Sshd + rsync for Data Synchronization

How sshd + rsync achieves data synchronization is simple

The client connects to the server through sshd, and the server synchronizes data to the client

First, check the kernel information of the server.

Server

[Root @ server ~] # Uname-
Linux server.test.com 2.6.18-194. el5 #1 SMP Tue Mar 16 21:52:43 EDT 2010 i686 i686 i386 GNU/Linux

Client

[Root @ client ~] # Uname-
Linux client.test.com 2.6.18-194. el5 #1 SMP Tue Mar 16 21:52:43 EDT 2010 i686 i686 i386 GNU/Linux

First, the client and the server both need to configure the yum source. Here I use the local yum Source

Install rsync and xinetd services

[Root @ server ~] # Yum install rsync xinetd-y

[Root @ client ~] # Yum install rsync xinetd-y

Modify/etc/xinetd/

[Root @ server ~] # Vi/etc/xinetd. d/rsync

Change disable = yes to disable = no

Restart the xinetd service.

[Root @ server ~] #/Etc/init. d/xinetd restart
Stopping xinetd: [OK]
Starting xinetd: [OK]

The client server performs the same operation.

Both client and server ssh services are enabled.

[Root @ server ~] #/Etc/init. d/sshd restart
Stopping sshd: [OK]
Starting sshd: [OK]

On server

[Root @ server/] # mkdir/data
[Root @ server/] # cd/data
[Root @ server data] # mkdir server
[Root @ server data] # cd server/
[Root @ server] # pwd
/Data/server

[Root @ server] # du-sh test.rar
249 M test.rar

Upload a file test.rar to the server.

Create a new file

[Root @ server] # touch tt
[Root @ server] # ls
Test.rar tt

Next, create the corresponding folder on the client.

[Root @ client ~] # Mkdir/data
[Root @ client ~] # Mkdir/data/backup

Check the data synchronization status on the client

[Root @ client/] # cd/data/backup/
[Root @ client backup] # ls
Test.rar tt
[Root @ client backup] # ll
Total 254452
-Rw-r -- 1 root 260296040 Jan 25 2014 test.rar
-Rw-r -- 1 root 0 Jan 25 09: 46 tt

The server deletes data and the client deletes data synchronously.

[Root @ client server] # rsync-av -- delete 192.168.1.110:/data/server/data/backup/
Root@192.168.1.110's password:
Processing ing file list... done
Deleting server/test.rar
Deleting server/
Deleting tt
./


Sent 26 bytes converted ed 76 bytes 22.67 bytes/sec
Total size is 260296040 speedup is 2551921.96

Server ssh service replaces other ports for Data Synchronization

[Root @ server ~] # Vim/etc/ssh/sshd_config

[Root @ server ~] # Service sshd restart
Stopping sshd: [OK]
Starting sshd: [OK]