mount.nfs：在Ubuntu机器上安装时被服务器拒绝访问？

我有三台机器 –

machineA 10.108.24.132 machineB 10.108.24.133 machineC 10.108.24.134 

所有这些机器都安装了Ubuntu 12.04，并且我可以对这三台机器进行root访问。

现在我应该在我的上面的机器中做下面的事情 –

 Create mount point /opt/exhibitor/conf Mount the directory in all servers. sudo mount <NFS-SERVER>:/opt/exhibitor/conf /opt/exhibitor/conf/ 

我已经在上述三台机器中创build了/opt/exhibitor/conf目录。

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现在我正试图在所有这三台机器上创build一个安装点。 所以我遵循下面的过程 –

安装NFS支持文件和NFS内核服务器

 $ sudo apt-get install nfs-common nfs-kernel-server 

创build共享目录

 $ mkdir /opt/exhibitor/conf/ 

编辑/ etc / exports并添加如下所示的条目：

 # /etc/exports: the access control list for filesystems which may be exported # to NFS clients. See exports(5). # # Example for NFSv2 and NFSv3: # /srv/homes hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check) # # Example for NFSv4: # /srv/nfs4 gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check) # /srv/nfs4/homes gss/krb5i(rw,sync,no_subtree_check) # /opt/exhibitor/conf/ 10.108.24.*(rw) 

运行exportfs

 root@machineA:/# exportfs -rv exportfs: /etc/exports [1]: Neither 'subtree_check' or 'no_subtree_check' specified for export "10.108.24.*:/opt/exhibitor/conf/". Assuming default behaviour ('no_subtree_check'). NOTE: this default has changed since nfs-utils version 1.0.x exporting 10.108.24.*:/opt/exhibitor/conf 

现在我已经在machineA

 root@machineA:/# showmount -e 10.108.24.132 Export list for 10.108.24.132: /opt/exhibitor/conf 10.108.24.* 

而现在当我这样做，我得到一个错误 –

 root@machineA:/# sudo mount -t nfs 10.108.24.132:/opt/exhibitor/conf /opt/exhibitor/conf/ mount.nfs: access denied by server while mounting 10.108.24.132:/opt/exhibitor/conf 

任何想法我在这里做什么错误？

 /opt/exhibitor/conf/ 10.108.24.*(rw) 

 /opt/exhibitor/conf/ 10.108.24.0/24(rw) 

 root@machineA:/# sudo mount -t nfs 10.108.24.132:/opt/exhibitor/conf /opt/exhibitor/conf/ 

 root@machineB:/# mkdir -p /opt/exhibitor/conf root@machineB:/# sudo mount -t nfs 10.108.24.132:/opt/exhibitor/conf /opt/exhibitor/conf/ 

 root@machineC:/# mkdir -p /opt/exhibitor/conf root@machineC:/# sudo mount -t nfs 10.108.24.132:/opt/exhibitor/conf /opt/exhibitor/conf/ 

 root@machineA:/# mkdir -p /opt/exhibitor/conf2 root@machineA:/# sudo mount -t nfs 10.108.24.132:/opt/exhibitor/conf /opt/exhibitor/conf2/ 

 mount -t nfs 10.108.24.132:/opt/exhibitor/conf /opt/exhibitor/conf/ -o username=USERNAME,password=PASSWORD 

 smbpasswd -a username