rsync命令是一個遠端資料同步工具，可通過LAN/WAN快速同步多臺主機間的檔案。rsync使用所謂的“rsync演算法”來使本地和遠端兩個主機之間的檔案達到同步，這個演算法只傳送兩個檔案的不同部分，而不是每次都整份傳送，因此速度相當快。 rsync是一個功能非常強大的工具，其命令也有很多功能特色選項，我們下面就對它的選項一一進行分析說明。
常用場景
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
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