Rsync Data Synchronization Configuration

Environment configuration

Operating system: Centos6.4_64bit

A server ip:192.168.6.128

b Server ip:192.168.6.129

On a server basis, synchronize the a server files to Server B.

The steps are as follows:

Start configuring a server

1. Install rsync on Server A

TAR-XVF rsync-3.1.1.tar.gz

CD rsync-3.1.1

Configure--prefix=/usr/local/rsync

Make && make install

2. Configuration files

Create a new Rsyncd.config under/etc/(the default/etc/does not have this file) the contents are as follows:

Uid=nobody
Gid=nobody
Use Chroot=no
Max connections=10
Strict Modes=yes
PID File=/var/run/rsyncd.pid
Lock File=/var/run/rsync.lock
Log File=/var/run/rsync.log
[Files]
Path=/data/files #要同步数据的目录
Comment=files
Ignore errors
Read Only=no
Write Only=no
Hosts allows=*
#hosts deny=192.168.6.129
List =false
Uid=root
Gid=root
Auth Users=admin #同步时用的账户
Secrets File=/etc/rsyncserver.pass #密码文件

3,/etc/under the new password file rsyncserver.pass, format: Username:password

Admin:admin

4. Give 600 permissions to the password file

chmod 600/etc/rsyncserver.pass

5. Start Rsync Service

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

A server configuration is complete!

Start Configuring B Server

1, b Server Installation rsync, method with a server

2, B Server only need to configure password file/etc/rsyncserver.pass, password to the same as a server password, format: password

3. Perform synchronous commands

/USR/LOCAL/RSYNC/BIN/RSYNC-VZRTOPG--delete--progress--exclude "*access*" [Email protected]::files/data/files-- Password-file=/etc/rsyncserver.pass

Description

V: Verbose mode output

Z: The transfer is the compressed processing of the backed up files

R: Recursively processing subdirectories

T: Keep file time information

O: Keep file owner information

P: Keep file permissions information

G: Maintain file group information

--delete: Synchronizing with a server as a benchmark

--progress: Show synchronization process

--exclude: Exclude file types that do not need to be transferred

[Email protected]::files files represents the files module configured in the Rsyncd.config configuration file

/data/files: Indicates that files are synchronized to the local/data/files directory

--password-files: Specifying a password file

Summarize:

Rsync is a full or incremental backup. There are 2 drawbacks to this type of file synchronization:

1, if the new file on the B server, the synchronization command can not be synchronized to a server, that is, the file on the B server is always greater than or equal to the file on the server.

(The--delete parameter is added to the synchronization command, and a file that does not exist on the a server is deleted during execution, and if this parameter is not added, it will not be deleted or synced to the B server)

2, the synchronization command must be made into a script to join the scheduled task, at a specific time to perform synchronous operation, can not be synchronized real-time backup.

To solve the first problem, we need to use unison software.

To solve the second problem, we need to use the rsync+inotify combination

Rsync Data Synchronization Configuration