Netcup & Cloud Hosting Glossary

Clear, authoritative explanations of essential web hosting, virtualization, hardware, and network terminology.

Root Server (RS)

Hardware

A virtualized server with strictly dedicated physical CPU cores that are not shared with any other tenant.

💡 Netcup Context & Practical Tip

At Netcup, the RS (Root Server) product line guarantees 0% CPU steal, making it ideal for persistent 24/7 compute workloads, game hosting, and mission-critical databases.

VPS (Virtual Private Server)

Virtualization

A virtual machine running within a shared physical host, where CPU cores are shared among multiple tenants on a time-sliced basis.

💡 Netcup Context & Practical Tip

Netcup VPS G12 plans provide exceptional price-to-performance for web applications, Docker testbeds, and personal homelabs under reasonable fair-use CPU policies.

CPU Steal Time (%st)

Metrics

The percentage of time a virtual CPU has runnable tasks but is forced to wait because the hypervisor is servicing another tenant.

💡 Netcup Context & Practical Tip

High steal time on cheap budget hosts degrades application speed. Netcup's Root Server line guarantees zero steal time.

ECC RAM (Error-Correcting Code)

Memory

Specialized enterprise RAM that automatically detects and corrects single-bit memory data corruption.

💡 Netcup Context & Practical Tip

All Netcup Generation 12 servers utilize DDR5 ECC memory, protecting financial ledgers, ZFS pools, and databases against silent data corruption.

KVM (Kernel-based Virtual Machine)

Virtualization

A full virtualization technology built natively into the Linux kernel that provides complete hardware emulation.

💡 Netcup Context & Practical Tip

Unlike container-based OpenVZ/LXC, Netcup uses KVM exclusively, allowing custom kernel modules, Docker containerization, and custom ISO installations.

CCP vs SCP

Management

The two distinct administrative portals provided by Netcup: Customer Control Panel (CCP) and Server Control Panel (SCP).

💡 Netcup Context & Practical Tip

CCP manages contracts, domains, and invoices. SCP manages raw server hardware: power toggles, VNC remote consoles, snapshots, and ISO mounting.

DDoS Scrubbing

Security

An automated security perimeter that analyzes inbound network traffic and filters out malicious distributed denial-of-service volumetric floods.

💡 Netcup Context & Practical Tip

Netcup includes multi-layer automated DDoS protection free of charge across all nodes, shielding hosted servers up to several hundred gigabits of flood volume.

Traffic Flatrate (Fair-Use)

Network

Unmetered data transfer with zero overage billing, subject to 24-hour rolling average soft-throttle policies (>3 TB/24h on RS, >2 TB/24h on VPS).

💡 Netcup Context & Practical Tip

Netcup offers generous 1 Gbps to 2.5 Gbps burstable connectivity with unmetered traffic, preventing unexpected end-of-month bandwidth bills.

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