Rsync directory synchronization

Goals:

 

The/opt/web directory on server a is synchronized with the/opt/web directory on server B. That is, B actively synchronizes with.

 

OS: centos6.5

 

A server 192.168.189.152/opt/APP

B server 192.168.189.153/opt/APP

Use Yum to install the xinetd service (both nodes must be installed)

Yum install-y xinetd

I. A server config

 

1. The Rsync system comes with the -- deamon method to start. The service port is TCP 873.

 

2. Change disable = yes to disable = No in VI/etc/xinetd. d/rsync. The modified file is as follows:

 

# 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

}

 

3. Service xinetd restart, restart the xinted Service

 

4. Edit the main configuration file/etc/rsyncd. conf, which needs to be created by yourself.

 

VI/etc/rsyncd. conf

 

Uid = nobody

Gid = nobody

Use chroot = No

Max connections = 4

PID file =/var/run/rsyncd. PID

Lock file =/var/run/rsyncd. Lock

Log File =/var/log/rsyncd. Log

 

[App]

Path =/opt/APP

Ignore errors

Read Only = true

List = false

Hosts allow = 192.168.189.0 # allowed IP addresses

Hosts deny = 0.0.0.0/32 # IP address prohibited

Auth users = backup # authentication username, in this example, backup

Secrets file =/etc/backup. pass # authenticate the user's password file

 

5. Edit the server password file/etc/backup. Pass.

VI/etc/backup. Pass

Backup: 123456

 

6. chmod 400/etc/backup. Pass

 

II. B server config. This is the synchronization machine.

 

1. Edit the password file/etc/rsync_client.pass during rsync connection.

VI/etc/rsync_client.pass

123456 # You only need to configure the password used for connection. It must be the same as the password defined on server.

 

2. chmod 600/etc/rsync_client.pass

 

3. Use the rsync command to connect to the server for file synchronization

# Rsync-vzrtopg -- Progress -- delete -- password-file =/etc/rsync_client.pass [email protected]: APP/opt/APP

4. Use -- execlude = to exclude file suffixes that do not need to be synchronized

Rsync-vzrtopg -- Progress -- delete -- password-file =/etc/rsync_client.pass -- exclude = "*. tmp" [email protected]: APP/opt/APP

 

5. Use -- execlude-from = to Exclude directories that do not need to be synchronized.

[[Email protected] Opt] # rsync-vzrtopg -- Progress -- delete -- password-file =/etc/rsync_client.pass -- exclude-from =/opt/pcdir [email protected]: APP/opt/APP

Rsync directory synchronization