FAQ

General

What is a Virtual Environment (Virtual Private Server, VPS, VE)?

See VE

Who needs OpenVZ? How it can be used?

See Use cases

How is OpenVZ different from other technologies?

See Introduction to virtualization

How is OpenVZ updated and why it is secure?

See Security

Installation and upgrade

What hardware is supported by OpenVZ kernel?

See Virtuozzo HCL.

Why there are different kernel flavours available and what do they mean?

See Different kernel flavors (UP, SMP, ENTERPRISE, ENTNOSPLIT)

How do I rebuild the kernel?

See Kernel build

What does 021stab018 in OpenVZ kernel version mean?

See Kernel versioning

How can I check package signatures?

See Package signatures

Networking

How do I set up VPN for a VE?

See VPN via the TUN/TAP device

What is veth and how do I use it?

See Virtual Ethernet device

Troubleshooting

My kernel crashed. What should I do?

See When you have an oops

I see a lot of processes in D state. What does that mean?

See Processes in D state