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rsync + sshによるリモート同期

Last updated at Posted at 2016-02-24

rsync + sshによるリモート同期する方法について

  • パッケージの導入
yum -y install libxml2-devel lua-devel lua-static lsyncd xinetd rdiff-backup rsync openssl
  • 同期するユーザを作る
useradd -u 666 syncuser
passwd syncuser
  • すでにある場合はそのユーザでになってホームに移動
su - syncuser
cd
  • 鍵を作る
ssh-keygen -t rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 600 ~/.ssh/authorized_keys
cp ~/.ssh/id_rsa ~/.ssh/synckey.pem
  • 鍵を互いにコピーする:[転送先]⇔[転送元]
[転送元] ※かぶらないように名前を変えて転送
scp ~/.ssh/authorized_keys syncuser@[転送先IP]:/home/syncuser/.ssh/authorized_keys2

[転送先]
cd ~/.ssh/
cat authorized_keys2 >> authorized_keys
rm authorized_keys2
  • 鍵のパーミッションを変更する
[転送元]
chmod 400 ~/synckey.pem
  • 実際に転送するコマンド

[転送元]⇒[転送先]

/usr/bin/rsync -auz -e "ssh -i ~/synckey.pem" /home/syncuser/ syncuser@[転送先IP]:/home/syncuser/

[転送先]⇒[転送元]

/usr/bin/rsync -auz -e "ssh -i ~/synckey.pem" syncuser@[転送元IP]:/home/syncuser/ /home/syncuser/

※セキュリティリスクが無く、Linuxのコマンドに慣れているなら同じauthorized_keysとid_rsaを複数の環境に適用してもいい。

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