mysql數據庫備份而且實現遠程複製

一.實現ssh 遠程登錄

機器環境:

192.167.33.108 clent 用戶:crawler

192.167.33.77 server 用戶：crawler

1.客戶端 生成密鑰

/home/crawler/.ssh/ssh-keygen

2. 查看密鑰文件權限

ls -ld ~/.ssh; ls -l ~/.ssh

3.修改文件權限

chmod 700 /home/crawler/.ssh

chmod 600 /home/crawler/.ssh/id_rsa

4.複製公鑰到服務器端

scp -r /home/crawler/.ssh/id_rsa.pub crawler@192.167.33.77:/home/crawler/.ssh

5.服務器端設置公鑰

ls -ld /home/crawler/.ssh 查看文件權限 

chmod 700 /home/crawler/.ssh 須要是drwx

ls -l /home/crawler/.ssh/*pub 查看是否有公鑰

cat /home/crawler/.ssh/id_rsa.pub >> /home/crawler/.ssh/authorized_keys //生成公鑰最好用這種方式避免替換掉以前的公鑰

chmod 644 /home/crawler/.ssh/authorized_keys //修改權限

ls -l /home/crawler/.ssh // 查看權限

6.ssh crawler@192.167.33.47 登錄成功

 

2、備份mysql數據庫

1.備份腳本(天天凌晨3點30開始備份,只保留7天的備份數據)

30 03 * * * sh /home/crawler/mysql_back_up/script/mysql-backup.sh gquan_miss8

 

rq=` date +%Y%m%d `

echo backuping $1

mysqldump -uroot -p111111 --default-character-set=utf8 --opt  --triggers -R --hex-blob --single-transaction  $1 | gzip > /home/crawler/mysql_back_up/daily/$1-all-$rq.sql.gz

find  /home/crawler/mysql_back_up/daily  -mtime +7 -name "*.sql.gz"  -exec  rm -rf {} \;

echo finished backup $1

2.rsync實現遠程備份數據增量同步(天天凌晨5點10分執行)

10 05 * * * sh /home/crawler/mysql_back_up/script/back_mysql_77.sh >> /home/crawler/mysql_back_up/script/back.log

#!/bin/sh
echo "------------------------start--------------"`date`
rsync -au --delete /home/crawler/mysql_back_up/daily/ crawler@192.168.32.77:/home/crawler/back_96_data
echo "------------------------over--------------"`date

3.測試查看服務器上面有client文件說明正確

server圖片

client 圖片