Linux服务器实现文件实时同步的方法详解

yum install -y nfs-utils rpcbind #nfs安装命令 author: herbert qq:464884492
systemctl enable nfs #将nfs设置开机启动
systemctl enable rpcbind #将rpcbind设置开机启动

mkdir /home/nfs_data # 主服务需要共享的目录 

vi /etc/exports #author: herbert qq:464884492

/home/nfs_data/ 10.2.4.52(rw,sync,no_root_squash)

systemctl stop nfs 
systemctl stop rpcbind
systemctl start rpcbind 
systemctl start nfs
showmount -e # 可以检查NFS配置是否生效
# 配置正确后,会有一下提示信息
Export list for hk51:
/home/nfs_data 10.2.4.52

firewall-cmd --add-service=nfs --permanent --zone=public
firewall-cmd --add-service=mountd --permanent --zone=public
firewall-cmd --add-service=rpc-bind --permanent --zone=public
firewall-cmd --reload #重新载入配置，使其生效

yum -y install nfs-utils 

mkdir /home/nfs_data # 从服务需要共享的目录

mount -t nfs -o sync,noac 10.2.4.51:/home/nfs_data /home/nfs_data #目录挂载

 df -h #查看挂载

vi /etc/fstab #追加内容 10.2.4.51:/home/nfs_data /home/nfs_data/ nfs sync,noac 0 0

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa  # 生成证书
cd ~/.ssh/ #切换目录
touch authorized_keys #生成认证文件
cat id_rsa.pub >>authorized_keys #复制公钥到认证文件
scp authorized_keys 10.2.4.52:/root/.ssh #远程复制自己公钥到对方服务器
service sshd restart #重启SSH服务

yum -y install inotify-tools 
yum -y install unison #author: herbert qq:464884492

mkdir /home/sync_data

#/bin/bash
dstIp="10.2.4.52"
src="/home/sync_data"
dst="/home/sync_data"
/usr/bin/inotifywait -mrq -e create,delete,modify,move $src | while read line; do
/usr/bin/unison -batch $src ssh://$dstIp/$dst
echo -n "$line " >> /var/log/inotify.log
echo `date | cut -d " " -f1-4` >> /var/log/inotify.log
done   

#/bin/bash
dstIp="10.2.4.51"
src="/home/sync_data"
dst="/home/sync_data"
/usr/bin/inotifywait -mrq -e create,delete,modify,move $src | while read line; do
/usr/bin/unison -batch $src ssh://$dstIp/$dst
echo -n "$line " >> /var/log/inotify.log
echo `date | cut -d " " -f1-4` >> /var/log/inotify.log
done  

nohup sh /home/runfilesync.sh & 
ps -aux | grep runfilesync #检查脚本是否在运行
#设置开机启动 author: herbert qq:464884492
crontab -e #追加内容  @reboot  /home/runfilesync.sh