#!/bin/sh
ipvsadm -C
ipvsadm -A -t 129.0.3.236:80 -s wlc
ipvsadm -a -t 129.0.3.236:80 -r 129.0.3.233 -g
ipvsadm -a -t 129.0.3.236:80 -r 129.0.3.234 -g

./configure  --prefix=/you/path/　
make && make install

net.ipv4.conf.lo.arp_ignore = 1
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2

ip addr add 129.0.3.236/32 dev lo

Sep 12 05:32:58 server230 kernel: IPVS: Registered protocols (TCP, UDP, AH, ESP)
Sep 12 05:32:58 server230 kernel: IPVS: Connection hash table configured (size=4096, memory=32Kbytes)
Sep 12 05:32:58 server230 kernel: IPVS: ipvs loaded.
Sep 12 06:00:35 server230 kernel: IPVS: [wlc] scheduler registered.
Sep 12 06:00:38 server230 Keepalived: Starting Keepalived v1.1.15 (09/12,2008)
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Using MII-BMSR NIC polling thread...
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Netlink reflector reports IP 129.0.3.230 added
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Registering Kernel netlink reflector
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Registering Kernel netlink command channel
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Opening file '/etc/keepalived/keepalived.conf'.
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Configuration is using : 11811 Bytes
Sep 12 06:00:38 server230 Keepalived_healthcheckers: IPVS: Service already exists
Sep 12 06:00:38 server230 Keepalived_healthcheckers: IPVS: Destination already exists
Sep 12 06:00:38 server230 Keepalived_healthcheckers: IPVS: Destination already exists
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Activating healtchecker for service [129.0.3.233:80]
Sep 12 06:00:38 server230 Keepalived_healthcheckers: Activating healtchecker for service [129.0.3.234:80]
Sep 12 06:00:38 server230 Keepalived: Starting Healthcheck child process, pid=10650
Sep 12 06:00:38 server230 Keepalived_vrrp: Using MII-BMSR NIC polling thread...
Sep 12 06:00:38 server230 Keepalived: Starting VRRP child process, pid=10651
Sep 12 06:00:38 server230 Keepalived_vrrp: Netlink reflector reports IP 129.0.3.230 added
Sep 12 06:00:38 server230 Keepalived_vrrp: Registering Kernel netlink reflector
Sep 12 06:00:38 server230 Keepalived_vrrp: Registering Kernel netlink command channel
Sep 12 06:00:38 server230 Keepalived_vrrp: Registering gratutious ARP shared channel
Sep 12 06:00:38 server230 Keepalived_vrrp: Opening file '/etc/keepalived/keepalived.conf'.
Sep 12 06:00:38 server230 Keepalived_vrrp: Configuration is using : 36198 Bytes
Sep 12 06:00:39 server230 Keepalived_vrrp: VRRP sockpool: [ifindex(2), proto(112), fd(8,9)]
Sep 12 06:00:40 server230 Keepalived_vrrp: VRRP_Instance(VI_1) Transition to MASTER STATE
Sep 12 06:00:41 server230 Keepalived_vrrp: VRRP_Instance(VI_1) Entering MASTER STATE
Sep 12 06:00:41 server230 Keepalived_vrrp: VRRP_Instance(VI_1) setting protocol VIPs.
Sep 12 06:00:41 server230 Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 129.0.3.236
Sep 12 06:00:41 server230 Keepalived_healthcheckers: Netlink reflector reports IP 129.0.3.236 added
Sep 12 06:00:41 server230 avahi-daemon[8014]: Registering new address record for 129.0.3.236 on eth0.
Sep 12 06:00:41 server230 Keepalived_vrrp: Netlink reflector reports IP 129.0.3.236 added
Sep 12 06:00:42 server230 Keepalived_healthcheckers: Removing service [129.0.3.234:80] from VS [129.0.3.236:80]
Sep 12 06:00:42 server230 Keepalived_healthcheckers: Remote SMTP server [127.0.0.1:25] connected.
Sep 12 06:00:43 server230 Keepalived_healthcheckers: SMTP alert successfully sent.
Sep 12 06:00:46 server230 Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 129.0.3.236

#service pulse start

# ifconfig tunl0 192.168.18.240 netmask 255.255.255.255 broadcast 192.168.18.240 up

# route add -host 192.168.18.240 dev tunl0

#echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
#echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce

#service pulse start

#ifconfig lo:0 192.168.18.240 broadcast 192.168.18.240 netmask 255.255.255.255 up
#route add -host 192.168.18.240 dev lo:0

#echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
#echo 1 > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
#echo 2 > /proc/sys/net/ipv4/conf/tunl0/arp_announce

#service pulse start

[root@askwan bin]# .$ZEUSHOME/web/bin/registerwithadminserver

DRBD is a block device which is designed to build high availability clusters. This is done by mirroring a whole block device via (a dedicated) network. You could see it as a network raid-1.

#cp drbd-8.2.5.tar.tar /usr/src/
#cd /usr/src/
#tar -zxvf drbd-8.2.5.tar.tar
#cd drbd-8.2.5
#make clean
#make KDIR=/usr/src/kernels/2.6.9-42.EL-smp-i686/
#make install

global {
usage-count yes;
}


common {
  syncer { rate 10M; }
}

resource askwan {

  protocol      C;
  startup { wfc-timeout 0; degr-wfc-timeout     120; }
  disk { on-io-error detach; }
  syncer { rate 10M; }


  on server5{

    device      /dev/drbd0;
    disk        /dev/sdb1;

    address     192.168.1.124:44444;

    meta-disk   internal;
  }


  on server6 {
    device      /dev/drbd0;
    disk        /dev/sdb1;
    address     192.168.1.125:44444;
    meta-disk   internal;
  }
}

#drbdadm create-md all

#/etc/init.d/drbd start

#drbdadm — –overwrite-data-of-peer primary all

#mkfs.ext3 /dev/drbd0

#mkdir /askwandata
#mount /dev/drbd0 /askwandata

[root@server5 ~]# cat /proc/drbd
version: 8.2.5 (api:88/proto:86-88)
GIT-hash: 9faf052fdae5ef0c61b4d03890e2d2eab550610c build by root@server6, 2008-04-23 21:20:43
0: cs:Connected st:Primary/Secondary ds:UpToDate/UpToDate C r---
    ns:392 nr:1077344 dw:1077736 dr:97 al:2 bm:64 lo:0 pe:0 ua:0 ap:0
        resync: used:0/31 hits:65194 misses:64 starving:0 dirty:0 changed:64
        act_log: used:0/127 hits:96 misses:2 starving:0 dirty:0 changed:2

[root@server6 ～]# cat /proc/drbd
version: 8.2.5 (api:88/proto:86-88)
GIT-hash: 9faf052fdae5ef0c61b4d03890e2d2eab550610c build by root@server5, 2008-04-23 21:12:34
0: cs:Connected st:Secondary/Primary ds:UpToDate/UpToDate C r---
    ns:4 nr:392 dw:33612 dr:1044285 al:13 bm:74 lo:0 pe:0 ua:0 ap:0
        resync: used:0/31 hits:65194 misses:64 starving:0 dirty:0 changed:64
        act_log: used:0/127 hits:8292 misses:13 starving:0 dirty:0 changed:13

#wget http://haproxy.1wt.eu/download/1.3/src/haproxy-1.3.14.4.tar.gz

#tar  –zxvf  haproxy-1.3.14.4.tar.gz
#tar zxvf haproxy-1.3.14.4..tar.gz
#mv  haproxy-1.3.14.4  haproxy
#cd haproxy
#make TARGET=linux26  

global
        chroot /var/chroot/haproxy
        daemon
        gid     501
        log 127.0.0.1 local3
        nbproc  2
        pidfile /var/run/haproxy-private.pid

        ulimit-n        65535
        user    haproxy
        maxconn         32000
        spread-checks           4
        tune.maxaccept          8
        tune.maxpollevents      100


defaults askwan
        log     global
        mode    http
        option  httplog
        option  dontlognull
        log 127.0.0.1 local3
        retries 3
        option redispatch
        maxconn 32000
        contimeout      5000
        clitimeout      50000
        srvtimeout      50000


listen  askwan  0.0.0.0:80
        appsession JSESSIONID len 52 timeout 3h
        cookie SRV insert indirect nocache
        mode http
        stats enable
        stats hide-version
        stats uri /haproxy-stats
        stats realm Haproxy\ statistics
        stats auth askwan:askwan
        stats refresh 3s
        monitor-uri /haproxy_test
        balance roundrobin
        option httpclose
        option forwardfor
        option httpchk HEAD /index.html HTTP/1.0

        server server1 192.168.1.101:80 check inter 2000  
        server server2 192.168.1.102:80 check inter 2000
        server server3 192.168.1.103:80 check inter 2000
        server server4 192.168.1.104:80 check inter 2000

#!/bin/sh
#
# chkconfig: - 85 15
# description: HA-Proxy is a TCP/HTTP reverse proxy which is particularly suited \
#              for high availability environments.
# processname: haproxy
# config: /etc/haproxy/haproxy.cfg
# pidfile: /var/run/haproxy.pid

# Script Author: Simon Matter
# Version: 2004060600

# Source function library.
if [ -f /etc/init.d/functions ]; then
  . /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ] ; then
  . /etc/rc.d/init.d/functions
else
  exit 0
fi

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

# This is our service name
BASENAME=`basename $0`
if [ -L $0 ]; then
  BASENAME=`find $0 -name $BASENAME -printf %l`
  BASENAME=`basename $BASENAME`
fi

[ -f /etc/$BASENAME/$BASENAME.cfg ] || exit 1

RETVAL=0

start() {
  /usr/sbin/$BASENAME -c -q -f /etc/$BASENAME/$BASENAME.cfg
  if [ $? -ne 0 ]; then
    echo "Errors found in configuration file, check it with '$BASENAME check'."
    return 1
  fi

  echo -n "Starting $BASENAME: "
  daemon /usr/sbin/$BASENAME -D -f /etc/$BASENAME/$BASENAME.cfg -p /var/run/$BASENAME.pid
  RETVAL=$?
  echo
  [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$BASENAME
  return $RETVAL
}

stop() {
  echo -n "Shutting down $BASENAME: "
  killproc $BASENAME -USR1
  RETVAL=$?
  echo
  [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$BASENAME
  [ $RETVAL -eq 0 ] && rm -f /var/run/$BASENAME.pid
  return $RETVAL
}

restart() {
  /usr/sbin/$BASENAME -c -q -f /etc/$BASENAME/$BASENAME.cfg
  if [ $? -ne 0 ]; then
    echo "Errors found in configuration file, check it with '$BASENAME check'."
    return 1
  fi
  stop
  start
}

check() {
  /usr/sbin/$BASENAME -c -q -V -f /etc/$BASENAME/$BASENAME.cfg
}

rhstatus() {
  status $BASENAME
}

condrestart() {
  [ -e /var/lock/subsys/$BASENAME ] && restart || :
}

# See how we were called.
case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    restart
    ;;
  reload)
    restart
    ;;
  condrestart)
    condrestart
    ;;
  status)
    rhstatus
    ;;
  check)
    check
    ;;
  *)
    echo $"Usage: $BASENAME {start|stop|restart|reload|condrestart|status|check}"
    exit 1
esac

exit $?

global_defs {
   notification_email {
     askwan@yahoo.com
   }
   notification_email_from askwan@askwan.com
   smtp_server 192.168.1.3
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass askwan
    }
    virtual_ipaddress {
        192.168.1.150
    }

Apr 22 08:32:22 db1 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:32:22 db1 Keepalived: daemon is already running
Apr 22 08:32:24 db1 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:32:24 db1 Keepalived: daemon is already running
Apr 22 08:32:46 db1 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:32:46 db1 Keepalived: daemon is already running
Apr 22 08:37:42 db1 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:37:42 db1 Keepalived: daemon is already running
Apr 22 08:39:34 db1 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:39:34 db1 Keepalived: daemon is already running
Apr 22 08:41:20 db1 sshd(pam_unix)[6317]: session opened for user root by root(uid=0)
Apr 22 08:41:32 db1 Keepalived: Terminating on signal
Apr 22 08:41:32 db1 Keepalived_vrrp: Terminating VRRP child process on signal
Apr 22 08:41:32 db1 Keepalived: Stopping Keepalived v1.1.15 (04/22,2008)
Apr 22 08:42:03 db1 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:42:03 db1 Keepalived_vrrp: Using MII-BMSR NIC polling thread...
Apr 22 08:42:03 db1 Keepalived_vrrp: Registering Kernel netlink reflector
Apr 22 08:42:03 db1 Keepalived_vrrp: Registering Kernel netlink command channel
Apr 22 08:42:03 db1 Keepalived_vrrp: Registering gratutious ARP shared channel
Apr 22 08:42:03 db1 Keepalived: Starting VRRP child process, pid=6358
Apr 22 08:42:03 db1 Keepalived_vrrp: Opening file '/usr/local/keepalived/etc/keepalived/keepalived.conf'.
Apr 22 08:42:03 db1 Keepalived_vrrp: Configuration is using : 33290 Bytes
Apr 22 08:42:03 db1 Keepalived_vrrp: VRRP sockpool: [ifindex(2), proto(112), fd(7,8)]
Apr 22 08:42:04 db1 Keepalived_vrrp: VRRP_Instance(VI_1) Transition to MASTER STATE
Apr 22 08:42:05 db1 Keepalived_vrrp: VRRP_Instance(VI_1) Entering MASTER STATE
Apr 22 08:42:05 db1 Keepalived_vrrp: VRRP_Instance(VI_1) setting protocol VIPs.
Apr 22 08:42:05 db1 Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 192.168.1.150
Apr 22 08:42:10 db1 Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 192.168.1.150

Apr 20 08:43:28 db2 Keepalived: Starting Keepalived v1.1.15 (04/22,2008)
Apr 22 08:43:28 db2 Keepalived_vrrp: Using MII-BMSR NIC polling thread...
Apr 22 08:43:28 db2 Keepalived_vrrp: Registering Kernel netlink reflector
Apr 22 08:43:28 db2 Keepalived_vrrp: Registering Kernel netlink command channel
Apr 22 08:43:28 db2 Keepalived_vrrp: Registering gratutious ARP shared channel
Apr 22 08:43:28 db2 Keepalived: Starting VRRP child process, pid=5857
Apr 22 08:43:28 db2 Keepalived_vrrp: Opening file '/usr/local/keepalived/etc/keepalived/keepalived.conf'.
Apr 22 08:43:28 db2 Keepalived_vrrp: Configuration is using : 36052 Bytes
Apr 22 08:43:28 db2 Keepalived_vrrp: VRRP_Instance(VI_1) Entering BACKUP STATE
Apr 22 08:43:28 db2 Keepalived_vrrp: VRRP sockpool: [ifindex(2), proto(112), fd(7,8)]