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i-generationコンテンツ同期手順
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----------------------------------------------------------------------------
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■コンテンツ同期ポリシー
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・rsyncで1分間隔で同期
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・ソースはweb1→web2への一方向同期とする（双方向同期はファイル競合のリスクがあるため）
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・stat系ログファイルはweb2→web1へ同期（運営者管理画面からweb2のログを参照できるようにするため）
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・運営者管理画面はweb1へアクセス（画像更新、設定ファイルの更新はweb1のみ）
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http://web1.i-generation.jp/admin/
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.htaccessでhttp://i-generation.jp/admin/はhttp://web1.i-generation.jp/admin/へリダイレクト
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■同期対象ディレクトリ
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/www/aff/ad/*
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/www/aff/admin/*
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/www/aff/db/*
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/www/aff/home/*
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/www/aff/lib/*
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/www/aff/mail/*
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/www/aff/maintenance/*
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/www/aff/set/*
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/www/aff/stat/*
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/www/aff/sync/*
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/www/aff/user/*
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■同期対象外ディレクトリ
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/www/aff/log/*
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/www/aff/stat/log/*
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/www/aff/stat/*.log
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■rsync設定
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----------------------------------------------------------------------------
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[web1]
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rsync用ユーザー作成
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$ /usr/sbin/adduser web_sync
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$ passwd web_sync
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password: Gnxi34C8
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$ su - web_sync
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$ ssh-keygen -t rsa
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Generating public/private rsa key pair.
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Enter file in which to save the key (/home/web_sync/.ssh/id_rsa): ENTER
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Enter passphrase (empty for no passphrase): ENTER
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Enter same passphrase again: ENTER
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Your identification has been saved in /home/web_sync/.ssh/id_rsa.
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Your public key has been saved in /home/web_sync/.ssh/id_rsa.pub.
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44
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The key fingerprint is:
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19:00:74:dd:ee:b2:fd:6b:49:68:76:27:b8:76:49:bb web_sync@web1.localdomain
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46
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$ scp /home/web_sync/.ssh/id_rsa.pub admin@192.168.2.103:/home/admin
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$ su -
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$ vi /etc/ssh/sshd_config
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以下3行コメントはずす
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RSAAuthentication yes <--- SSH v1
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PubkeyAuthentication yes <--- SSH v2
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AuthorizedKeysFile .ssh/authorized_keys
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$ /sbin/service sshd restart
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----------------------------------------------------------------------------
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[web2]
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$ /usr/sbin/adduser web_sync
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$ passwd web_sync
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password: Gnxi34C8
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$ su - web_sync
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$ ssh-keygen -t rsa
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Generating public/private rsa key pair.
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Enter file in which to save the key (/home/web_sync/.ssh/id_rsa): ENTER
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Enter passphrase (empty for no passphrase): ENTER
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Enter same passphrase again: ENTER
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Your identification has been saved in /home/web_sync/.ssh/id_rsa.
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Your public key has been saved in /home/web_sync/.ssh/id_rsa.pub.
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The key fingerprint is:
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19:00:74:dd:ee:b2:fd:6b:49:68:76:27:b8:76:49:bb web_sync@web1.localdomain
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$ scp /home/web_sync/.ssh/id_rsa.pub admin@192.168.2.101:/home/admin
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web1への接続確認
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$ ssh web_sync@192.168.2.101
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$ su -
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$ vi /etc/ssh/sshd_config
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以下3行コメントはずす
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RSAAuthentication yes <--- SSH v1
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PubkeyAuthentication yes <--- SSH v2
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AuthorizedKeysFile .ssh/authorized_keys
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$ /sbin/service sshd restart
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$ cat /home/admin/id_rsa.pub >> /home/web_sync/.ssh/authorized_keys
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$ chown web_sync:web_sync /home/web_sync/.ssh/authorized_keys
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$ chown -R web_sync:web_sync /www/aff/
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[web1]
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$ cat /home/admin/id_rsa.pub >> /home/web_sync/.ssh/authorized_keys
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$ chown web_sync:web_sync /home/web_sync/.ssh/authorized_keys
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----------------------------------------------------------------------------
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■同期スクリプトパーミッション設定
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[web1]
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$ cd /www/aff/sync/
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$ chown web_sync:web_sync *.sh
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103
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$ chmod 4744 *.sh
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104
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■ログ同期用ディレクトリ作成
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[web1]
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$ mkdir /www/aff/log/web2
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$ chmod a+w /www/aff/log/web2
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109
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■同期確認
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[web1]
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$ cd /www/aff/sync/
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$ ./content_rsync_test.sh
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Agent pid 29373
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Enter passphrase for /home/web_sync/.ssh/id_rsa:
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Identity added: /home/web_sync/.ssh/id_rsa (/home/web_sync/.ssh/id_rsa)
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building file list ... done
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118
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test.txt
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119
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120
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sent 90 bytes received 42 bytes 264.00 bytes/sec
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121
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total size is 0 speedup is 0.00
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122
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Agent pid 29373 killed
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123
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124
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----------------------------------------------------------------------------
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125
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■初回同期処理
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126
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$ cd /www/aff/sync/
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127
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$ ./content_rsync_init.sh
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128
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129
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----------------------------------------------------------------------------
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130
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■実運用
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131
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[web1]
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132
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$crontab -e
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* * * * * $WEB_DIR/sync/content_rsync.sh > $WEB_DIR/sync/content_rsync.log 2>&1
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134
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135
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[web2]
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136
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$crontab -e
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137
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stat系以外は全てコメントアウト
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138
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* * * * * $WEB_DIR/sync/log_rsync.sh > $WEB_DIR/sync/log_rsync.log 2>&1
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139
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140
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141
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