rsync 資料同步使用詳解

rsync(d)服務端啟動兩種方式
1.daemon 2.xinetd inetd
啟動後綁在 TCP/873 連接埠

% 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 注意設定讀寫權限屬主
% 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 一行一個使用者 使用者名稱:密碼 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
如果不想包含某個目錄/檔案可以設定--exclude

遠程使用
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
如果沒有配置rsync server 可以通過 ssh 方式使用
rsync -e ssh -auvPz 1.1.1.1:/etc ./

同步時注意注意 / 最後的問題
不放/ 則目錄名也包含mirror
放 / 則只有目錄裡面的東西mirror了

rsync -ztruvoglp --progress user@1.1.1.1::module/path ./
為了指令碼調用方便 還可以調用 --password-file 同樣注意屬主許可權
也可以設定環境變數RSYNC_PASSWORD=訪問含使用者認證的rsync