Linux File Sync Tool rsync

Rsync

Rsync is a data backup tool under Linux that supports remote synchronization and local replication.

This is a simple use of rsync article, many of Rsync's lack of understanding, more rsync knowledge please

To the Rsync website: https://rsync.samba.org/how-rsync-works.html

Rsyrsync is the system that comes with it (at least 2.6 cores are like this), if the kernel that is not compiled by itself should be self-brought.

Check for an installation Rpm-qa | grep rsync

If it is not installed, download the RPM package yourself or use Yum to install it, this is not shown here.

Configuring the Rsync Service

Vim/etc/xinetd.d/rsync

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Change disable's Yes to No

Set Rsync to boot

Chkconfig--level rsync on

Two ways to synchronize Rsync

One is one-time synchronization

One is multiple times (timed synchronization every day)

Single synchronization as long as both the server and the client turn on the rsync service

Use the rsync command to synchronize

For example:

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Enter the root password for the 15.5

This synchronizes the rsync.sh data from the 15.5 servers.

This is similar to the SCP.

The following settings are synchronized on a daily schedule

cd/etc/

mkdir RSYNCD

Touch rsyncd.conf //rsync's master configuration file

Touch RSYNCD.MOTD welcome information for//rsync

Touch Rsyncd.secrets //rsync User's password file

Vim rsyncd.secrets//file to write user and password: delimited

Kingvon:test

chmod rsyncd.secrets

Configuring the master configuration file for rsync

Vim/etc/rsyncd/rsyncd.conf

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The first half is the global setting

Port //Set the port of rsync

UID //Users running the rsync daemon

GID // the group running the rsync Daemon

Use chroot //Do not use chroot

Strict Modes //Whether to check password

Read only //Whether read-only

The lock file//Specifies the locking files that support the maximum concurrency parameter.

Log File//logfile

PID file/daemon pid files

The following is the module setup

[TMP] // Here the name of the authentication module, which needs to be specified on the client side

Path /// directories that need to be synchronized

Ignore Errors // ignore some unrelated io errors

Auth Users // authenticated user name, this user is not related to the system do not go to useradd

hosts allow // allowed host or network segment

hosts Deny // Forbidden Host or network segment

Secrets File //rsync user password file

after configuring the rsyncd.conf .

and make a connection.

Ln-s/etc/rsyncd/rsyncd.conf/etc/rsyncd.conf

Because rsync will only look for /etc/rsyncd.conf files .

If there is /etc/rsyncd.conf, and there is data inside the file

Rsync will take /etc/rsyncd.conf as the standard

If this connection is not established, rsync cannot find the configuration file

errors are prompted when synchronizing with rsync

Rsync:read error:connection Reset by Peer (104)

Rsync Error:error in Rsync protocol data Stream (code) at IO.C (759) [receiver=3.0.6]

Close or configure Iptabeles

Turn on the 873 Port or close the iptables directly

Because I'm a samba server, I'm using an internal network, so I closed the iptables before.

Client-side settings

Install rsync .

Set the rsync boot up

Edit User Password file

Vim/etc/rsyncd/ryncd.secrets

Kingvon:test

Here are Some common parameters of the rsync command

-A Archive mode to recursively transfer files and preserve properties

- R subdirectories are processed in recursive mode

- R Using relative Paths

- P maintain permissions on files

- o owners of owner files

- G group files belong to groups

- T time to hold the file (atime,ctime)

- Z Compress transfers on file transfers

--progress Transfer process at transfer time

--password-file parameters for password text

- H Show Help

More parameters please Google

Use the rsync command to synchronize

/USR/BIN/RSYNC-AZRTOPG--progress--delete [email protected]::tmp/opt/--password-file=/etc/rsyncd/rsyncd.secrets

Write a script to automate

vim/root/backup.sh

#!/bin/bash

/USR/BIN/RSYNC-AZRTOPG--progress--delete [email protected]::tmp/opt/--password-file=/etc/rsyncd/rsyncd.secrets

chmod 755 backup.sh

Crontab-e

To set the execution time

* 1 * * * /root/backup.sh

automatic synchronization at 1 points per day

This article is from the "Fly to Capetown" blog, please be sure to keep this source http://capetowns.blog.51cto.com/8244664/1689336

Linux File Sync Tool rsync