Success Stories

Global Client Infrastructure Renewed and Handed Over

Industry: Manufacturing
Service Area: Application Lifecycle, Digital Workplace
Technology: ceterion Packaging Framework, Citrix, Microsoft Configuration Manager, Omnissa Horizon

Upgrading an outdated client management infrastructure—parts of which were no longer functional—at 15 locations, followed by ongoing operation and a structured handover.

Background

The client management infrastructure of an industrial company with locations distributed worldwide had grown over the years and was, in many key areas, no longer functional.

Specifically, this meant that application downloads would abort without any discernible pattern. It was not possible to distribute patches. There was no centralized, standardized operating system installation. And not all locations were even connected to the central management system; at some, local workarounds had become established.

NetScaler Operations in the Financial Sector: Applying Patches Under Time Pressure

Industry: Banking
Service Area: Security and Operations
Technology: Citrix NetScaler, Citrix NetScaler Gateway

Lifecycle and security management for NetScaler environments at an IT service provider in the financial sector, since 2021.

Background

NetScaler occupies a prominent position in the network: as an access point for applications and load balancing. In Germany alone, several thousand appliances are accessible from the Internet, and the platform is consequently a prime target for attackers. Several vulnerabilities discovered in recent years were actively exploited before the majority of operators had applied patches. The BSI has repeatedly issued cybersecurity warnings regarding this issue.

M365 license costs allocated to 92 cost centers, monthly since 2023

Service Area: Digital Workplace, License and Cost Transparency
Technology: Active Directory, Microsoft 365, Microsoft Entra ID, Microsoft Graph

From collective billing with no organizational basis to internal cost allocation based on the source of the activity.

Background

A company in the automotive industry allocated its Microsoft 365 licensing costs centrally, without linking them to the departments that generated them. Microsoft 365 invoices list license types, quantities, and prices, but do not specify which department or cost center incurred the costs.

WAF operation with automated rule generation

Industry: Banking
Service Area: Security and Operations
Technology: Citrix NetScaler, Web Application Firewall

Managed service for operating a web application firewall on Citrix NetScaler in the banking sector, since 2020.

Background

The real effort involved in operating a WAF lies not in troubleshooting, but in managing the rules. Each release of the protected application can render rules invalid or require new ones. If this is maintained manually, adjustments take weeks, false positives are corrected during operation, and, when in doubt, security measures are relaxed to avoid blocking business processes.

643 software packages migrated in 20 person-days

Industry: Public Administration
Service Area: Application Lifecycle
Technology: ceterion Migration Toolkit, ceterion Packaging Framework, Ivanti DSM

Replacement of a software distribution system based on Ivanti DSM within a specified timeframe. Conversion of the entire software portfolio into a platform-independent format without a migration project.

Background

A public administration organization with approximately 1,800 clients wanted to replace its software distribution system based on enteo NetInstall, now known as Ivanti DSM. The inventory, which had grown over the years, comprised 643 packages, all of which had to be retained.

Paused Windows rollout resumed

Industry: Healthcare
Service Area: Digital Workplace, Error Analysis
Technology: Group Policy, Windows Client

Two overlapping error patterns within a single time window, with no common cause. They were separated, assigned, and the rollout was approved again in ten days.

Symptom

A healthcare laboratory service provider was in the process of rolling out a new Windows client to 300 devices. The rollout had to be halted: after logging in, the affected devices repeatedly displayed only a gray screen and subsequently became inoperable. The rollout was suspended for seven weeks.