Increased IP restrictions using rsync Automatic backup full configuration method _linux

First, server-side configuration:

Install Rsync
#系统一般是默认安装的
If it is not installed you can go to the installation CD (my system is CentOS4.6 so it is in the \centos\rpms\ directory of the first CD)
#配置/etc/rsyncd.conf

#系统上rsync安装后, did not create the rsyncd.conf document, the author is the rsyncd.conf document created by myself
[Root@rsync ~]#
Uid=nobody # This option specifies the UID that the daemon should have when the module transmits files. The default value is "nobody".
Gid=nobody # This option specifies the GID that the daemon should have when the module transmits files. The default value is "nobody".
Max Connections=4 # Maximum number of connections is 4
Use Chroot=no # no chroot
Log File=/var/log/rsyncd.log # Logging file
PID FILE=/VAR/RUN/RSYNCD.PID # Process ID File
Lock File=/var/run/rsyncd.lock # Specifies the locking file that supports the Max connections parameter
#auth Users=root

Hosts allow = 192.168.100.90 # which computers can access the Rsync service
Hosts Deny = 192.168.100.0/24 # which computers are not allowed to access the Rsync service

[Postfix] # Here is the Certified module name, which needs to be specified on the client side
Path=/var/mail # need to do a mirrored directory
Comment = Backup Mail # comment
Ignore errors # Ignores some irrelevant IO errors
Read Only = yes # reading only
List = no # does not allow column files
Auth users = postfix # Specify user
Secrets File=/etc/rsyncd.pwd # Authentication file name, mainly save user password, permissions set to 600, owner root, or client will error

Password file
Generate a password file on the server side/ETC/RSYNCD.PWD
[Root@rsync ~]# Echo postfix:xxx >>/etc/rsyncd.pwd
[Root@rsync ~]# chmod 600/etc/rsyncd.pwd

Start rsync
[Root@rsync ~] #rsync –daemon
[Root@rsync ~] #echo "Rsync–daemon" >>/etc/rc.d/rc.local #添加到自启动文件

Check rsync
[Root@rsync ~] #netstat-na | grep 873 #rsync The default is 873 port, unless special circumstances, generally do not modify
TCP 0 0 0.0.0.0:873 0.0.0.0:* LISTEN
TCP 0 0::: 873:::* LISTEN

Second, the client configuration:

#在本机生产密码文件
[root@client ~] #echo XXX >>/etc/rsyncd.pwd # rsync server postfix password (note: As long as the password)

#客户端备份服务器上指定模块中的数据
[root@client ~] #rsync-vzrtopg–progress–delete–password-file=/etc/rsync.pas postfix@192.168.100.1::p ostfix/home/ mail/#备份rsync服务器上postfix中模块指定文件夹 and delete content that is not on the local server
#-v,–verbose Verbose mode output
#-z,–compress compression of backed-up files on transfer
#-r,–recursive in recursive mode for subdirectories
#-t,–times Keep file time information
#-o,–owner Keep file owner information
#-p,–perms Keep file permissions
#-g,–group Keep file group information
#–progress Display Transfer Progress
#–delete deletes files that are not in the specified directory of the server module in the local backup directory
#–password-file the password from the specified file

#制定计划任务
[Root@client ~] #crontab-E
0 0 * * * Rsync-vzrtopg–progress–delete–password-file=/etc/rsync.pas postfix@192.168.100.1::p ostfix/home/mail/


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