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Linux uses rsync remote file synchronization and backup tools teaching and learning examples __linux

-get: sudo apt-get install rsync basic usage of rsync The basic language of rsync is structured as follows: Rsync Parameters Source File file Here are a few of the most common parameters: the-v:verbose model, which outputs more detailed messages. -R: Recursive is equipped with all subdirectories and files. -A: The enclosure mode, as in the case of-rlptgod, is to be transferred to all subdirectories and files, retaining the link, the owner of the file, the group, the rights, and the time stamp

Java Generation compression diagram

); return true; } catch (IOException e) { e.printstacktrace (); return false; } } Public int[] Picscale (string source, string target, int w, int h) {File F = new file (source);Int[] arr = {0, 0};try {BufferedImage bi = imageio.read (f);BufferedImage out = null;Imgthumb scal = new Imgthumb ();arr = Getimagewidthandheight (Bi.getwidth (), Bi.getheight (), W, h);out = Scal.imagezoomout (bi, arr[0], arr[1]);File T = new file (target);Imageio.write (out, "jpg", t);} catch (IOException e) {E.pri

Using Rsync+inotify-tools to realize real-time synchronous backup of data in Linux

-AVH--port=873--progress--delete/home/www.111cn.net/home_www.111cn.net_user@192.168.21.127::home_ Www.111cn.net--password-file=/etc/passwd.txt RSYNC-AVH--port=873--progress--delete/home/www.111cn.net/home_www.111cn.net_user@192.168.21.128::home_ Www.111cn.net--password-file=/etc/passwd.txt After the operation is completed, the two target servers are 192.168.21.127,192.168.21.128 on each other, and the Ces

Jumpserver Dual-machine backup scheme

/RSYNC.PASSCchmod 600/ETC/RSYNC.PASSC②, perform data synchronization test operations:RSYNC-AVH--port=873--progress--delete [email protected]:jumpserver--password-file=/etc/rsync.passc/data/ jumpservertest/(v in-VZRTOPG in command line is Verbose,z is compression, R is RECURSIVE,TOPG is the parameter that keeps the original property of the file as owner, time. --progress is the display of detailed progress,--delete is that if the server side delete the

rsync file synchronization, Inotify-tools parameters detailed

following 2-line command on the source serverRSYNC-AVH--port=873--progress--delete/home/www.osyunwei.com/[email protected]::home_www.osyunwei.com-- Password-file=/etc/passwd.txtRSYNC-AVH--port=873--progress--delete/home/www.osyunwei.com/[email protected]::home_www.osyunwei.com-- Password-file=/etc/passwd.txtAfter the completion of the operation, respectively on the two target server 192.168.21.127,192.168.

Real-time synchronization of data in Linux under Rsync+inotify-tools

maintenance www.osyunwei.com warm reminder: qihang01 original content copyright, reproduced please indicate the source and the original link3. Installing the Rsync client softwareWhereis rsync #查看系统是否已安装rsync, the following prompt appears stating that you have installedRsync:/usr/bin/rsync/usr/share/man/man1/rsync.1.gzYum Install xinetd #只安装xinetd即可, CentOS is a xinetd to manage rsync servicesYum Install rsync xinetd #如果默认没有rsync, run this command to install rsync and xinetdVi/etc/xinetd.d/rsyn

Real-time synchronization of data in Linux under Rsync+inotify-tools

source serverRSYNC-AVH--port=873--progress--delete/home/www.osyunwei.com/[email protected]::home_www.osyunwei.com-- Password-file=/etc/passwd.txtRSYNC-AVH--port=873--progress--delete/home/www.osyunwei.com/[email protected]::home_www.osyunwei.com-- Password-file=/etc/passwd.txtAfter the completion of the operation, respectively on the two target server 192.168.21.127,192.168.21.128 view, in the/home/www.osy

Automatic real-time backup between Linux via Rsync+inotify-tools

123456#chmod 600/etc/password.txt # #设置文件权限,#rsync-AVH--port 873--progress--delete/var/www/html/[email protected]::web--password-file=/etc/password.txt # # #在 Tested on the source server and found it possible to back up the original server data to the target server#tar zxf inotify-tools-3.14.tar.gz # # # #安装inotify-tools#cd inotify-tools-3.14#./configure--prefix=/usr/local/inotify#make make InstallSet environment variables below and add soft links#ech

Using INotify to synchronize folders in real time

fs.inotify.max_user_instances=65535 : wq! #保存退出 Parameter description: Max_queued_events: INotify Queue Maximum Length, if the value is too small, there will be "* Event queue Overflow * *" error, resulting in inaccurate monitoring files Max_user_watches: How many directories are included in the file to sync, available by: Find/root/ceshi-type D | Wc-l statistics, the max_user_watches value must be guaranteed to be greater than the statistical result (here/root/ceshi is the synchronized file di

Detailed steps for real-time data synchronization using rsync and sersync in linux

/share/man/man1/rsync.1.gzYum install xinetd # Only install xinetd. in CentOS, xinetd is used to manage the rsync service.Yum install rsync xinetd # if no rsync exists by default, run this command to install rsync and xinetdVi/etc/xinetd. d/rsync # Edit the configuration file and set rsync to start at startupDisable = no # Change to no/Etc/init. d/xinetd start # start (in CentOS, xinetd is used to manage rsync services) 4. create an authentication password file Vi/etc/passwd.txt # edit the file

rsync combined with inotify real-time synchronization configuration

/rsync.passwdwebuser:password//user and password separated by semicolonsand set the 600 file properties:chmod 600/etc/rsync.passwdTo start the Rsync service:/usr/local/rsync/bin/rsync--port=873--address=192.168.121.129--daemonTo do a push test on the 192.168.121.128 (source) Host:RSYNC-AVH--delete--password-file=/etc/rsync.passwd/tmp/[email protected]::tmp#注意:/tmp directory default system is already there, if synchronization of other directories, the

Measure the test taker's knowledge about how to delete massive data files in seconds during O & M.

This article is No. 9 in the O M of chinamoocs. It is too slow to update ,, In O M, sometimes we need to delete large files, or n (n is infinite ~~) Multiple small files So, RM, Here, rocky introduces the most cute, gentle, mature, kind and kind of Linux in history. This is another method of rsync. ① Syntax: # Rsync -- delete-before-AVH -- Progress -- stats DEST SRC Explanation: When SRC and DEST are both objects [f], this indicates clearing t

How to delete massive data files in seconds

In O M, sometimes we need to delete large files, or N (N is infinite ~~) Multiple small files So, rm, Here, Rocky introduces the most cute, gentle, mature, kind and kind of Linux in history. This is another method of rsync. ① Syntax: # Rsync -- delete-before-avH -- progress -- stats DEST SRC Explanation: When SRC and DEST are both objects [f], this indicates clearing the object content rather than deleting the object. When SRC and DEST are both direc

In Centos, Rsync is configured in real-time with Inotify (used when the data volume is small)

/chmod 600/etc/passwd.txtFiLog =/opt/logs/rsync. logSrc = "/home/DemoRoot/Uploads /"Host = "8.8.8.111"Module = "home_www"/Usr/local/inotify/bin/inotifywait-mr -- timefmt '% d/% m/% y % H: % M' -- format' % T % w % F'-e close_write, modify, delete, create, attrib $ src | while read date dir file; doFILECHANGE =$ {DIR }$ {FILE}/Usr/bin/rsync-avH -- delete -- progress -- password-file =/etc/passwd.txt $ src r

Backup of Linux servers rsync

to do this is to save the important data in a top-level directory, and then copy it to the external hard disk to back up the directory with the following command:rsync-avh/home/usr/dir//media/disk/backup/If you want to ensure that locally deleted files are also deleted on the external drive, you need to use the--deleted switch as follows:RSYNC-AVH--delete/home/user/dir//media/disk/backupUse this switch wit

Example of real-time synchronization of data in Linux under Rsync+sersync

= no #修改为no /etc/init.d/xinetd start #启动 (CentOS is xinetd to manage rsync services) 4. Create the authentication password file Vi/etc/passwd.txt #编辑文件, add the following 123456 #密码 : wq! #保存退出 chmod 600/etc/passwd.txt #设置文件权限, only set the file owner to have read, write permission 5, test the source server 192.168.21.129 to the two target server 192.168.21.127,192.168.21.128 data synchronization between Mkdir/home/www.111cn.net/ceshi #在源服务器上创建测试文件夹, and then run the following 2-line co

Rsync+inotify+lvs implementation of Discuz load balancing

Install mysql-server #安装mysql数据库service mysqld start #启动mysql服务iptables-F #清空iptables规则mysql-uroot-p-e ' Create dat Abase discuzdatabase; ' #创建discuz数据库mysql-uroot-p-e ' Grant all on discuzdatabase.* to [email protected] '% ' identified by ' Youpass '; "#创建discuz用户并赋予管理discuzdatabase的权限mysql-uroot-p-e ' flush privileges; ' #刷新mysql权限To configure the Web service:# #注意事项: Due to some of the mechanisms of rsync+inotify, it is first fully configured on the RS1 discuz in the use of rsync synchroniza

Real-time data synchronization using rsync + inotify in Linux

vi/etc/sysctl. confFs. inotify. max_queued_events = 99999999Fs. inotify. max_user_watches = 99999999Fs. inotify. max_user_instances = 65535Parameter description:Max_queued_events:The maximum length of the inotify Queue. If the value is too small, the "** Event Queue Overflow **" error will occur, resulting in inaccurate monitoring files.Max_user_watches:Directory of the file to be synchronized. Avoid the failure caused by this value being too small, especially when there are many smal

Linux ssh telnet/scp remote copy file/rsync Remote synchronization command automatic login

program, SCP is the meaning of security copy , the commands commonly used by SCP are:[Plain]View PlainCopy Scp/path/to/source [email protected]:/path/to/local # #本地赋值到远程 SCP [email protected]:/path/to/source/path/to/local # #远程复制到本地 The Rsync command is a remote synchronization program that, compared to the SCP, can back up files at minimal cost, backing up only the files that are different, so that each backup is a lot less time, and in addition to its own protocol on the tra

MongoDB a tutorial on backup and recovery with the command line tools that come with it _mongodb

records, but instead repeats them (if possible).This method is time-consuming when the volume of data is large.backing up data files directly MONGO 127.0.0.1:27017/db_to_back--eval "Db.fsynclock ()" RSYNC-AVH--delete/path/to/your/mongofile/path/to/ backup/folder/ MONGO 127.0.0.1:21001/turbo--eval "Db.fsyncunlock ()" The key is two commands in the first and third lines, and for Db.fsynclock (), the MongoDB documentation Db.fsyncl

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