š—¼š—» š—¶š˜€š˜€š˜‚š—² šŸ­šŸ±šŸ²šŸ¬šŸ² on š—¦š—²š—æš˜ƒš—²š—æ šŸ®šŸ¬šŸ­šŸµ is expected to be resolved with the following release
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@Koetzing
Thomas Koetzing
6 months
It is a š—•š—¹š—®š—°š—ø š—™š—æš—¶š—±š—®š˜† as #Citrix (CSG) has decided to š—±š—¶š˜€š—°š—¼š—»š˜š—¶š—»š˜‚š—² š˜š—µš—² #š—–š—§š—£ š—½š—æš—¼š—“š—æš—®š—ŗ š—²š—³š—³š—²š—°š˜š—¶š˜ƒš—² š—š—®š—»š˜‚š—®š—æš˜† šŸÆšŸ­, šŸ®šŸ¬šŸ®šŸ±! As one of the š—³š—¼š˜‚š—»š—±š—¶š—»š—“ š—ŗš—²š—ŗš—Æš—²š—æš˜€ š—¼š—³ š˜š—µš—² š—–š—§š—£, I am disappointed!
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@Koetzing
Thomas Koetzing
7 months
Attempting to set up the latest #š—§š—²š—®š—ŗš˜€ version on š—¦š—²š—æš˜ƒš—²š—æ šŸ®šŸ¬šŸ­šŸµ results in š—˜š—æš—æš—¼š—æ: šŸ­šŸ±šŸ²šŸ¬šŸ². Microsoft is aware of this problem and is š—°š˜‚š—æš—æš—²š—»š˜š—¹š˜† š—±š—²š˜ƒš—²š—¹š—¼š—½š—¶š—»š—“ š—® š˜€š—¼š—¹š˜‚š˜š—¶š—¼š—».
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@Koetzing
Thomas Koetzing
8 months
If your organization is part of essential infrastructure, monitor your š—”š—²š˜š—¦š—°š—®š—¹š—²š—æ š—“š—®š˜š—²š˜„š—®š˜†š˜€ š—°š—¹š—¼š˜€š—²š—¹š˜†, as they currently face brute force attacks. The German BSI is warning companies! .< In German.
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@Koetzing
Thomas Koetzing
8 months
Guidelines for utilizing #Citrix Provisioning Services (PVS) with #CVAD version 2402 and beyond. here are a few remarks about the device export wizard and the process involving PowerShell.
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@Koetzing
Thomas Koetzing
8 months
Heads-up: With CVAD šŸ®šŸ°.šŸ¬šŸ® š—Ÿš—§š—¦š—„, you š—ŗš˜‚š˜€š˜ š˜‚š˜€š—² š—£š—¼š˜„š—²š—æš˜€š—µš—²š—¹š—¹ for Citrix provisioning catalog creation. .Also, the MMC-based Studio may be phased out in the future, so š—“š—²š˜ š—³š—®š—ŗš—¶š—¹š—¶š—®š—æ š˜„š—¶š˜š—µ š—Ŗš—²š—Æ š—¦š˜š˜‚š—±š—¶š—¼ š—»š—¼š˜„!
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@Koetzing
Thomas Koetzing
9 months
Urgent security alert regarding Citrix Netscaler ADC! Update immediately! Security Advisory for CVE-2024-8534 and CVE-2024-8535
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@Koetzing
Thomas Koetzing
11 months
You can also connect with me and follow me on š—Ÿš—¶š—»š—øš—²š—±š—œš—» to access š—²š˜…š—°š—¹š˜‚š˜€š—¶š˜ƒš—² š˜‚š—½š—°š—¼š—ŗš—¶š—»š—“ š—°š—¼š—»š˜š—²š—»š˜. Make sure not to miss out on it!! .
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@Koetzing
Thomas Koetzing
11 months
Exercise caution when implementing multiple GPOs to š—®š˜ƒš—¼š—¶š—± š—¹š—¼š—»š—“š—²š—æ š—¹š—¼š—“š—¶š—» š˜š—¶š—ŗš—²š˜€. The user faced a 17s delay in policy application, š˜„š—¶š˜š—µ šŸµš˜€ š—·š˜‚š˜€š˜ š˜š—¼ š—±š—¼š˜„š—»š—¹š—¼š—®š—± š˜š—µš—² š—½š—¼š—¹š—¶š—°š—¶š—²š˜€. Out of 75 policies, 25 were applied, while 50 were denied.
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