Ucarp

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Voila ce que j'ai retenu de la mise en place d'Ucarp... bon je risque de corriger plus d'une fois cette page mais apres tout c'est un wiki et c'est fait pour ca !

A VENIR !!!!

Contents

Objectif

On a deux machines A et B.
Ces machines sont "identiques" !


La mise en place

Environnement

Scripts indispensables

/etc/sysconfig/carp/vip-down 

#!/bin/sh
exec /sbin/ifconfig $1 down



/etc/sysconfig/carp/vip-up

#!/bin/sh
# We could use ifup directly, but it complains if the address is already used
. /etc/sysconfig/network-scripts/ifcfg-$1
exec /sbin/ifconfig $1 ${IPADDR} netmask ${NETMASK} up


Sur le Master

/etc/sysconfig/carp/vip-100.conf 

# Virtual IP configuration file for UCARP
# The number (from 001 to 255) in the name of the file is the identifier
PASSWORD="plop"
BIND_INTERFACE="eth0"
VIP_INTERFACE="eth0:0"
OPTIONS="-k 1 -P"

/etc/sysconfig/network-scripts/ifcfg-eth0 

DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=10.10.10.110
NETMASK=255.255.255.0


/etc/sysconfig/network-scripts/ifcfg-eth0:0 

DEVICE=eth0:0
BOOTPROTO=static
IPADDR=10.10.10.100
NETMASK=255.255.255.0
ONBOOT=no
ONPARENT=no

Sur le Backup

/etc/sysconfig/carp/vip-100.conf 

# Virtual IP configuration file for UCARP
# The number (from 001 to 255) in the name of the file is the identifier
PASSWORD="labase-vip"
BIND_INTERFACE="eth0"
VIP_INTERFACE="eth0:1"
OPTIONS="-k 10 -P"


/etc/sysconfig/network-scripts/ifcfg-eth0 

DEVICE=eth0
BOOTPROTO=static
IPADDR=10.10.10.107
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet


/etc/sysconfig/network-scripts/ifcfg-eth0:1 

DEVICE=eth0:1
BOOTPROTO=static
IPADDR=10.10.10.100
NETMASK=255.255.255.0
ONBOOT=no
ONPARENT=no

Liens

http://gentoo-wiki.com/HOWTO_Setup_IP_failover_with_UCARP

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