Apa Itu Load balancing..??? ywda google aja dulu dah... klo udah mari ikutin perintah2 dibawah ini ok..enjoyy...@_@
1. Login terus sudo root.
# su -
2. Edit IP address interface.
# vi /etc/network/interfaces
auto eth0
iface eth0 inet static
address 10.0.148.48
netmask 255.255.255.0
auto eth1
iface eth1 inet static
address 192.168.0.222
netmask 255.255.255.0
auto eth2
iface eth2 inet static
address 192.168.1.222
netmask 255.255.255.0
3. rubah sources.list biar sesuai sumber
software ubuntu yang kita inginin.
# vi /etc/apt/source-list
deb ftp://192.168.0.1/pub/edgy-repo1/ edgy main restricted
deb ftp://192.168.0.1/pub/edgy-repo2/ edgy universe
deb ftp://192.168.0.1/pub/edgy-repo3/ edgy universe
deb ftp://192.168.0.1/pub/edgy-repo4/ edgy universe multiverse
# apt-get update
4. install SSH
# apt-get install openssh-server
# /etc/init.d/ssh restart
5. rubah waktu timezone
# vi /etc/timezone
Asia/Jakarta
Setup iproute2
gunanya supaya dibooting tetap ada, masukin
perintah-perintah ini ke shell script dan masukin ke /etc/rc.local
/sbin/ip link set lo up
/sbin/ip link set eth0 up
/sbin/ip link set eth1 up
/sbin/ip link set eth2 up
/sbin/ip route flush table adsl
/sbin/ip route flush table blahblohnet
/sbin/ip route flush table internet
/sbin/ip addr add 127.0.0.1/8 brd 127.0.0.255 dev lo
/sbin/ip addr add 192.168.1.222/24 brd 192.168.1.255 dev eth2
# /sbin/ip addr add 10.0.148.48/24 brd 10.0.148.255 dev eth0
/sbin/ip addr add 192.168.0.222/24 brd 192.168.0.255 dev eth1
/sbin/ip route add 127.0.0.0/8 dev lo
/sbin/ip route add 10.5.148.0/24 via 10.0.148.254 dev eth0
/sbin/ip route add 192.168.0.0/24 dev eth1
/sbin/ip route add 44.132.33.0/24 via 192.168.0.10 dev eth1
/sbin/ip route add 192.168.11.0/24 via 192.168.0.10 dev eth1
/sbin/ip route add 125.160.6.0/24 via 192.168.1.1 dev eth2
/sbin/ip route add 202.159.32.0/24 via 192.168.1.1 dev eth2
/sbin/ip rule add prio 10 table main
/sbin/ip rule add prio 20 table adsl
/sbin/ip rule add prio 30 table blahblohnet
/sbin/ip rule add prio 40 table internet
/sbin/ip route del default table main
/sbin/ip route del default table adsl
/sbin/ip route del default table blahblohnet
/sbin/ip route del default table internet
/sbin/ip rule add prio 20 from 192.168.1.0/24 table adsl
/sbin/ip route add default via 192.168.1.1 dev eth2 src 192.168.1.222 proto
static table adsl
/sbin/ip route append prohibit default table adsl metric 1 proto static
/sbin/ip rule add prio 30 from 10.0.148.0/24 table blahblohnet
/sbin/ip route add default via 10.0.148.254 dev eth0 src 10.0.148.48 proto
static table rtrwnet
/sbin/ip route append prohibit default table blahblohnet metric 5 proto static
# Setup load balancing gateway
/sbin/ip rule add prio 40 table internet
/sbin/ip route add default proto static table internet \
nexthop via 192.168.1.1 dev eth2 weight 1 \
nexthop via 10.0.148.254 dev eth0 weight 10
# Setup routing ke ISP
/sbin/ip route add 202.138.236.0/24 proto static table internet \
nexthop via 192.168.1.1 dev eth2 weight 10 \
nexthop via 10.0.148.254 dev eth0 weight 1
Setup IPTABLES
gunanya supaya dibooting tetap ada, masukin perintah-
perintah ini ke shell script dan masukin ke /etc/rc.local
/bin/echo 1 > /proc/sys/net/ipv4/ip_forward
/sbin/iptables -F
/sbin/iptables -P INPUT DROP
/sbin/iptables -A INPUT -p tcp -i eth1 --destination-port 25 -s
! 192.168.0.1 -j DROP
/sbin/iptables -A INPUT -i eth1 -j ACCEPT
/sbin/iptables -A INPUT -i eth0 -p tcp -s 0/0 --dport 25 -j ACCEPT
/sbin/iptables -A INPUT -i eth2 -p tcp -s 0/0 --dport 25 -j ACCEPT
/sbin/iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
/sbin/iptables -A INPUT -p tcp -i eth0 -j REJECT --reject-with tcp-reset
/sbin/iptables -A INPUT -p tcp -i eth2 -j REJECT --reject-with tcp-reset
/sbin/iptables -A INPUT -p udp -i eth0 -j REJECT
--reject-with icmp-port-unreachable
/sbin/iptables -A INPUT -p udp -i eth2 -j REJECT
--reject-with icmp-port-unreachable
/sbin/iptables -t nat -A POSTROUTING -o eth2 -j SNAT --to 192.168.1.222
/sbin/iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to 10.0.148.48
Setup /etc/iproute2/rt_tables
# vi /etc/iproute2/rt_tables
120 adsl
121 blahblohnet
123 internet
sumber :
http://opensource.telkomspeedy.com/wiki/index.php/Load_Balancing
