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要求：配置针对单一ip的免认证 rsync 服务，环境为 centos 6.5，需要关闭 SELINUX

安装

yum install -y xinetd rsync

检查 iptables 需要使 873 端口通行

配置 xinetd

vim /etc/xinetd.d/rsync

# default: off
# description: The rsync server is a good addition to an ftp server, as it \
#	allows crc checksumming etc.
service rsync
{
	disable	= no
	flags		= IPv4
	socket_type     = stream
	wait            = no
	user            = root
	server          = /usr/bin/rsync
	server_args     = --daemon
	log_on_failure  += USERID
}

配置 rsync 配置文件

vim /etc/rsyncd.conf

max connections = 5
log file = /var/log/rsync.log
uid = nobody
gid = nobody
[web]
path = /home/ftpuser1
read only = false
hosts allow = 192.168.1.1

重启 xinetd

上面访问的路径就为 rsync -av 192.168.x.x::web .

参考:

Setup Rsync in 5 Minutes – Centos 6

如果不使用 xinetd 来做守护。创建如下目录和文件

/etc/rsyncd

├── rsyncd.conf

└── rsyncd.secrets

查看 rsyncd.conf

pid file = /var/run/rsyncd.pid
port = 873
address = 192.168.1.123
uid = root
gid = root
use chroot = yes
read only = no
hosts allow=192.168.1.0/255.255.255.0
hosts deny=*
max connections = 10
motd file = /etc/rsyncd/rsyncd.motd
log format = %t %a %m %f %b
syslog facility = local3
timeout = 300
[bbs]
path = /data/www/bbs
list=yes
ignore errors
auth users = my_name
secrets file = /etc/rsyncd/rsyncd.secrets
comment = blog

查看 rsyncd.secrets

my_name:mypass

之后要想传文件到 192.168.1.123 的 /data/www/bbs 下

客户端创建文件 /etc/sersync/rsync_password
写入
mypass
权限为 0400

执行

rsync -a -R --delete ./ --include=bbbb --exclude=* [email protected]::bbs --password-file=/etc/sersync/rsync_password

关于权限问题而不成功参考：
http://superuser.com/questions/243656/how-to-configure-and-use-rsyncd

rsyncd 的 init 文件

#! /bin/bash
#
# chkconfig:   2345 50 50
# description: The rsync daemon
#pidfile: /var/run/rsyncd.pid

# source function library
 . /etc/rc.d/init.d/functions

PROG='/usr/bin/rsync'
BASE=${0##*/}

# The config file must contain following line:
#  pid file = /var/run/rsync.pid
OPTIONS="--daemon --config=/etc/rsyncd/rsyncd.conf"

case "$1" in
  start)
    echo -n $"Starting $BASE: "
    daemon $PROG $OPTIONS
    RETVAL=$?
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$BASE
    echo
    ;;
  stop)
    echo -n $"Shutting down $BASE: "
    killproc $PROG
    RETVAL=$?
    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$BASE
    echo
    ;;
  restart|force-reload)
    $0 stop
    sleep 1
    $0 start
    ;;
  status)
    status $PROG
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|status|force-reload}" >&2
    exit 1
    ;;
esac