Linux文件级实时复制技术

一、项目描述

Linux 文件级实时复制技术

二、系统环境&＃xff08;linux&＃xff09;天翼云

三、迁移步骤

服务端&＃xff1a;

linux下检查rsync是否安装命令&＃xff1a;

rpm -qa|grep rsync

a. 编辑配置文件

# vi /etc /rsyncd.conf

[root&＃64;ecs-c2c4 etc]# cd /etc

[root&＃64;ecs-c2c4 etc]# vi rsyncd.conf

# Minimal configuration file for rsync daemon

# See rsync(1) and rsyncd.conf(5) man pages for help

# This line is required by the /etc/init.d/rsyncd script

# GLOBAL OPTIONS

uid &＃61; root

gid &＃61; root

use chroot &＃61; no

read only &＃61; yes

#limit access to private LANs

hosts allow&＃61;49.75.185.142

hosts deny&＃61;*

max connections &＃61; 5

pid file &＃61; /var/run/rsyncd.pid

secrets file &＃61; /etc/rsyncd/rsyncd.secrets

# GLOBAL OPTIONS

uid &＃61; root

gid &＃61; root

use chroot &＃61; no

read only &＃61; yes

#limit access to private LANs

hosts allow&＃61;49.75.185.142

hosts deny&＃61;*

max connections &＃61; 5

pid file &＃61; /var/run/rsyncd.pid

secrets file &＃61; /etc/rsyncd.secrets

# Minimal configuration file for rsync daemon

uid &＃61; root

gid &＃61; root

use chroot &＃61; no

read only &＃61; yes

#limit access to private LANs

hosts allow&＃61;49.75.185.142

pid file &＃61; /var/run/rsyncd.pid

secrets file &＃61; /etc/rsyncd.secrets

#lock file &＃61; /var/run/rsync.lock

motd file &＃61; /etc/rsyncd.motd

#This will give you a separate log file

log file &＃61; /var/log/rsync.log

#This will log every file transferred - up to 85,000&＃43; per user, per sync

transfer logging &＃61; yes

log format &＃61; %t %a %m %f %b

syslog facility &＃61; local3

timeout &＃61; 300

# MODULE OPTIONS

[davidhome]

path &＃61; /opt/david/

list&＃61;yes

ignore errors

auth users &＃61; rsync

comment &＃61; David home

exclude &＃61; important/

[chinatmp]

path &＃61; /opt/china/

list&＃61;no

ignore errors

auth users &＃61;

comment &＃61; tmp_china

b. 建立/etc/ rsyncd.secrets文件

#cat /etc/ rsyncd.secrets

rsync:123456

c. 为了密码的安全性&＃xff0c;我们必须把权限设为600

# chown root:root /etc/ rsyncd.secrets

# chmod 600 /etc/rsyncd.secrets

d. 建立连接到服务器的客户端看到的欢迎信息文件/etc/rsyncd.motd

# vim /etc/rsyncd.motd

[root&＃64;ecs-c2c4 rsyncd]# more rsyncd.motd

&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43;&＃43; &＃43; wuzy Camp

服务启动方式

对于负荷较重的 rsync 服务器应该使用独立运行方式

# yum install rsync xinetd --服务安装

# /usr/bin/rsync –daemon&＃xff08;service xinetd restart&＃xff09;

# chkconfig rsync on

# netstat -ntpl | grep 873 --查看服务是否启动

测试

1、客户端

环境&＃xff1a;14.18.106.217

# yum -y install rsync

# mkdir /opt/davie /opt/china

# [root&＃64;ecs-4c54-0001 david]#

rsync -avzP --delete rsync&＃64;14.18.106.217::davidhome /opt/david/--让客户端与服务器保持完全一致&＃xff0c; --delete

-a --参数&＃xff0c;相当于-rlptgoD&＃xff0c;

-r --是递归

-l --是链接文件&＃xff0c;意思是拷贝链接文件

-i --列出 rsync 服务器中的文件

-p --表示保持文件原有权限

-t --保持文件原有时间

-g --保持文件原有用户组

-o --保持文件原有属主

-D --相当于块设备文件

-z --传输时压缩

-P --传输进度

-v --传输时的进度等信息&＃xff0c;和-P有点关系

3、通过密码文件同步

# echo "123456"> /etc/rsync.password

# chmod 600 /etc/rsync.password

# rsync -avzP --delete --password-file&＃61;/etc/rsync.password rsync&＃64;14.18.106.217::davidhome /opt/david/ --调用密码文件

4、客户端自动同步

# crontab -e

10 0 * * * rsync -avzP --delete --password-file&＃61;/etc/rsync.password rsync&＃64;14.18.106.217::davidhome /opt/david/

# crontab -l