Install LXC (Linux Containers) under Ubuntu

Installation

apt install -y bridge-utils debootstrap lxc-templates lxc

http://www.panticz.de/install_lxc

Create container

export LANG=en_US.UTF-8
export CONTAINER=wheezy

sudo sudo lxc-destroy -n ${CONTAINER}
sudo lxc-create -t debian -n ${CONTAINER}
sudo lxc-start -d -n ${CONTAINER}

echo 'Acquire::http::Proxy "http://apt-cacher:3142/";' | sudo tee /var/lib/lxc/${CONTAINER}/rootfs/etc/apt/apt.conf

sudo lxc-attach -n ${CONTAINER} -- apt-get clean
sudo lxc-attach -n ${CONTAINER} -- apt-get update
sudo lxc-attach -n ${CONTAINER} -- apt-get dist-upgrade -y
sudo lxc-attach -n ${CONTAINER} -- apt-get install -y wget vim

# start container in forderground
lxc-start -n vm1  -F

# optional
echo "lxc.start.auto = 1" | tee -a /var/lib/lxc/${CONTAINER}/config

# connect to container
ssh root@$(sudo lxc-info -i -H -n ${CONTAINER})

Install LXC from testing on Debian

echo "deb http://ftp.debian.org/debian testing main" >> /etc/apt/sources.list.d/testing.list
apt-get update
apt-get -t testing install -y lxc
sed -i 's|lxc.network.type = empty|lxc.network.type = veth|' /etc/lxc/default.conf
echo "lxc.network.link = lxcbr0" >> /etc/lxc/default.conf

Update LXC container templates

wget -q --no-check-certificate https://raw.githubusercontent.com/panticz/lxc/master/scripts/lxc-update-templates.sh -O - | sudo bash -

# required for fedora container
sudo apt-get install -y yum  curl

OPTIONAL: install wget and vim by default under debian

sed -i '/iproute/a wget,\\\nvim,\\' /usr/share/lxc/templates/lxc-debian

OPTIONAL: enable apt-cache

XEN: Install Hypervisor (Dom0) under Debian

Install
[embed_url: "https://raw.githubusercontent.com/panticz/installit/master/install.xen.sh"]

Enable XL toolstacks

sed -i 's|TOOLSTACK=|TOOLSTACK=xl|g' /etc/default/xen

configure perfomance
http://wiki.xen.org/wiki/Credit_Scheduler
xm sched-credit
xm sched-credit -d www -w 512

# OPTIONAL: sync time
apt-get install -y ntpdate

ntpdate ntp.ubuntu.com
hwclock --systohc

rm /etc/cron.daily/ntpdate
# updae bootstrap

http://www.panticz.de/update_debootstrap

# manually update xen-create-image
wget http://ftp.de.debian.org/debian/pool/main/x/xen-tools/xen-tools_4.3.1-1_all.deb -O /tmp/xen-tools_4.3.1-1_all.deb
dpkg -x /tmp/xen-tools_4.3.1-1_all.deb /tmp/
mv /usr/bin/xen-create-image /usr/bin/xen-create-image.org
cp /tmp/usr/bin/xen-create-image /usr/bin/xen-create-image
# OPTIONAL: enable ip forward in dom0
cp /etc/sysctl.conf /etc/sysctl.conf.org
sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|g' /etc/sysctl.conf
# OPTIONAL: PCI delegation

http://www.panticz.de/xen_pci_delegation

# reboot

reboot

# Ubuntu Xen Dom0
apt-get install -y xen-hypervisor-4.2-amd64 xen-tools
# LINKS

http://wiki.debian.org/Xen
http://wiki.xensource.com/xenwiki/XenBestPractices
http://www.panticz.de/configure_network_bridge
http://www.panticz.de/update_debootstrap
http://www.chrisk.de/blog/2008/12/how-to-run-xen-in-ubuntu-intrepid-without-compiling-a-kernel-by-yourself/
http://wiki.debian.org/Xen
https://help.ubuntu.com/community/Xen

apt / dpkg 

# Add repository
sudo apt-add-repository universe

# APT download only
apt-get upgrade -y --download-only

# include kept back packages
apt -o APT::Get::Always-Include-Phased-Updates=true upgrade -y

# run update
export DEBIAN_FRONTEND=noninteractive
LANG=en_US.UTF-8 sudo apt-get update -y && sudo apt-get dist-upgrade -y && sudo apt-get autoremove -y && sudo apt-get clean -y

# Add backports repository
sudo add-apt-repository  "deb http://archive.ubuntu.com/ubuntu $(lsb_release -cs)-backports main restricted universe multiverse"

# install all phased updates
sudo apt -o APT::Get::Always-Include-Phased-Updates=true upgrade

# allow unauthenticated repository
apt-get update --allow-unauthenticated

# list updatable packages
apt list --upgradable

# view avaiable package version
apt-cache show wget
apt-cache madison wget

# install specific version
apt-get install package name=version
apt-get install wget=1.6

# install from specific repository
apt-get install -t squeeze-backports wget

# view available versions
apt-cache policy chromium-browser

# autoupdate
http://www.panticz.de/debian-ubuntu-automatic-upgrades

# download package
apt-get download

# list deb package dependency
dpkg -I 

# test DIRECT download package by apt
#Acquire::HTTP::Proxy::packages.gitlab.com "DIRECT";
#Acquire::HTTP::Proxy::packages-gitlab-com.s3.amazonaws.com "DIRECT";
#Acquire::https::Proxy "false";
Acquire::http::Proxy {
    packages.gitlab.com DIRECT;
    *.amazonaws.com DIRECT;
};

# use apt proxy
APT_PROXIES=$(apt-config shell \
http_proxy Acquire::http::Proxy \
https_proxy Acquire::https::Proxy \
ftp_proxy Acquire::ftp::Proxy \
dl_direct Acquire::http::Proxy::download.oracle.com \
)

echo 'Acquire::HTTP::Proxy::packages.gitlab.com "DIRECT";' > /etc/apt/apt.conf.d/99_gitlab

Acquire::http::Proxy {
    packages.gitlab.com DIRECT;
};

# list keys
apt-key list

# test
# lxc enable apt proxy?
eval $(apt-config shell MIRROR Acquire::http::Proxy)

apt-cache showpkg  libapache2-mod-php5

# install package from older distro
apt-get install -t etch -y libdb4.4
debian