OpenVZ Container Technology & Node Management
Technical administration for OpenVZ 7 and Virtuozzo container nodes. prlctl management, ploop disk maintenance, and container resource tuning.
Supported Platforms & Technologies:
Engineering Scope & Deliverables
Concrete administration, tuning, and incident resolution capabilities for this environment.
OpenVZ 7 & Virtuozzo Node Operations
Configuring compute nodes on RHEL/CentOS kernels, managing container density, and maintaining host-level security patches.
prlctl & vzctl Container Administration
Command-line container lifecycle operations, setting memory/swap thresholds (physpages / swappages), and CPU core quotas.
Ploop & Container Storage Management
Ploop disk image resizing, filesystem checks (e2fsck on ploops), snapshot lifecycles, and storage compaction.
Veth & Venet Network Routing
Configuring Virtual Ethernet (veth) bridge modes and Virtual Network (venet) point-to-point IP routing.
Zero-Credential Form Policy
Frequently Asked Questions
Clear answers about operational models, access security, and engineering scope.
01 What are the advantages of OpenVZ over KVM?
OpenVZ containers share the host kernel, yielding virtually zero virtualization overhead, instant boot times, and very high container density on compute nodes.
02 Can we run custom kernels inside an OpenVZ container?
No. All OpenVZ containers share the compute node's single kernel. For custom kernel modules (like WireGuard or custom iptables tables), KVM is required.
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