測試：本地機器：10.100.2.51 遠端機器：10.100.2.50 目的： 測試環境： 把本地伺服器的test2資料夾的東西移動到遠端伺服器的test2裡面 實現方法： 1， [本地機器] 用ssh-keygen生成金鑰 [[email protected] ~]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): /root/.ssh/id_rsa already exists. Overwrite (y/n)? y Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: ***********************************

[email protected]********* The key's randomart image is: +--[ RSA 2048]----+ | .o+.o=+*| | ..o. = | | .o ...+| | . .o . oo=| | S. = | | .E o | | . | | | | | +-----------------+ 2，[本地機器] 將本地的公鑰傳送到遠端機器root帳戶的.ssh目錄下 scp id_rsa.pub [email protected]:server_1 #mv server_1 .ssh/ cd .ssh/ #cat server_1 >> authorized_keys 3，[本地機器] 建立同期shell vim diff_backup.sh 測試環境 #!/bin/sh echo 開始：$(date +%Y%m%d%H%M%S) >> ./filebklog rsync -auv -e"ssh -i /root/.ssh/id_rsa" ./test2/ [email protected]:/test2/ echo 完了：$(date +%Y%m%d%H%M%S) >> ./filebklog 4、報錯對應 如果提示0755錯誤 Permissions 0755 for ‘/etc/ssh/

id_rsa’ are too open. 執行下面的語句 chmod 0644 * chmod 0600 id_rsa 5，建立任務 設定定時執行任務： crontab -e 測試環境 每隔一分鐘執行一次/root/diff_backup.sh */1 * * * * /root/diff_backup.sh 每天凌晨3點執行/root/diff_backup.sh 0 3 * * * /root/diff_backup.sh esc ： wq 重啟定時命令： service crond restart 檢視當前使用者的任務 crontab -l 檢視執行log， cat filebklog 檢視系統log tail -n 50 ~/../var/spool/mail/root