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This article mainly introduces "how to use BUP to back up web files under Linux". In the daily operation, I believe that many people have doubts about how to use BUP to back up web files under Linux. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to use BUP to back up web files under Linux". Next, please follow the editor to study!

In the Linux system operation, sometimes need to back up web files on the Linux system, and backup web files generally use Git software to back up, today the editor will introduce the next Git-based software-BUP, together to learn how to use BUP to back up web files.

BUP is not just Git, but a software based on Git. In general, I use rsync to back up my files and have been working well so far. The only drawback is that the file cannot be restored to a specific point in time. So I started looking for alternatives and found BUP, a git-based software that stores data in a warehouse and has the option to recover the data to a specific point in time.

To use BUP, you first initialize an empty repository and then back up all files. When BUP completes a backup, it creates a restore point that you can restore to later. It also creates an index of all files, including the file's properties and verification and. When it comes to the next backup, BUP compares the properties of the file with the checksum, saving only the changed data. This can save a lot of space.

Install BUP (passed the test on Centos 6 & 7)

First make sure that you have installed the RPMFORGE and EPEL repositories

[techarena51@vps ~] $sudo yum groupinstall "Development Tools" [techarena51@vps ~] $sudo yum install python python-devel [techarena51@vps ~] $sudo yum install fuse-python pyxattr pylibacl [techarena51@vps ~] $sudo yum install perl-Time-HiRes [techarena51@vps ~] $git clone git://github.com/bup/bup [techarena51@vps ~] $cd bup [techarena51@vps ~] $make [techarena51@vps ~] $make test [techarena51@vps ~] $sudo make install

On CentOS 7, there may be errors when you run "make test", but you can continue to run "make install".

The first step is to initialize an empty repository, just like git.

[techarena51@vps ~] $bup init

By default, bup stores the warehouse in "~ / .bup", but you can change the setting by setting the environment variable "export BUP_DIR=/mnt/user/bup".

Then, create an index of all files. This index, as mentioned earlier, stores a series of files and their properties and git target id (sha1 hash table). (properties include soft links, permissions, and immutable bytes)

Bup index / path/to/filebup save-n nameofbackup / path/to/file#Example [techarena51@vps ~] $bup index / var/www/htmlIndexing: 7973, done (4398 paths/s). Bup: merging indexes (7980techarena51@vps 7980), done. [techarena51@vps ~] $bup save-n techarena51 / var/www/htmlReading index: 28, done.Saving: 100.00% (4max 4k, 28max 28 files), done.bloom: adding 1 file (7 objects). Receiving index from server: 1268Univer 1268 Done.bloom: adding 1 file (7 objects).

"BUP save" divides all the content into blocks and stores them as objects. The "- n" option specifies the backup name.

You can view the backup list and backed up files.

[techarena51@vps] $bup lslocal-etc techarena51 test#Check for a list of backups available for my site [techarena51@vps] $bup ls techarena512014-09-24-064416 2014-09-24-071814 latest#Check for the files available in these backups [techarena51@vps] $bup ls techarena51/2014-09-24-064416/var/www/htmlapc.php techarena51.com wp-config-sample.php wp-load.php

Backing up files on the same server is never a good choice. BUP allows you to back up web files remotely, but you must make sure that your SSH key and BUP are installed on the remote server.

Bup index path/to/dirbup save-r remote-vps.com-n backupname path/to/dir

Example: backup "/ var/www/html" folder

[techarena51@vps ~] $bup index / var/www/html [techarena51@vps ~] $bup save-r user@remotelinuxvps.com:-n techarena51 / var/www/htmlReading index: 28, done.Saving: 100.00% (4files 4k, 28files), done.bloom: adding 1 file (7 objects). Receiving index from server: 1268 adding 1268, done.bloom: adding 1 file (7 objects).

Restore backup

Log in to the remote server and enter the following command

[techarena51@vps] $bup restore-C. / backup techarena51/latest#Restore an older version of the entire working dir elsewhere [techarena51@vps ~] $bup restore-C / tmp/bup-out / testrepo/2013-09-29-195827#Restore one individual file from an old backup [techarena51@vps ~] $bup restore-C / tmp/bup-out / testrepo/2013-09-29-201328/root/testbup/binfile1.bin

The only drawback is that you can't restore files to another server. You have to copy files manually through SCP or rsync.

View backups through an integrated web server.

Bup web#specific portbup web: 8181

You can use the shell script to run bup and create a scheduled task that runs every day.

#! / bin/bashbup index / var/www/html bup save-r user@remote-vps.com:-n techarena51 / var/www/html

At this point, the study on "how to use BUP to back up web files under Linux" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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