Shulou(Shulou.com)06/02 Report--

1.1 View environment 1.1.1 the environment of the backup server

[root@backup nfsbackup] # uname-a

Linux backup 2.6.32-696.el6.x86_64 # 1 SMP Tue Mar21 19:29:05 UTC 2017 x86 "64 GNU/Linux

Status of iptables

[root@backup nfsbackup] # / etc/init.d/iptables status

Iptables: Firewall is not running.

Status of XElinux

[root@backup nfsbackup] # getenforce

Disabled

Check to see if the rsync service starts

[root@backup nfsbackup] # ss-lntup | grep "rsync"

Tcp LISTEN 0 5: 873: * users: ("rsync", 1294pr. 5)

Tcp LISTEN 0 5 *: 873 *: * users: ("rsync", 1294 pr. 3)

Check the directory of the push is module nfsbackup

[nfsbackup]

Path = / nfsbackup/

Ignore errors

Read only = false

List = false

Hosts allow = 172.16.1.0 Compact 24

# hosts deny = 0.0.0.0amp 32

Auth users = rsync_backup

Secrets file = / etc/rsync.password

1.1.2 nfs server side

[root@nfs01] # uname-a

Linux nfs01 2.6.32-696.el6.x86_64 # 1 SMP Tue Mar 2119 SMP Tue Mar 2915 05 UTC 2017 x86 "64 GNU/Linux

Iptables statu

[root@nfs01 ~] # / etc/init.d/iptables status

Iptables: Firewall is not running.

XElinux statu

[root@nfs01 ~] # getenforce

Disabled

The shared directory we use is nfsbackup

[root@nfs01] # showmount-e

Export list for nfs01:

/ app/r 172.16.1.0/24

/ app/w 172.16.1.0/24

/ data 10.0.0.0/24

/ www 172.16.1.0/24

/ nfsbackup 172.16.1.0/24

Check to see if inotify is available, if there is no download

[root@nfs01 ~] # rpm-qa inotify-tools

Inotify-tools-3.14-1.el6.x86_64

Download method

Yum install inotify-tools-y

Note: inotify-tools belongs to epel source.

View epel

[root@nfs01 ~] # yum repolist

Loaded plugins: fastestmirror, security

Loading mirror speeds from cached hostfile

* base:mirrors.aliyun.com

* epel:mirrors.aliyun.com

* extras:mirrors.aliyun.com

* updates:mirrors.aliyun.com

Repo id repo name status

Base CentOS-6-Base-mirrors.aliyun.com 6706

Epel Extra Packages for Enterprise Linux6-x86mm 64 12350

Extras CentOS-6-Extras-mirrors.aliyun.com 45

Updates CentOS-6-Updates-mirrors.aliyun.com 383

Repolist: 19484

Change method (change to Ali's source)

# change the default yum source of the system to domestic

Http://mirrors.aliyun.com/

Mv / etc/yum.repos.d/CentOS-Base.repo/etc/yum.repos.d/CentOS-Base.repo.backup

Wget-O / etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

# # extended yum Source-Supplementary

Epel Source-fedora

Wget-O / etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

Complete in one step:

Mv / etc/yum.repos.d/CentOS-Base.repo/etc/yum.repos.d/CentOS-Base.repo.backup

Wget-O / etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

Wget-O / etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

Our goal is to push the / nfsbackup module to the backup module on the backup side whenever there is a file or directory change on the NFS side, keeping it up-to-date in real time.

1.2 nfs server setup 1.2.1 creation script

1. Use inotify to monitor the changes of directories and files in / nfsbackup

2. Use the while loop to push the changes of directories and files in / nfsbackup to the nfsbackup module of the backup server

Vim watch.sh

#! / bin/bash

IP= `hostname-i`

NFSBP=/nfsbackup/

# Monitor the change of / nfsbackup and send it to while for line-by-line execution

Inotifywait-mrq $NFSBP-- format "% w% f"-e create,delete,close_write,moved_to | while read line

Do

Rsync-aLz-- delete $NFSBP rsync_backup@172.16.1.41::nfsbackup/$IP/--password-file=/etc/rsync.password

# push the $line file to nfsbackup under 172.16.1.41

Done

1.2.2 testing requires multiple windows

Window 1, [root@nfs01 scripts] # / bin/bash / server/scripts/watch.sh

Window 2, [root@nfs01 nfsbackup] # touch {1.. 4} .log

[root@nfs01 nfsbackup] # echo "Great" > a.txt

Window 3, [root@backup nfsbackup] # ll 172.16.1.31 /

Total 0

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:381.log

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:382.log

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:383.log

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:384.log

[root@backup nfsbackup] # ll 172.16.1.31/

Total 4

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:381.log

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:38 2.log

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:383.log

-rw-r--r-- 1 rsync rsync 0 Jun 28 16:384.log

-rw-r--r-- 1 rsync rsync 7 Jun 28 16:40a.txt

[root@backup nfsbackup] # cat172.16.1.31/a.txt

Greatness

1.2.3 add to boot self-startup

Echo'/ bin/bash / server/scripts/watch.sh & / etc/rc.local

View

[root@nfs01 scripts] # tail-1 / etc/rc.local

/ bin/bash / server/scripts/watch.sh &

Note: & means to execute in the background.

[root@nfs01 scripts] # jobs

[1] + Running / bin/bash/server/scripts/watch.sh &

[root@nfs01 nfsbackup] # jobs-p View the process number of the background command

3362

[root@nfs01 nfsbackup] # kill 3362 the process of deleting this process number

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