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Are Compatible Printer Cartridges Any Good? A Look at Quality, Page Yield, and Technology

Compatible printer cartridges from certified suppliers deliver print quality and page yield that come very close to the original—at a fraction of the price. What matters isn’t the label, but rather certification to ISO standards, a compatible chip, and sound quality management. This technical overview shows what distinguishes good products from poor ones. The price difference can be significant: Depending on […]

Reducing Electricity Costs When Working from Home: How Your Tech Setup and Plan Really Make a Difference

If you want to lower your electricity costs while working from home, there are four key strategies to focus on: measuring consumption, properly configuring devices that run continuously—such as NAS systems and home labs—shifting loads to off-peak hours, and adjusting your electricity plan to match your load profile. Of these, the rate plan offers the best balance between effort and impact—it costs a one-time fee of half […]

Why Companies Are Missing from AI Responses: Which Server and Bot Settings Block Crawlers Without Them Even Noticing

Many websites block crawlers without realizing it: bot management, WAF rules, or aggressive rate limits return a 403 error to certain user agents. For Googlebot, this is a visibility issue; for response crawlers like OAI-SearchBot or PerplexityBot, it can prevent content from being retrieved as a source by the respective service. Those who block analytics crawlers, on the other hand, primarily lose sight of the […]

Server Room in the Basement: Why Ventilation Is More Than Just a Matter of Temperature

In utility rooms located below ground level, the HVAC system primarily regulates the temperature. Many systems use recirculated air and exchange very little outside air: the heat escapes, but the enriched indoor air remains. In addition to humidity and dust, this also applies to radon, a radioactive noble gas from the ground. Only a measurement taken over a sufficiently […] period can reveal how much of it is present in the room.

Apache HTTP Server 2.6: What Changes Administrators Can Expect

A modern network appliance on a light-colored ESD work surface, symbolizing the testing of web server infrastructure.

Apache HTTP Server 2.6 is not yet available as a stable release. This article provides an overview of the development branch and highlights which configurations, modules, log pipelines, and TLS setups teams should already be testing specifically.

MariaDB 12.0: Features, Update Risks, and Hosting Strategy

An administrator is checking a database upgrade process in the hosting operations room

MariaDB 12.0 introduces new optimizer, audit, replication, and security features. For hosting platforms, however, a controlled update path is of paramount importance: the release model, package version, configuration, applications, and fallback must all be compatible.

Redis 8: New Features and Upgrade Decisions for Hosting Providers

An administrator is planning a Redis update in front of server racks in a hosting operations room.

Redis 8 integrates previous stack components and expands the range of features for search, time series, and vectors. For hosting providers, however, the target version, ACLs, resource planning, the upgrade process, and license selection are equally important.

KernelCare ePortal for Larger Hosting Infrastructures

Centralized patch distribution with staggered groups for different hosting servers

KernelCare ePortal centralizes the distribution and deployment of live patches across large Linux fleets. This article explains when the additional platform is worthwhile and how to manage patch rings, mirroring, replication, and security controls effectively.

Using Redis Lua Scripts Correctly for Atomic Operations

Conceptual representation of an isolated Redis Lua script flow between multiple clients and a consistent key-value pair.

Redis Lua scripts combine reading, checking, and writing into a single, isolated server operation. This article explains KEYS and ARGV, EVAL and functions, cluster limits, error handling, and safe patterns for limits and reservations.

Configuring the NGINX Resolver Cache Correctly

Conceptual diagram of an NGINX reverse proxy with a DNS resolver cache and dynamic backend addresses.

Here's how to configure the NGINX resolver for dynamic backends: DNS TTL, valid, resolver_timeout, variable proxy_pass targets, and dynamic upstreams are clearly separated from one another.

How Can You Tell if a Chat Platform Is Reputable? An Overview of Security Criteria

A reputable chat platform can be identified by clear criteria: a German headquarters that complies with the GDPR, transparent moderation, a minimum age requirement, and a transparent process for handling reports. As a German chat community, Knuddels meets these criteria and demonstrates how technical security and community culture can be combined in practice. Anyone who evaluates providers themselves will find a specific checklist here. Anyone who works professionally with servers, hosting packages […]

Server Infrastructure 2026: A Guide to Choosing the Best WordPress Provider

By 2026, database-driven content management systems such as WordPress will place the highest demands on the underlying server architecture. For system administrators and webmasters, simply providing web space is no longer enough to meet the growing demands of Core Web Vitals and dynamic traffic spikes. What’s needed are uncompromising all-in-one infrastructures that combine performance tuning, robust security mechanisms, and legal compliance in a […]

Smart Home Without the Cloud: The Case for Local Control on Your Own Hardware

A locally operated smart home runs on its own hardware rather than in the manufacturer’s cloud: automations work even without an internet connection, control and automation data can remain within the home, and individual devices from different manufacturers can be combined. The trade-off is that you’re responsible for updates, backups, and remote access. The key factor is whether the desired devices have local interfaces. If you’re already running servers, […]

Comparing MariaDB Flush Methods: Optimizing the INNODB FLUSH Setting

Server Rack with MariaDB Database and Optimized Flush Methods

Learn how to optimally configure MariaDB flush methods and `innodb_flush` using `O_DIRECT`, `fsync`, and `innodb_flush_log_at_trx_commit`. This guide provides practical database tuning tips for HDD, SSD, and cloud environments, with a focus on performance and data security.

Analyzing and Optimizing Linux SoftIRQ Usage

Linux server with visualized SoftIRQ utilization in a modern data center

Learn how to systematically analyze and optimize Linux SoftIRQ utilization to boost your servers' Linux performance through targeted netdev tuning and improved interrupt distribution.

Technical SEO Analysis 2026: The Best Website Check and Audit Tools for Day-to-Day Server Operations

A high-performance server and a properly configured caching setup are only half the battle if faulty code or broken redirects sabotage your rankings. For administrators and webmasters, regular SEO analysis is essential for identifying technical bottlenecks early on. However, a simple website check quickly becomes insufficient for complex infrastructures. When dealing with hundreds of thousands of URLs, deep […]

Kernel Same-Page Merging: KSM for Better Virtualization Performance

Linux Kernel Samepage Merging for Efficient Virtualization in the Data Center

Learn how Kernel Samepage Merging (KSM) in the Linux kernel optimizes RAM usage and enables more virtual machines to run on the same hardware. This article explains how it works, how to configure it, and its impact on virtualization performance—including practical tips for administrators.

Is an Office subscription a money pit? How webmasters save hundreds of euros with used licenses

For self-employed individuals and webmasters, professional office software isn’t a luxury—it’s an indispensable tool. Whether it’s creating quotes, doing bookkeeping in Excel, or preparing a project presentation for a new client, the programs in the Microsoft Office suite are firmly established in the business world. However, the costs—especially for popular subscription models like Microsoft […]

Location, Security, and Scalability: Criteria for Choosing the Right Data Center

Outsourcing a company’s IT infrastructure to an external data center is one of the most fundamental strategic decisions for modern businesses. It involves not only transferring hardware but also a significant degree of responsibility for availability, security, and performance. The wrong choice can lead to latency issues, security vulnerabilities, or unforeseeable costs. Therefore, this process involves much more than […]

2,000-watt balcony power plant: How much continuous load does it actually cover?

A balcony solar power system with a module capacity of 2,000 Wp generates approximately 1,600 to 1,900 kilowatt-hours per year in Germany—enough to cover a large portion of the base load for many tech-savvy households. A maximum of 800 watts can still be fed into the grid. How generation and continuous consumption can be balanced, and when the jump from 800 to 2,000 Wp makes sense for you […]

Compliance in the Digital Age: How Modern ISMS Software Makes Regulatory Obligations Manageable

The days when corporate compliance was handled simply by filing away policies and conducting occasional employee training sessions are finally over. Regulatory requirements for companies are growing rapidly. Whether it’s the NIS 2 Directive, the GDPR, the Supply Chain Due Diligence Act (LkSG), or industry-specific requirements such as DORA—compliance has become a complex, ongoing management task. At the intersection of law, organization, and […]

How do you choose the best web hosting provider?

Choosing a web hosting provider is one of the most important decisions when building a website. Anyone planning an online project—whether a blog, a company website, or an online store—faces a seemingly overwhelming array of plans, technologies, and service promises. The market is particularly fragmented in Germany, where, in addition to large providers, there are many specialized service providers with different areas of focus. A […]

Securing Web Applications: Vulnerabilities You Should Be Aware Of

If you run your own website, when it comes to security, you probably think first of all about your passwords, backups, or SSL. While this is generally correct, it’s unfortunately not enough for complex applications. As soon as you start using user accounts, database queries, interfaces, and forms—among other things—hackers gain new avenues of attack that you need to be aware of as early as […]