Rsync 实现远程同步

介绍

  rsync命令是一个远程数据同步工具,可通过LAN/WAN快速同步多台主机间的文件。rsync使用所谓的“rsync算法”来使本地和远程两个主机之间的文件达到同步,这个算法只传送两个文件的不同部分,而不是每次都整份传送,因此速度相当快。 rsync是一个功能非常强大的工具,其命令也有很多功能特色选项,我们下面就对它的选项一一进行分析说明。

常用场景一

无密码同步

服务端

1、安装rsync

[root@localhost /]# yum -y install rsync

2、新建rsyncd.conf文件

vim /etc/rsyncd.conf

#This is the rsync daemon configuration 

#global settings 
pid file = /var/run/rsyncd.pid
port = 873
lock file = /var/run/rsyncd.lock
log file = /var/log/rsync.log
gid = root
uid = root

#module settings 
[share_data]       #共享名称
path = /web/rsync/share_data    #共享路径
use chroot = no
max connections = 15
read only = yes
write only = no
list = no
ignore errors = yes
timeout = 120
保存

3、执行命令

/usr/bin/rsync --daemon
mkdir -p /web/rsync/share_data  #新建共享目录,实例中直接输入要共享文件的就好,可省去次步

客户端

1、安装rsync

[root@localhost /]# yum -y install rsync

2、输入命令进行同步

rsync -avz root@192.168.1.98:/var/space /home/hadoop/share_data
                     ↓            ↓                  ↓
                服务器IP    配置文件共享目录名     客户端收纳目录

3、限制流量同步

限制流量同步:
rsync -avz --bwlimit=50 --progress root@192.168.1.98::share_data /home/hadoop/share_data

 常用场景二

有密码同步

服务端配置

1、配置文件修改

vim /etc/rsyncd.conf

#This is the rsync daemon configuration 

#global settings 
pid file = /var/run/rsyncd.pid
port = 873
lock file = /var/run/rsyncd.lock
log file = /var/log/rsync.log
gid = root
uid = root

#module settings 
[auth_data]
path = /web/rsync/auth_data
use chroot = no
max connections = 15
read only = yes
write only = no
list = no
ignore errors = yes
timeout = 120
auth users = hadoop
secrets file = /etc/rsyncd.passwd

2、执行命令

echo "hadoop:password123" > /etc/rsyncd.passwd 
chmod 600 /etc/rsyncd.passwd
mkdir -p /web/rsync/auth_data

客户端配置

1、保存密码

echo "password123" > /home/hadoop/rsyncd.passwd 
chmod 600 /home/hadoop/rsyncd.passwd 

2、远程同步

rsync -avz --progress --password-file=/home/hadoop/rsyncd.passwd  hadoop@192.168.1.98::auth_data /home/hadoop/auth_data

或者是:

export RSYNC_PASSWORD="password123"
rsync -avz --progress hadoop@192.168.1.98::auth_data /home/hadoop/auth_data

常用场景三

写入同步

服务端

1、配置文件

vim /etc/rsyncd.conf

#global settings 
pid file = /var/run/rsyncd.pid
port = 873
lock file = /var/run/rsyncd.lock
log file = /var/log/rsync.log
gid = root
uid = root

#module settings 
[write_data]
path = /web/rsync/write_data
use chroot = no
max connections = 15
read only = no
list = no
ignore errors = yes
timeout = 120
auth users = hadoop
secrets file = /etc/rsyncd.passwd

保存

2、执行命令

mkdir -p /web/rsync/write_data

客户端

1、输入同步命令

echo "123" > /home/hadoop/write_file
export RSYNC_PASSWORD="password123"
rsync -avz --progress --delete /home/hadoop/write_file hadoop@192.168.1.98::write_data

常用场景四

限定IP或网段

服务端

1、配置文件修改

#global settings 
pid file = /var/run/rsyncd.pid
port = 873
lock file = /var/run/rsyncd.lock
log file = /var/log/rsync.log
gid = root
uid = root

#module settings 
[write_data]
path = /web/rsync/write_data
use chroot = no
max connections = 15
read only = no
list = no
ignore errors = yes
timeout = 120
auth users = hadoop
secrets file = /etc/rsyncd.passwd
hosts allow = 192.168.2.32  192.168.1.0/24

常见情景例子

指定端口

rsync -avz --port=8081 --progress /home/hadoop/auth_data hadoop@192.168.1.98::auth_data 

限速

rsync --bwlimit=100 -avz --progress /home/hadoop/auth_data hadoop@192.168.1.98::auth_data 

限速100kb/s同步数据

Rsync通过SSH传输

rsync -e "ssh -p 22"  --progress /home/hadoop/auth_data hadoop@192.168.1.98::auth_data 

本文参考:ggjucheng

更多命令参考 

客户端 https://download.samba.org/pub/rsync/rsync.html

服务端 https://download.samba.org/pub/rsync/rsyncd.conf.html

 

posted @ 2017-12-26 17:33  Old·Artist  阅读(6548)  评论(0编辑  收藏  举报