netcup Knowledge Base
- Pre-Purchase Essentials: Covers Anexia Group & Nuremberg data center infrastructure, VPS vs. Root Server workload sizing, 0% VAT / EU Reverse Charge billing, and the strict 31-day cancellation rule
- Day-1 Provisioning & Ops: Walks through Debian 12 security hardening, SSH key lockdown, YABS/Geekbench 6/fio hardware verification, and clean minimal OS installation
- Advanced Optimization: Explains cross-border TCP BBR congestion control, G9-to-G12.5 hardware & pricing evolution, and 12 high-value Docker production architectures
This hub indexes all of our in-depth technical guides on netcup VPS and Root Servers, organized by engineering workflow rather than publication date. If you are new to netcup, start with Step 1 below.
Looking for a quick answer? Press / to search, or check our 24 Frequently Asked Questions and Technical Glossary.
Step 1: Understand the Provider#
- About netcup: Company Background, Anexia Backbone & Nuremberg Data Centers — History since 2003, owned vs. leased facilities, product lines, and an honest look at German contract rigidity;
- netcup Price History & Hardware Generations (G9 to G12.5) — How specs, storage media, and pricing evolved from G9 to G12.5, plus grandfathered contract rules;
- netcup Reviews & Community Reputation — Independent benchmarks and long-term user feedback from LowEndTalk, Reddit, and sysadmin communities.
Step 2: Essential Rules Before You Order#
- 0% VAT Exemption, EU Reverse Charge, Payment Methods & Avoiding PayPal FX Fees — Why non-EU customers and EU businesses with a VAT ID pay 0% VAT, invoice payment in CCP, and how to avoid PayPal's 4% currency conversion markup;
- Refunds, 31-Day Cancellation Notice, Free PUSH Transfers & Avoiding Debt Collection — How the 30-day money-back guarantee works, the strict 31-day notice period under German contract law, and 100% free server transfers via CCP Transfer Code;
- How to Choose the Right netcup Server — Five architectural dimensions (workload jitter, MySQL OOM boundaries, Block Storage math, routing, and contract terms) to pick the right tier.
Step 3: Day-1 Provisioning Checklist#
- Clean OS Reinstall, Partition Resizing & Initial Setup — Minimal Debian/Ubuntu installation, disk expansion, custom ISO mounting, and baseline sysctl scripts;
- VPS Security Hardening Checklist — SSH public-key authentication, UFW/nftables firewall rules, fail2ban jails, and unattended security updates;
- Complete VPS Benchmarking Guide — Three-stage CPU, NVMe/SSD fio IOPS, and network throughput testing with reference baselines.
Step 4: Tune Network & Routing Performance#
- VPS Networking Fundamentals: Latency, MTR Routing, TCP BBR & DNS — Reading
mtrtraces, enabling TCP BBR congestion control, and diagnosing peering bottlenecks; - Looking Glass & Data Center Speed Test — Official test IPs, Looking Glass endpoints, and latency comparisons across Nuremberg, Vienna, Amsterdam, Manassas, and Singapore.
Step 5: Put Your Server to Work#
- What Can You Run on a netcup VPS? 12 Practical Self-Hosted Scenarios — Production blueprints ranging from Ghost/WordPress and Nextcloud to CI/CD runners, observability stacks, and encrypted off-site Borg/Restic backups.
Interactive Tools & Reference#
- Technical Glossary — Concise explanations of VPS, Root Server, fair-use traffic, rDNS, snapshots, KVM/VNC, clean OS install, and BBR;
- Interactive Server Chooser — Answer four workload questions to get an instant primary and alternative server recommendation;
- True Cost Calculator — Compute your exact monthly effective cost after contract terms, VAT rules, and voucher codes;
- Community Discussion — Ask questions with your specific server model and error logs if your edge case isn't covered above.
All Knowledge Base Articles#
Not sure which guide to read first?#
Start with our architecture sizing guide to match your workload to the right server family.
An in-depth engineering profile of German hosting provider netcup GmbH: founded in Karlsruhe in 2003, backed by Austria's Anexia Group (AS197540), operating two owned green data centers in Nuremberg, and balancing raw hardware value against strict German contract law.
Read Guide →How to benchmark a new netcup Root Server or VPS using YABS: real-world AMD EPYC 9645 (Zen 5) Geekbench 6 reference scores, fio 4K random IOPS baselines, CPU steal checks, and multi-stream iperf3 network testing.
Read Guide →Stop guessing server specs. Size your netcup infrastructure across five real-world dimensions: burstable vs. sustained CPU workloads, Linux OOM Killer memory boundaries for MySQL/PostgreSQL, Local Block Storage economics, data center routing, and contract exit strategies.
Read Guide →Complete breakdown of netcup's global datacenter footprint: flagship Nuremberg (NUE), Vienna (VIE), Amsterdam (AMS), Manassas US-East (MNZ), and Singapore (SIN) with real-world latency, peering analysis, and migration rules.
Read Guide →Deep dive into netcup's Anexia AS197540 global backbone, European & transatlantic peering, the 2 TB / 24h outbound fair-use traffic shaping policy, and Linux kernel TCP BBR + high-BDP buffer optimization.
Read Guide →Complete historical archive of netcup hardware generations (G9, G10, G11, G12, G12.5) and pricing shifts: the evolution of €1 micro-VPS plans, the G12.5 NVMe-to-SSD RAID10 transition, grandfathered contract protections, and safe CCP Transfer Code practices.
Read Guide →Complete guide to netcup's German contract rules (BGB): how to observe the strict 31-day cancellation notice period in CCP, claim the 30-day money-back guarantee (Widerruf), transfer unwanted servers for €0 via CCP Transfer Code (PUSH), and avoid Creditreform debt collection.
Read Guide →Production Linux security checklist for netcup servers: Ed25519 SSH key authentication, Debian 12 sshd_config.d hardening, systemd Fail2ban configuration, and fixing the critical Docker iptables UFW bypass vulnerability.
Read Guide →How to fix unallocated disk space and growpart swap partition errors on netcup VPS & Root Servers, change German QWERTZ console keymaps, and perform clean Debian/Ubuntu/Windows installations via SCP ISO or netboot scripts.
Read Guide →Turn your netcup VPS or Root Server into a sovereign private cloud: 12 battle-tested production self-hosting stacks including Mailcow email, Vaultwarden, Nextcloud with Block Storage, Restic encrypted backups, and game servers.
Read Guide →Complete guide to netcup billing: how non-EU customers (US, UK, Canada, Australia, Switzerland) and EU businesses (via Reverse Charge VAT ID) get 0% VAT net pricing, how to pay CCP invoices without KYC delays, and how to avoid PayPal's 4% currency conversion markup.
Read Guide →