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https://lms.onnocenter.or.id/wiki/index.php?title=Load_Balancing_di_Linux&diff=9991
Load Balancing di Linux
2009-11-14T04:08:36Z
<p>Strayermoon: /* Setup iproute2 */</p>
<hr />
<div>== Install Router Load Balancing di Ubuntu ==<br />
<br />
* insert ubuntu disc<br />
* boot<br />
<br />
Selanjutnya install a command line system<br />
<br />
Login ke system yang baru kita install. Lakukan sudo root.<br />
<br />
$ sudo passwd root<br />
<br />
# su -<br />
<br />
Edit IP address interface<br />
<br />
# vi /etc/network/interfaces<br />
auto eth0<br />
iface eth0 inet static<br />
address 10.0.148.48<br />
netmask 255.255.255.0<br />
auto eth1<br />
iface eth1 inet static<br />
address 192.168.0.222<br />
netmask 255.255.255.0<br />
auto eth2<br />
iface eth2 inet static<br />
address 192.168.1.222<br />
netmask 255.255.255.0<br />
<br />
Ubah sources.list agar sesuai dengan sumber software Ubuntu yang kita inginkan.<br />
<br />
# vi /etc/apt/source-list<br />
deb ftp://192.168.0.1/pub/edgy-repo1/ edgy main restricted<br />
deb ftp://192.168.0.1/pub/edgy-repo2/ edgy universe<br />
deb ftp://192.168.0.1/pub/edgy-repo3/ edgy universe<br />
deb ftp://192.168.0.1/pub/edgy-repo4/ edgy universe multiverse <br />
# apt-get update<br />
<br />
Install openssh server agak dapat melakukan remore login<br />
<br />
# apt-get install openssh-server<br />
# /etc/init.d/ssh restart<br />
<br />
Ubah timezone agar sesuai dengan daerah anda<br />
<br />
# vi /etc/timezone<br />
Asia/Jakarta<br />
<br />
<br />
=== Setup iproute2 ===<br />
<br />
Agar saat nanti di booting tetap ada,<br />
masukan perintah-perintah ini ke shell script<br />
dan masukan ke /etc/rc.local<br />
<br />
<br />
/sbin/ip link set lo up<br />
/sbin/ip link set eth0 up<br />
/sbin/ip link set eth1 up<br />
/sbin/ip link set eth2 up<br />
<br />
/sbin/ip route flush table adsl<br />
/sbin/ip route flush table rtrwnet<br />
/sbin/ip route flush table internet<br />
<br />
/sbin/ip addr add 127.0.0.1/8 brd 127.0.0.255 dev lo<br />
<br />
/sbin/ip addr add 192.168.1.222/24 brd 192.168.1.255 dev eth2<br />
/sbin/ip addr add 10.0.148.48/24 brd 10.0.148.255 dev eth0<br />
/sbin/ip addr add 192.168.0.222/24 brd 192.168.0.255 dev eth1<br />
<br />
/sbin/ip route add 127.0.0.0/8 dev lo<br />
/sbin/ip route add 10.5.148.0/24 via 10.0.148.254 dev eth0<br />
/sbin/ip route add 192.168.0.0/24 dev eth1<br />
/sbin/ip route add 44.132.33.0/24 via 192.168.0.10 dev eth1<br />
/sbin/ip route add 192.168.11.0/24 via 192.168.0.10 dev eth1<br />
/sbin/ip route add 125.160.6.0/24 via 192.168.1.1 dev eth2<br />
/sbin/ip route add 202.159.32.0/24 via 192.168.1.1 dev eth2<br />
<br />
/sbin/ip rule add prio 10 table main<br />
/sbin/ip rule add prio 20 table adsl<br />
/sbin/ip rule add prio 30 table rtrwnet<br />
/sbin/ip rule add prio 40 table internet<br />
<br />
/sbin/ip route del default table main<br />
/sbin/ip route del default table adsl<br />
/sbin/ip route del default table rtrwnet<br />
/sbin/ip route del default table internet<br />
<br />
/sbin/ip rule add prio 20 from 192.168.1.0/24 table adsl<br />
/sbin/ip route add default via 192.168.1.1 dev eth2 src 192.168.1.222 proto static table adsl<br />
/sbin/ip route append prohibit default table adsl metric 1 proto static<br />
<br />
/sbin/ip rule add prio 30 from 10.0.148.0/24 table rtrwnet<br />
/sbin/ip route add default via 10.0.148.254 dev eth0 src 10.0.148.48 proto static table rtrwnet<br />
/sbin/ip route append prohibit default table rtrwnet metric 5 proto static<br />
<br />
# Set up load balancing gateways<br />
/sbin/ip rule add prio 40 table internet<br />
/sbin/ip route add default proto static table internet \<br />
nexthop via 192.168.1.1 dev eth2 weight 1 \<br />
nexthop via 10.0.148.254 dev eth0 weight 10<br />
<br />
# Setup routing to ISPs<br />
/sbin/ip route add 202.138.236.0/24 proto static table internet \<br />
nexthop via 192.168.1.1 dev eth2 weight 10 \<br />
nexthop via 10.0.148.254 dev eth0 weight 1<br />
<br />
=== Setup iptables ===<br />
<br />
Agar saat nanti di booting tetap ada,<br />
masukan perintah-perintah ini ke shell script<br />
dan masukan ke /etc/rc.local<br />
<br />
<br />
/bin/echo 1 > /proc/sys/net/ipv4/ip_forward<br />
<br />
/sbin/iptables -F<br />
/sbin/iptables -P INPUT DROP<br />
/sbin/iptables -A INPUT -p tcp -i eth1 --destination-port 25 -s ! 192.168.0.1 -j DROP<br />
<br />
/sbin/iptables -A INPUT -i eth1 -j ACCEPT<br />
/sbin/iptables -A INPUT -i eth0 -p tcp -s 0/0 --dport 25 -j ACCEPT<br />
/sbin/iptables -A INPUT -i eth2 -p tcp -s 0/0 --dport 25 -j ACCEPT<br />
/sbin/iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT<br />
/sbin/iptables -A INPUT -p tcp -i eth0 -j REJECT --reject-with tcp-reset<br />
/sbin/iptables -A INPUT -p tcp -i eth2 -j REJECT --reject-with tcp-reset<br />
/sbin/iptables -A INPUT -p udp -i eth0 -j REJECT --reject-with icmp-port-unreachable<br />
/sbin/iptables -A INPUT -p udp -i eth2 -j REJECT --reject-with icmp-port-unreachable<br />
<br />
/sbin/iptables -t nat -A POSTROUTING -o eth2 -j SNAT --to 192.168.1.222<br />
/sbin/iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to 10.0.148.48<br />
<br />
=== Setup /etc/iproute2/rt_tables ===<br />
<br />
Edit file<br />
<br />
# vi /etc/iproute2/rt_tables<br />
120 adsl<br />
121 rtrwnet<br />
123 internet<br />
<br />
<br />
<br />
<br />
<br />
<br />
==Pranala Menarik==<br />
<br />
* [[Linux Howto]]</div>
Strayermoon