#没有权限解决

［[email protected] data］# touch aa01.txt

touch： cannot touch `aa01.txt’： Permissiondenied

［[email protected] share］# ls -l /share/ -d

drwxr-xr-x. 5 root root 4096 Aug 12 21:45/share/

［[email protected] share］# chmod 777 /share

［[email protected] share］# ls -l /share/ -d

drwxrwxrwx. 5 root root 4096 Aug 12 21:45/share/

［[email protected] data］# touch aa01.txt

［[email protected] data］# ll aa01.txt

-rw-r--r-。 1 4294967294 4294967294 0 Aug 1221:50 aa01.txt

#mount过去后不再是root用户

［[email protected] share］# ll aa01.txtconfig-2.6.32-131.0.15.el6.x86_64

-rw-r--r--。 1 nfsnobody nfsnobody 0 Aug 12 21:50 aa01.txt

-rw-r--r-。 1 root root 100182 Aug 12 21:45 config-2.6.32-131.0.15.el6.x86_64

#普通用户默认不切换身份

#添加用户

［[email protected] data］# useradd zhink

#切换到普通用户

［[email protected] data］# su - zhink

#创建文件

［[email protected] data］$ touch aa02.txt

［[email protected] data］$ ll aa02.txt

-rw-rw-r-。 1 4294967294 4294967294 0 Aug 1221:57 aa02.txt

#共享目录里查看文件权限

［[email protected] share］# useradd zhink

［[email protected] share］# ll aa02.txt

-rw-rw-r-。 1 zhink zhink 0 Aug 12 21:57aa02.txt

#serv02删除用户，发现用户变成编号了

［[email protected] share］# userdel zhink -rf

［[email protected] share］# ll aa02.txt

-rw-rw-r-。 1 500 500 0 Aug 12 21:57 aa02.txt

#添加新用户，发现文件的拥有者和组又变成新添加的用户，也就是没法区分

［[email protected] share］# useradd larry

［[email protected] share］# ll aa02.txt

-rw-rw-r-。 1 larry larry 0 Aug 12 21:57aa02.txt

［[email protected] data］# touch aa03.txt

Password：

［[email protected] ~］# userdel -rf zhink

［[email protected] share］# ll aa03.txt

-rw-r--r-。 1 nfsnobody nfsnobody 0 Aug 1222:00 aa03.txt

#root用户不转换

［[email protected] share］# vim /etc/exports

［[email protected] share］# cat /etc/exports

/share *(rw，no_root_squash)

［[email protected] share］# /etc/init.d/nfs restart

Shutting down NFS mountd： ［ OK ］

Shutting down NFS daemon： ［ OK ］

Shutting down NFS services： ［ OK ］

Starting NFS services： ［ OK ］

Starting NFS daemon： ［ OK ］

Starting NFS mountd： ［ OK ］

#重新挂载

［[email protected] data］# umount /data

［[email protected] data］# mount 192.168.1.11:/share/data

#创建文件

［[email protected] data］# touch aa04.txt

#查看文件属性，发现变化成root用户

［[email protected] share］# ll aa04.txt

-rw-r--r--。 1 root root 0 Aug 12 22:03 aa04.txt

#查看帮助文件

［[email protected] share］# man exports

#远程接口调用，NFS借助此服务

［[email protected] share］# /etc/init.d/rpcbindrestart

#映射成其他用户

［[email protected] share］# id linux

uid=501(linux) gid=501(linux)groups=501(linux)

［[email protected] share］# vim /etc/exports

［[email protected] share］# cat /etc/exports

/share*(rw，all_squash，anonuid=501，anongid=501)

［[email protected] share］# /etc/init.d/nfs restart

Shutting down NFS mountd： ［ OK ］

Shutting down NFS daemon： ［ OK ］

Starting NFS services： ［ OK ］

Starting NFS daemon： ［ OK ］

Starting NFS mountd： ［ OK ］

［[email protected] /］# umount /data

［[email protected] /］# mount 192.168.1.11:/share/data

［[email protected] share］# ll aa05.txt

-rw-r--r--。 1 linux linux 0 Aug 12 22:14aa05.txt

［[email protected] data］# useradd larry

［[email protected] data］# su - larry

［[email protected] data］$ touch aa06.txt

［[email protected] share］# ll aa06.txt

-rw-rw-r--。 1 linux linux 0 Aug 12 22:15aa06.txt