Use reverse CT for rsync for server synchronous backup and rsync server configuration

Use reverse CT for rsync for server synchronous backup and rsync server configuration

Use reverse CT to remove the delivery process to Achieve Synchronous server backup

First, install keep CT

Check whether audit CT is installed

Rpm-qa | grep tcl

Tclx-8.4.0-5.fc6

Tcl-8.4.13-4.el5

Second, install keep CT

:

Http://dl.oschina.net/soft/expect

Check the installation location of tcl

Rpm-qa | grep tcl

Tcl-devel needs to be installed

Rpm-ivh tcl-devel-8.4.13-4.el5.x86_64.rpm

Decompress the unzip CT source code package

Tar xzvf expect-5.45-1374045102000.tar.gz

Cd expect5.45/

Compile: Find the path of/usr/lib64/tclConfig. sh.

./Configure -- with-tcl =/usr/lib64/

Make

Make install

Run CT

[Root @ localhost expect5.45] # verify CT
Failed CT: error while loading shared libraries: libexpect5.45.so: cannot open shared object file: No such file or directory

Find/-name libexpect5.45.so

Ln-sf/usr/lib/expect5.45/libexpect5.45.so/usr/lib64/libexpect5.45.so

Run Secondary CT again

Expect1.1> [root @ localhost/] #

Okay.

Encryption and decryption tools

Write the CT script:

#! /Usr/bin/CT-f ################################ ########################## 1. service ip #2. user #3. userPassword #4. localPath [local path] #5. serverPath [server path] # Return Value: #0 success #1 incorrect number of parameters ############################### ########################### proc usage {}{ regsub ". */"$: argv0" "name send_user" Usage: \ n "send_user" $ name serviceip User userPassword localPath serverPath \ n "exit 1 }## determine the number of parameters if {[ll Ength $ argv]! = 5} {usage} # set the variable value set severip [lindex $ argv 0] set User [lindex $ argv 1] set userPassword [lindex $ argv 2] set localPath [lindex $ argv 3] set serverPath [lindex $ argv 4] # define whether to enter yes when marking the rsync connection as a variable to confirm set inputYes 0 # rsync-avz/etc/192.168.15.234: /home/7_8spawn rsync-avz $ {localPath }$ {User }@$ {severip }: $ {serverPath} Your CT {-nocase-re "yes/no" {send -- "yes \ r" set inputYes 1}-nocase-re "assword: "{send --" $ {userPassword} \ r "interact}-nocase-re" Connection refused "{send_error" Sftp services at $ {ftpServerIp} is not active. \ n "exit 2} timeout {send_error" Connect to sftp server $ {ftpUser }@$ {ftpServerIp} timeout (10 s ). \ n "exit 8 }}# if yes is entered, enter the password if {$ inputYes = 1} {your CT {-nocase-re" assword: "{send --" $ {userPassword} \ r "interact }}}

Remote synchronize (Rsync) is a remote data synchronization tool that can be used to synchronize files between local and remote hosts.

The advantage of rsync is that only two different parts of the file are synchronized, and the same part is not transmitted. Similar to Incremental backup,

This saves a lot of time than the scp tool for transferring backup files or Synchronizing files on the server.

Specific usage:

1. Synchronize the two directories on the local machine

$ rsync -zvr filename1 filename2

 

The above code is to synchronize the files in filename1 with the files in filename2. If you synchronize the files in filename2 to filename1, modify the code:

$ rsync -zvr filename2 filename1

Parameter description:

-Z: Enable Compression

-V details output

-R indicates Recursion

2. Use rsync-a to synchronize the retention time by tag

$ rsync -azv filename1 filename2

 

Use the preceding command to synchronize the files in filename2 at the same time as the files created in filename1,

It retains symbolic links, permissions, time tags, user names, and group names.

3. Synchronize files locally to the remote server

$rsync -avz filename1 root@192.168.0.1:/home/redhat/filename2

The above command is to synchronize local filename1 to the host of remote 192.168.0.1.

Note: If the remote host port is not the default port 22 and port 3000, change the preceding command,

$ rsync -avz '-e ssh -p 4000' filename1 root@192.168.0.1:/home/redhat/filename2

 

4. Synchronize the files on the remote server to the local device.

Similar to step 3, you only need to change the location of filename1 and the remote server,

$rsync -avz root@192.168.0.1:/home/redhat/filename2 filename1

 

Similarly, if the port is not 22, run the following command:

$ rsync -avz '-e ssh -p 4000' root@192.168.0.1:/home/redhat/filename2 filename1

How to restore data backed up by rsync file system consider using DataKeeper or Rsync 2 software to achieve real-time file backup and permission backup to meet the requirements for FTP-based data synchronization with the client
If rsync is used for Incremental backup of linux hard disk files for file synchronization, how can I back up Incremental backup !! Please advise rsync-av '-e ssh-p 22'/data/backup root@192.168.100.1:/data