Hardcore Linux

Anything about Ubuntu, Centos, openSuSe and Fedora

Monthly Archives: June 2010

Short-cut to insert Unicode Characters in Linux

I don’t know why I am so late learning this thing, but then I’d like to share it to everyone who still don’t know to insert Unicode Characters (UTF-8) directly anywhere in linux (Console, OpenOffice, Firefox ..etc).

1. Press Ctrl + Shift + U, and wait for the small “u” character to appear.

2. Then type in the corresponding hex code for that characters, here’s a widely used character here in the Philippines for example the Ñ (D1) and lower version ñ (F1).

3. Press ENTER afterwards.

4. Done.

LXC on Ubuntu 10.04

LXC (LinuX Containers) is a  lightweight virtualization that lets you run an isolated processes and resources. You can run this so-called “containers” inside your Linux host and use the resources without the need of paravirt drivers, the performance is almost as native machine does.

How to install?

1. First install the necessary packages.

$> sudo apt-get install lxc bridge-utils debootstrap

2. Mount the cgroup, which lxc uses to regulate and limit resources for the containers.Modify your /etc/fstab and add the following:

none  /cgroup  cgroup  defaults  0 0

3. Then configure your network card to bridge mode.

auto lo
iface lo inet loopback

auto br0
iface br0 inet dhcp
    bridge_ports eth0
    bridge_stp off
    bridge_maxwait 5
    post-up /usr/sbin/brctl setfd br0 0

4. You can also set it to static IP.

auto lo
iface lo inet loopback

auto br0 
iface br0 inet static
   address 192.168.1.10
   netmask 255.255.255.0
   broadcast 192.168.1.255
   gateway 192.168.1.1
   bridge_ports eth0
   bridge_stp off
   bridge_maxwait 5
   post-up /usr/sbin/brctl setfd br0 0

5. Reboot and now your set. You can now create your own sets of containers or use the pre-configured from this site. I, myself still failed to create my own container templates, so for now I’m still using what bodhizazen have created.

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