I have been using Linux network bridges for a while at work for various reasons, ranging from installing a new invisible firewall to measuring bandwidth in a client server setup. Until now, I always used a script called by rc.local to create the bridge and add interfaces to it, but today I found the proper Red-Hat way of using bridged interfaces:

If you have read until here, you are probably already aware that, in Red Hat or CentOS, interfaces are configured in /etc/sysconfig/network-scripts/ifcfg-[interface-name]

So the first step is to create a interface file for the future bridge: ifcfg-br0

DEVICE=br0
TYPE=Bridge
BOOTPROTO=static
BROADCAST=192.168.1.255
IPADDR=192.168.1.10
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
USERCTL=no
IPV6INIT=no
PEERDNS=no
ONBOOT=yes

DEVICE=eth0
BRIDGE=br0
ONBOOT=yes

DEVICE=eth1
BRIDGE=br0
ONBOOT=yes

You can now easily filter traffic thanks to the physdev module of iptables or install an invisible proxy server.

le code suivant :
- désactive le bouton "Submit" du bloc de recherche. La recherche est donc tout simplement validee par la touche entree.
- applique la valeur "rechercher ..." au champ de recherche afin d'indiquer un peu a quoi sert ce formulaire.
- remet cet valeur a zero lorsque le champ est selectionné.

Cela donne le "plus-simple-tu-meurs" bloc de recherche en haut a droit de cette page.

code : template.php

function template_search_block_form($form) {
$form['search_block_form_keys']['#attributes'] = 
 array(
  'onselect' => value='\'\'',
  'onclick' => value='\'\''
 );
$form['search_block_form_keys']['#value'] = 
   'rechercher ...';
$form['submit']['#type'] = 'hidden';
$output = form_render($form);
return $output;
}