rsync命令詳解

介紹

rsync命令是一個遠程數據同步工具，可經過LAN/WAN快速同步多臺主機間的文件。rsync使用所謂的「rsync算法」來使本地和遠程兩個主機之間的文件達到同步，這個算法只傳送兩個文件的不一樣部分，而不是每次都整份傳送，所以速度至關快。 rsync是一個功能很是強大的工具，其命令也有不少功能特點選項，咱們下面就對它的選項一一進行分析說明。

 

經常使用場景

無密碼同步

服務端：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

/usr/bin/rsync --daemon
mkdir -p /web/rsync/share_data

 

客戶端

rsync -avz --progress root@192.168.1.98::share_data /home/hadoop/share_data

 限制流量同步

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

 

有密碼同步

服務端  

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

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

 

 

客戶端

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

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

 

寫入同步

服務端

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

mkdir -p /web/rsync/write_data

 

客戶端

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 

 

限定IP或者網段

#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

 

常見場景例子

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同步數據

 

Rsync經過SSH傳輸

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

 

 

 

 

更多命令參考 

客戶端 https://download.samba.org/pub/rsync/rsync.html

服務端 https://download.samba.org/pub/rsync/rsyncd.conf.html