Configurando LVS/DR para balanceo de carga

Topologia



Instalacion de paquetes
debian-ldirector
aptitude install ldirectord-2 heartbeat
debian-rs y debian-rs2
aptitude install apache2

Configuracion de red

debian-ldirector
auto eth0
iface eth0 inet static
       address 192.168.1.35
       netmask 255.255.255.0
       gateway 192.168.1.1

auto eth0:0
iface eth0:0 inet static
       address 192.168.1.34
       netmask 255.255.255.0

debian-rs
# The primary network interface
auto eth0
iface eth0 inet static
       address 192.168.1.36
       netmask 255.255.255.0
       gateway 192.168.1.1

auto lo:0
iface lo:0 inet static
       address 192.168.1.34
       netmask 255.255.255.255

debian-rs2
# The primary network interface
auto eth0
iface eth0 inet static
       address 192.168.1.37
       netmask 255.255.255.0
       gateway 192.168.1.1

auto lo:0
iface lo:0 inet static
       address 192.168.1.34
       netmask 255.255.255.255



Modificando parametros del kernel para evitar el problema arp
debian-ldirector
#vi /etc/sysctl.conf
net.ipv4.ip_forward = 1
#sysctl -p
debian-rs y debian-rs2
#vi /etc/sysctl.conf
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.eth0.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.eth0.arp_announce = 2
#sysctl -p

Configuracion de ldirectord
vi /etc/ha.d/ldirectord.cf
checktimeout=10
checkinterval=2
autoreload=no
logfile="/var/log/ldirectorlog.log"
quiescent=yes
# Virtual Server for HTTP
virtual=192.168.1.34:80
       fallback=127.0.0.1:80
       real=192.168.1.36:80 gate
       real=192.168.1.37:80 gate
       service=http
       request="test.html"
       receive="funciona"
       scheduler=rr
       protocol=tcp
       checktype=negotiate