小知识：rsync 数据同步使用详解

rsync

(d)服务端启动两种方式

1.daemon 2.xinetd inetd

启动后绑在 TCP/873 端口

% cat /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

socket_type = stream

wait = no

user = root

server = /usr/bin/rsync

server_args = —daemon

log_on_failure += USERID

}

配置 注意设置读写权限属主

% cat /etc/rsyncd.conf

motd file = /var/log/rsync/welcome.msg

pid file = /var/log/rsync/rsyncd.pid

lock file = /var/log/rsync/rsync.lock

log file = /var/log/rsync/rsyncd.log

[rsyncwww]

comment = rsync www

path = /var/www/

use chroot = no

max connections = 4

read only = false

list = true

uid = nobody

gid = nobody

auth users = wwwuser

secrets file = /etc/rsyncd.secrets

hosts allow = 1.1.1.1,2.2.2.2

hosts deny = 0.0.0.0/0

ignore errors = yes

transfer logging = yes

log format = “%a %f %l”

#log format = “%o %h [%a] %m (%u) %f %l”

[rsyncroot]

comment = rsync root

path = /

use chroot = no

max connections = 4

read only = true

#read only = false

list = true

uid = root

gid = root

auth users = rootuser

secrets file = /etc/rsyncd.secrets

hosts allow = 1.1.1.1,2.2.2.2

hosts deny = 0.0.0.0/0

ignore errors = yes

transfer logging = yes

log format = “%a %f %l”

rsyncd.secrets 一行一个用户 用户名:密码 格式

使用

rsync -auvPz –progress dir1 dir2

rsync -ztruvoglpD –progress dir1 dir2

rsync -ztruvoglpD –progress dir1/ dir2

rsync -ztruvoglpD –progress dir1/file1 dir2

如果不想包含某个目录/文件可以设置–exclude

远程使用

rsync 1.1.1.1:: 只列list

rsync user@1.1.1.1::

rsync user@1.1.1.1::module

rsync user@1.1.1.1::module/path

如果没有配置rsync server 可以通过 ssh 方式使用

rsync -e ssh -auvPz 1.1.1.1:/etc ./

同步时注意注意 / 最后的问题

不放/ 则目录名也包含mirror

放 / 则只有目录里面的东西mirror了

rsync -ztruvoglp –progress user@1.1.1.1::module/path ./

为了脚本调用方便 还可以调用 –password-file 同样注意属主权限

也可以设置环境变量RSYNC_PASSWORD=访问含用户认证的rsync