CentOS 下配置NFS

安装APP:

yum install portmap 

yum install nfs-utils

配置/etc/exports

/home/user/Scripts 192.168.111.*(rw,async,no_root_squash)

/home/user/Scripts 192.168.0.*(rw,async,no_root_squash)

问题:

[root@CentOSSHVM ~]# exportfs -rv OR /etc/init.d/nfs restart

exportfs: No options for /home/user/Scripts 192.168.111.*: suggest 192.168.111.*(sync) to avoid warning

exportfs: No host name given with /home/user/Scripts (rw,async,no_root_squash), suggest *(rw,async,no_root_squash) to avoid warning

exporting 192.168.111.*:/home/user/Scripts

exporting *:/home/user/Scripts

[root@CentOSSHVM ~]# mount -t nfs 192.168.111.139:/home/user/Scripts /mnt/

mount.nfs: access denied by server while mounting 192.168.111.139:/home/owin/Scripts

可能是exports文件配置有问题，试着把括号前的空格去掉。

把防火墙关掉。

I googled and found that since the port is over 1024 I needed to add the "insecure" option to the relevant line in /etc/exports on the server. Once I did that (and ran exportfs -r), the mount -a on the client worked.

//如果端口号大于1024，则需要将 insecure 选项加入到配置文件（/etc/exports）相关选项中mount客户端才能正常工作:

查看 exports 手册中关于 secure 选项说明也发现确实如此

[root@lzgonline init.d]# man exports

secure,This  option requires that requests originate on an Internet port less than IPPORT_RESERVED (1024). This option is on by default. To turn it off, specify insecure.

//secure 选项要求mount客户端请求源端口小于1024（然而在使用 NAT 网络地址转换时端口一般总是大于1024的），默认情况下是开启这个选项的，如果要禁止这个选项，则使用 insecure 标识

修改配置文件/etc/exports，加入 insecure 选项

/home/lzgonline/rootfs  *(insecure,rw,async,no_root_squash)