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        <title>1st</title>
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        <description>1st

基本

lvs

	&quot; Linux Virtual Server（LVS）プロジェクトは、レイヤ4スイッチングを利用して、Webサーバやメールサーバなどのネットワーク・サービスの負荷分散を可能にします。&quot;

&lt;http://ultramonkey.sourceforge.jp/papers/lvs_tutorial/html/&gt;

keepalived</description>
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        <title>arp</title>
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        <description>arp

ARP（アープ）

TCP/IPネットワークでイーサネットフレームを送信するには、あて先のMACアドレスを指定する必要がある。ARPは、MACアドレスをあて先のIPアドレスから求めるためのプロトコル。</description>
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        <title>environment</title>
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        <description>lvs構築

	*  インストール

yum install --exclude=*.i386 ipvsadm iproute curl keepalived

	*  arp

less /etc/sysctl.conf
 net.ipv4.conf.lo.arp_ignore = 1
 net.ipv4.conf.lo.arp_announce = 2
 net.ipv4.conf.eth0.arp_ignore=1
 net.ipv4.conf.eth0.arp_announce=2
sysctl -p</description>
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        <title>environment_2013_01_24</title>
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        <description>lvs構築 ～2013/01/24～

	*  その他のライブラリインストール


# yum -y install openssl-devel


	*  ダウンロード


# cd /usr/src/redhat/SOURCES/
# wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz


	*  解凍


# tar xzvf keepalived-1.2.7.tar.gz 
# cd keepalived-1.2.7</description>
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        <description>ipvsadm

rpmパッケージ作成～インストール

公式サイトから適応したバージョンのsrcRPMを取得する。

	*  シンボリックリンク作成

make時にkernelソースを見に行くため、作成していないとエラーとなる。</description>
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        <title>sample001</title>
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        <description>keepalived.confのサンプル


! Configuration File for keepalived

global_defs {
   notification_email {
     test@corp-ltd.jp
   }
   notification_email_from error_reporting@corp-ltd.jp
   smtp_server localhost
   smtp_connect_timeout 30
}

vrrp_instance WEB {
    state BACKUP
    interface eth0
    garp_master_delay 5
    virtual_router_id 1
    priority 100
    nopreempt
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.…</description>
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