linux rysnc命令详解

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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

无密码同步

服务端配置文件：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]

path = /web/rsync/share_data

use chroot = no

max connections = 15

read only = yes

write only = no

list = no

ignore errors = yes

timeout = 120

服务器端执行命令

/usr/bin/rsync --daemon

mkdir -p /web/rsync/share_data

客户端

rsync -avz --progressroot@192.168.1.98::share_data /home/hadoop/share_data

限制流量同步

rsync -avz --bwlimit=50 --progressroot@192.168.1.98::share_data /home/hadoop/share_data

有密码同步

服务端配置文件

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

[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

服务器端执行命令

echo "hadoop:password123" >/etc/rsyncd.passwd

chmod 600 /etc/rsyncd.passwd

mkdir -p /web/rsync/auth_data

客户端

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

chmod 600 /home/hadoop/rsyncd.passwd

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

或者是

exportRSYNC_PASSWORD="password123"

rsync -avz --progresshadoop@192.168.1.98::auth_data /home/hadoop/auth_data

写入同步

服务端配置文件

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

服务器端执行命令

mkdir -p /web/rsync/write_data

客户端

echo "123" >/home/hadoop/write_file

exportRSYNC_PASSWORD="password123"

rsync -avz --progress --delete/home/hadoop/write_file hadoop@192.168.1.98::write_data

限定IP或者网段

#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

文章来源

http://www.cnblogs.com/ggjucheng/p/5474038.html

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