Linux rsync environment to build (build non-ROOT)

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Linux rsync environment to build (build non-ROOT)

Preparing the Environment

• rsyncdownload

  https://rsync.samba.org/ftp/rsync/src/rsync-3.1.3.tar.gz
  

• inotifydownload

  https://github.com/rvoicilas/inotify-tools/archive/3.20.1.tar.gz
  

• Environmental Information

  Here is the structure of the two servers, respectively, hostname, ip, status, both servers are centos 6.9

  web server: 29.2.70.75

  Backup server: 29.2.70.76

Preparing to Install

Primary server

The server (i.e., that end of synchronization to the other machines), needs to be installed rsyncand inotify, web server as the server, transfer files to the backup server.

• Install rsync

  1. tar xvzf rsync-3.1.3.tar.gz
  2. cd rsync-3.1.3
  3. ./configure --prefix=/home/tomcat/opt/rsync
  4. make && make install
  

  • Create a password file authentication

    1. cd /home/tomcat/opt/rsync
    2. echo "rsync-pwd" > rsync.passwd
    

    Which rsync-pwd can set their own password, rsync.passwd name can also set up their own.

    Modify the permissions 600 chmod 600 rsync.passwd.

• Install inotify

  1. 安装autoconf，automake，libtool等工具，过程略
  2. tar xvzf inotify-tools-3.20.1.tar.gz
  3. cd inotify-tools-3.20.1
  4. ./autogen.sh
  5. ./configure --prefix=/home/tomcat/opt/inotify
  6. make && make install
  

• Creating rsync replication script

  This function is mainly to the server side of the directory / home / tomcat / tmp in the content, if you modify (either to add, modify, delete files) can be monitored via inotify, and through rsync real-time synchronization to the client's / home / tomcat / tmp, the following is achieved through the shell script, the script is as follows:

  #!/bin/bash
  host=29.2.70.76
  src=/home/tomcat/tmp/
  des=web
  user=tomcat
  /home/tomcat/opt/inotify/bin/inotifywait -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w%f%e' -e modify,delete,create,attrib $src | while read files
  do
  	/usr/bin/rsync --port=30001 -vzrtopg --delete --progress --password-file=/home/tomcat/opt/rsync/rsync.passwd $src $user@$host::$des
  	echo "${files} was rsynced" >>/home/tomcat/rsync.log 2>&1
  done
  ##如果不需要保留属性，或者保留属性需要其他权限可以去掉-vzrtopg中的pg选项
  

  This script named rsync.sh , on his specified directory, for example, I will put / home / tomcat under, and modify the permissions to 764, the specific operation is: chmod 764 rsync.shand then run the script sh /home/tomcat/rsync.sh &.

  After the note, keep in mind, only install and start the rsync rsync backup server, start rsync.sh script, otherwise it sometimes appears full screen. Otherwise, an error similar to the following:

  rsync: failed to connect to 29.2.70.76: Connection refused (111)
  rsync error: error in socket IO (code 10) at clientserver.c(107) [sender=2.6.8]
  

  We can also add this script to the boot entry (if you have permission):echo "/tmp/rsync.sh" >> /etc/rc.local

Backup Server

• Install rsync (backup server only need to install rsync)

  Ditto

• To create a user and password authentication file

  echo "tomcat:rsync-pwd" > /home/tomcat/opt/rsync/rsync.passwd

  Remember that the password file in a web end establishment, only the password, no user name; and the establishment of the backup server in the password file, the user name and password are, chmod 600 rsync.passwd, 600 permissions to copy the password file.

• Establish rsync configuration file, save it to / home / tomcat / opt / rsync / bin / directory

  use chroot = no
  max connections = 10
  strict modes = yes
  pid file = /home/tomcat/run/rsyncd.pid
  lock file = /home/tomcat/run/rsync.lock
  log file = /home/tomcat/logs/rsyncd.log
  port = 30001 #需要和主服务保持一致
  [web]
  path = /home/tomcat/tmp/ # 存放文件的目录
  comment = web file
  ignore errors
  read only = no
  write only = no
  hosts allow = 29.2.70.75
  hosts deny = *
  list = false
  #auth users = webuser
  secrets file = /home/tomcat/opt/rsync/rsync.passwd
  

  Wherein the web server is the server where the authentication module name, and the primary server in need of the same, more than my own server configuration in the configuration, for reference.

• Start rsync

  /home/tomcat/opt/rsync/bin/rsync --daemon --config=/home/tomcat/opt/rsync/bin/rsync.conf
  

  Normal master file server has changed, we can all be synchronized over.

Precautions

• If you do not modify the port, the default port need to start with the root user, because the default port is 873.