마님네

LVS Setup
===============================================================================
http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/index.html 참고
http://www.linuxvirtualserver.org/VS-DRouting.html 참고


                      ┌--------┐
                      │ client │ (local or on internet)
              └--------┘
                           CIP
                           │
                        (router)
                           DGW
                           │ outside network
                           │
                           VIP
                           │
             ┌----┴----┐   
                     │ director │(director can have 1 or 2 NICs)
             └----------┘    
                      DIP (and PIP)
                           │
                           │ DRIP network
          ┌---------------┼------------------┐
          │               │                  │
          │               │                  │
         RIP1             RIP2                RIP3
    ┌------------┐ ┌------------┐ ┌------------┐
    │ realserver │ │ realserver │ │ realserver │
    └------------┘ └------------┘ └------------┘

===============================================================================

┌---------------------------------------------------------------------------┐
│Director 설정                                                              │
└---------------------------------------------------------------------------┘

1. yum install ipvsadm

2. 패킷포워딩 ON

vi /etc/sysctl.conf
-----------------------------------------------------
# Controls IP packet forwarding
net.ipv4.ip_forward = 1
-----------------------------------------------------
sysctl -p

3. VIP 세팅

ifconfig eth0:0 61.32.177.160 netmask 255.255.255.128

4. LVS 세팅

VIP:61.32.177.160 / Port:80 /스캐줄링:wlc / Gate방식
------------------------------------------------------
ipvsadm -C
ipvsadm -A -t 61.32.177.160:80 -s wlc
ipvsadm -a -t 61.32.177.160:80 -r 61.32.177.162:80 -g
ipvsadm -a -t 61.32.177.160:80 -r 61.32.177.163:80 -g
------------------------------------------------------

5. 서버리부팅시 IP 설정을 위하여 /root/ip.sh 로 저장
   ---------------------------------------------------
#!bin/sh
ifconfig eth0:0 61.32.177.160 netmask 255.255.255.128
------------------------------------------------------
vi /etc/rc.d/rc.local
------------------------------------------------------
/root/ip.sh 추가


================================================================================

┌----------------------------------------------------------------------------┐
│realserver 1  setup                                                         │
└----------------------------------------------------------------------------┘

1. yum install arptables_jf

2. arptalbes 세팅

arptables -A IN -j DROP -d 61.32.177.160
arptables -A OUT -j mangle -o eth0 -s 61.32.177.160 --mangle-ip-s 61.32.177.162

service arptalbes_jf save ==> /etc/sysconfig/arptables 에 저장

---------------------------------------------------------------------------------
# Generated by arptables-save v0.0.8 on Mon Jul 14 14:03:44 2008
*filter
:IN ACCEPT [2:56]
:OUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
[0:0] -A IN -d 61.32.177.160 -j DROP
[0:0] -A OUT -s 61.32.177.160 -o eth0 -j mangle --mangle-ip-s 61.32.177.162
COMMIT
# Completed on Mon Jul 14 14:03:44 2008
---------------------------------------------------------------------------------

3. VIP 세팅

ifconfig lo:0 61.32.177.160 netmask 255.255.255.255 broadcast 61.32.177.160 up
route add -host 61.32.177.160 dev lo:0

4. 서버리부팅시 IP 설정을 위하여 /root/ip.sh 로 저장
---------------------------------------------------------------------------------
#!bin/sh
ifconfig lo:0 61.32.177.160 netmask 255.255.255.255 broadcast 61.32.177.160 up
route add -host 61.32.177.160 dev lo:0
---------------------------------------------------------------------------------
vi /etc/rc.d/rc.local
------------------------------------------------------------------------------
/root/ip.sh 추가


=================================================================================

┌-----------------------------------------------------------------------------┐
│realserver 2  setup                                                          │
└-----------------------------------------------------------------------------┘

1. yum install arptables_jf

2. arptalbes 세팅

arptables -A IN -j DROP -d 61.32.177.160
arptables -A OUT -j mangle -o eth0 -s 61.32.177.160 --mangle-ip-s 61.32.177.163

service arptalbes_jf save ==> /etc/sysconfig/arptables 에 저장

----------------------------------------------------------------------------------
# Generated by arptables-save v0.0.8 on Mon Jul 14 14:03:44 2008
*filter
:IN ACCEPT [2:56]
:OUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
[0:0] -A IN -d 61.32.177.160 -j DROP
[0:0] -A OUT -s 61.32.177.160 -o eth0 -j mangle --mangle-ip-s 61.32.177.163
COMMIT
# Completed on Mon Jul 14 14:03:44 2008
----------------------------------------------------------------------------------

3. VIP 세팅

ifconfig lo:0 61.32.177.160 netmask 255.255.255.255 broadcast 61.32.177.160 up
route add -host 61.32.177.160 dev lo:0


4. 서버리부팅시 IP 설정을 위하여 /root/ip.sh 로 저장
----------------------------------------------------------------------------------
#!bin/sh
ifconfig lo:0 61.32.177.160 netmask 255.255.255.255 broadcast 61.32.177.160 up
route add -host 61.32.177.160 dev lo:0
----------------------------------------------------------------------------------
vi /etc/rc.d/rc.local
----------------------------------------------------------------------------------
/root/ip.sh 추가


================================================================================END