[root@centos1 samba]$ tar xvf inotify-tools-3.14.tar.gz
[root@centos1 samba]$ cd inotify-tools-3.14
[root@centos1 inotify-tools-3.14]$ ./configure --prefix=/usr/local/inotify && make && make install --安装软件
[root@centos inotify-tools-3.14]# cd /usr/local/inotify/
[root@centos inotify]# ll
total 16
drwxr-xr-x. 2 root root 4096 Dec 16 16:08 bin
drwxr-xr-x. 3 root root 4096 Dec 16 16:08 include
drwxr-xr-x. 2 root root 4096 Dec 16 16:08 lib
drwxr-xr-x. 4 root root 4096 Dec 16 16:08 share
[root@centos inotify]# cd bin/
[root@centos bin]# ll
total 72
-rwxr-xr-x. 1 root root 36447 Dec 16 16:08 inotifywait
-rwxr-xr-x. 1 root root 34961 Dec 16 16:08 inotifywatch
[root@centos bin]# vim start.sh
#!/bin/sh
SRC=/home/
DST=/home/
IP=2.2.2.145
/usr/local/inotify/bin/inotifywait -mrq -e modify,delete,create,attrib ${SRC} | while read status
do
/usr/bin/rsync -auvg --delete $DST $IP:$SRC && --在后台执行
if (echo "$?" == "0");then
echo `date + %D`:back ok >> /home/1.log --在date前面有反单引号
else
echo `date +%D`:error >> /home/1.log
done
[root@centos1 bin]# chmod o+x start.sh
[root@centos1 bin]# ./start.sh &
[2] 2915
[root@centos1 bin]# ll /home/1
total 8
-rw-r--r-- 1 root root 36 Dec 16 14:40 1.txt
-rw-r--r-- 1 root root 12 Dec 16 14:34 2.txt
-rw-r--r-- 1 root root 0 Dec 17 10:58 3.txt
[root@centos1 bin]# mkdir /home/1/{1,2,3}
[root@centos1 bin]# ll /home/1
total 20
drwxr-xr-x 2 root root 4096 Dec 17 11:31 1
-rw-r--r-- 1 root root 36 Dec 16 14:40 1.txt
drwxr-xr-x 2 root root 4096 Dec 17 11:31 2
-rw-r--r-- 1 root root 12 Dec 16 14:34 2.txt
drwxr-xr-x 2 root root 4096 Dec 17 11:31 3
-rw-r--r-- 1 root root 0 Dec 17 10:58 3.txt
[root@centos1 bin]# cat /home/1.log --日志有记录，成功了
:back ok
:back ok
:back ok
:back ok
[root@centos1 bin]# --去2.2.2.145看看文件有没有同步
服务器B(ip:2.2.2.145)：用于读文件
[root@centos1 1]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 08:00:27:56:AA:AA
inet addr:2.2.2.145 Bcast:2.2.2.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe56:aaaa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:38855 errors:0 dropped:0 overruns:0 frame:0
TX packets:12226 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3390394 (3.2 MiB) TX bytes:1557639 (1.4 MiB)
[root@centos1 1]# ll /home/1 --服务器B可以看到了
total 20
drwxr-xr-x 2 root root 4096 Dec 17 11:31 1
-rw-r--r-- 1 root root 36 Dec 16 14:40 1.txt
drwxr-xr-x 2 root root 4096 Dec 17 11:31 2
-rw-r--r-- 1 root root 12 Dec 16 14:34 2.txt
drwxr-xr-x 2 root root 4096 Dec 17 11:31 3
-rw-r--r-- 1 root root 0 Dec 17 10:58 3.txt
3.unison+ssh文件双向同步,无法实现实时双向同步
1)安装unison软件
[root@centos1 samba]# tar xvf ocaml-3.12.1.tar.gz
[root@centos1 samba]# cd ocaml-3.12.1
[root@centos1 ocaml-4.01.0]# ./configure && make && make install
[root@centos1 ocaml-4.01.0]# cd ..
[root@centos1 samba]# tar xvf unison-2.40.63.tar.gz
[root@centos1 samba]# cd unison-2.40.63
[root@centos1 unison-2.40.63]# make UISTYLE=text
[root@centos1 unison-2.40.63]# mkdir /root/bin
[root@centos1 unison-2.40.63]# make install
[root@centos1 unison-2.40.63]# cp /root/bin/unison /usr/bin
2)ssh登陆不用密(在服务器1登陆服2不用密码)
[root@centos home]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
/root/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
e3:70:96:80:20:8b:e8:a9:6f:7a:00:64:5f:8b:86:90 root@centos
The key's randomart image is:
+--[ RSA 2048]----+
|... |
|E= . o |
|B o + o |
|o..+ . . . |
|.o. . S |
|o = . |
|.. . |
| .o |
|.+. |
+-----------------+
[root@centos home]# scp ~/.ssh/id_rsa.pub 2.2.2.145:/root/.ssh/authorized_keys
root@2.2.2.145's password:
id_rsa.pub 100% 393 0.4KB/s 00:00
[root@centos home]# ssh 2.2.2.145 --成功,不用输入密码
Last login: Tue Dec 17 13:25:15 2013 from centos
[root@centos1 ~]#