Rsync + inotify data synchronization

Rsync+inotify

Requirements:

Synchronize 192.168.1.100 from /data/book/ to 192.168.1.101 from /data/book/

Real-time synchronization is required,

Part 1: Operate on target server 192.168.1.101

Install Rsync server on the target server

1. Close SELinux

Open firewall TCP 873 port (Rsync default port)

3. Install Rsync server software

Yum -y install rsync #

/usr/bin/rsync --daemon --config=/etc/rsyncd.conf#

  

4. Create rsyncd.conf configuration file, create rsync module, username.

/etc/rsyncd.conf # create a configuration file and add the following code

The log file = / var/log/rsyncd log

Pidfile = / var/run/rsyncd pid

Lock the file = / var/run/rsync. Lock

Secrets file = / etc/rsync. Pass

Uid = root

Gid = root

Use chroot = no

Max connections = 1200

Timeout = 600

# module 1

[book]

Path = / data/book /

Comment = the book

port=873

Read only = no

The list = no

Auth users = bookuser

Hosts allow = 192.168.1.100

Hosts deny = 192.168.21.254

: wq! # Save, exit

Parameter description:

Log file = /var/log/rsyncd.log # This file is automatically generated when rsync is started. No need to create this file in front of you

Pidfile = /var/run/rsyncd.pid = /var/run/rsyncd.pid = /var/run/rsyncd.pid

Lock file = /var/run/rsync.lock # Support Max connections

Secrets File = /etc/rsync.pass # User Authentication Configuration File, which holds the user name and password, will be created later

Motd file = /etc/rsyncd.motd #rsync file = /etc/rsyncd.motd #rsync

[home_www.osyunwei.com] # Customize name

Path = /data/book/ #rsync server data directory path

Comment = book # Module name is the same as [book] custom name

Uid = root # Set rsync to root

Gid = root # Set rsync permissions to root

Port =873 # Default port

Use chroot = no # Default to true, change to no, add backup of directory files soft connection

Read only = No # Set the rsync server file to read and write

List = no # does not display a list of rsync server resources

Max connections = 200 # Max number of connections

Timeout = 600 # Set the timeout time

Auth users = bookuser # The user name to perform data synchronization, which can be set multiple times, separated by commas in the English state

Hosts Allow = 192.168.1.100 # Allow multiple IP addresses for data synchronization, separated by commas in the English state

Hosts Deny = 192.168.21.254 # Disallow data synchronization of client IP addresses. Multiple IP addresses can be set, separated by commas in English

5. Create user authentication file

Vim /etc/rsync.pass # configuration file, add the following

BookUser :123456 # format, username: password, can be set more than one, per line username: password

: wq! # save exit

6. Set file permissions

/etc/rsyncd.conf # Set file owner access to read/write

Chmod 600 /etc/rsync.pass # Set the permissions for the file owner to read and write

Service xinetd restart

Part 2: Operating on the source server 192.168.1.100

Install the Rsync client

1. Close SELinux

Enable port 873 on firewall (default port Rsync, client Rsync can not open port 873)

3. Install Rsync client software

Yum -y install rsync xinetd

The chkconfig rsync on

/etc/init.d/xinetd start # to use xinetd to manage rsync

4. Create an authentication password file

Vi /etc/passwd.txt # Edit the file and add the following

123456 # password

:wq!  # save exit

/etc/passwd.txt # Set file permissions to read and write to the owner of the file

5. Test data synchronization between source server 192.168.1.100 and target server 192.168.1.101

The mkdir/data/testfile

Rsync-av /data/testfile bookuser@192.168.1.101::book --password-file=/etc/passwd.txt

Go to 192.168.1.101 to see if there is a testfile in /data/book/.

Part 3: Operating on the source server 192.168.1.100

Download the way

Compile the installation

Wget HTTP: / / http://github.com/downloads/rvoicilas/inotify-tools/inotify-tools-3.14.tar.gz

Tar xf way - tools - 3.14. Tar. Gz. CD way - tools - 3.14

./configure --prefix=/usr/local/inotify && make && make install

Create a script, join the background run.

vim /usr/local/inotify/inotify.sh

#! /bin/bash

#para

Host01 =192.168.1.101 # Inotify-slave IP address

SRC =/data/book # The directory to monitor locally

DST =book #inotify-slave rsync service module name

User =bookuser #inotify-slave for the virtual user of the rsync service

Rsync_passfile =/etc/passwd.txt # Password file for local invocation of rsync service

Inotify_home =/usr/local/inotify #

#judge

If [! -e "$SRC "]

[! | | -e "${rsync_passfile}"]

[! | | -e "${inotify_home} / bin/inotifywait"]

[! | | -e "/ usr/bin/rsync"].

then

Echo "Check File and Folder"

The exit 9

fi

${inotify_home} / bin/inotifywait - MRQ - timefmt '% % % % d/m/y H: % m' - the format '% T % w % f - e close_write, delete, create, attrib $ The SRC

| while read the file

do

# rsync - avzP -- delete - timeout = 100 - password - file = ${rsync_passfile} $SRC $user @ $host01: : $DST > / dev/null 2 > &1

CD $SRC && rsync aruz - R -- delete. / $user @ $host01: : $DST - password - file = ${rsync_passfile} > / dev/null 2 > &1

done

The exit 0

Chmod + x/usr/local/way/way. The sh # add execute permissions

/ usr/local/way/way. Sh & # background running this script

########### Error while loading shared libraries: libinotifytools.so.0: cannot open shared object fil file

The system could not find the library

Enter the directory

cd /usr/local/inotify/

find . -name libinotifytools.so.0

Add the file path to /usr/lib64/

ln -s /usr/local/inotify/lib/libinotifytools.so.0 /usr/lib64/

The configuration is complete, so check the data synchronization for yourself.

The source directory /data/testfile/ has a very big difference in the back of the /data/testfile/, usually did not notice, today was hit.

Without a slash, /data/testfile synchronizes subdirectories under this directory, including this directory.

After the slash, /data/testfile/, synchronize subdirectories under this directory, not including this directory.