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{{Warning|The majority of the content on this page only applies to older, unsupported Debian versions and is archived on this page for historical reasons only. '''The page you need is [[Installation on Debian]].'''}}
OpenVZ consists of a kernel, user-level tools, and container templates.
This guide tells how to install the kernel and the tools on [http://www.debian.org Debian] Etch or Lenny/Squeeze. For Squeeze, use the Lenny directions. For Wheezy (7.0), use the vzctl package included in wheezy, together with the Wheezy OpenVZ kernels from [http://download.openvz.org/debian/ http://download.openvz.org/debian/]. Alternatively reduced functionality may be possible using the stock Debian Wheezy kernel (based on kernel.org version 3.2) and [[Vzctl_for_upstream_kernel]]. You may also wish to check the information on [http://wiki.debian.org/OpenVz the Debian wiki].
For Etch users, this document explains how to partially upgrade to Debian Lenny and install from lenny repositories ('''use this options at your risk''').
== Kernel installation ==
=== Wheezy and Lenny ===
=== Etch ===
this command will install latest kernel and all required packages like:
<pre>
apt-get install iproute libatm1 linux-image-2.6.26-1-openvz-686 linux-image-openvz-686 rsync vzctl vzquotalibcgroup-dev
</pre>
and will arrange grub bootloader propertlyproperly.
=== Rebooting into OpenVZ kernel ===
net.ipv4.conf.default.forwarding=1
net.ipv4.conf.default.proxy_arp = 0
net.ipv4.ip_forward=1
# Enables source route verification
net.ipv4.conf.all.rp_filter = 1
# Enables the magic-sysrq key
kernel.sysrq = 1
# TCP Explict Congestion Notification
#net.ipv4.tcp_ecn = 0
# we do not want all our interfaces to send redirects
net.ipv4.conf.default.send_redirects = 1net.ipv4.conf.all.send_redirects = 0
[...]
# [sudo] apt-get install vzprocps vzdump
On Debian squeeze, vzdump seems packaged in standard aptline. For lenny, See [[Backup_of_a_running_container_with_vzdump]]
== Secure it ==
Add the following line into vz.conf to activate the respective iptables modules for all containers.
IPTABLES="ip_tables ipt_REJECT ipt_tos ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ip_conntrack ip_conntrack_ftp ip_conntrack_irc ipt_LOG ipt_conntrack ipt_helper ipt_state iptable_nat ip_nat_ftp ip_nat_irc ipt_TOS"
[[http://wiki.debian.org/DebianFirewall][Configure]] your iptable rules inside the container.
After installing the OpenVZ kernel, user tools and a minimal OS template
to create a first container and do some[[basic operations in OpenVZ environment]]. Read the [[download:doc/OpenVZ-Users-Guide.pdf]], browse this wiki.
[[Category: HOWTO]]
[[Category: Debian]]
[[Category: Installation]]