Blog · Solution Architect Roland Geldner

News, information and insights from the world of Citrix Networking: expert and trainer Roland Geldner solves problems in system functionality and architecture and teaches Citrix Networking, Mobility, VDI and Cloud.

Latest Posts

Detect and prevent DDoS attacks on Citrix ADC via DTLS

12 29 2020

Since mid-December the Citrix ADC (Netscaler) gateway on the UDP: 443 - DTLS interface (for EDT) has been under attacked with DDoS ...... How can these attacks be detected and what can be done to avoid that? On December 24th, Citrix announced in a "Security Bulletin" a DDoS attack pattern that could affect Citrix ADCs. As part of this attack, attackers can overload the Citrix ADC DTLS network throughput (ADC Out).

Stylebooks; Yes, they can… EN – Test

OpenGraph: Twitter • Solution Architect · Trainer · Project Manager • Roland Geldner

02 10 2020

StyleBooks for Citrix ADC simplify the task of managing complex Citrix ADC configurations. A StyleBook is a template that you can use to create and manage Citrix ADC configurations.

Citrix ADC Exploit “CVE-2019-19781”-en

Citrix ADC Exploit • Solution Architect · Trainer · Project Manager • Roland Geldner

12 23 2019

Last revised on January 27th, 2020 What’s happened: Citrix Systems received a warning regarding a security vulnerability on December 17, 2019 published in all Citrix ADC and gateway platforms. The vulnerability has since spread through the media and television. Several working exploits were released on Friday, January 10th, 2020. The number of attacks registered has ... Read more