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SuSE linux NFS挂载失败案例处理:mount.nfs: access denied

热度:41   发布时间:2023-10-20 10:43:52.0

1. 环境描述

NFS server和NFS client操作系统版本:

 

 
  1. bidw2:~ # cat /etc/SuSE-release

  2. SUSE Linux Enterprise Server 11 (x86_64)

  3. VERSION = 11

  4. PATCHLEVEL = 1

 
  1. bidw2:~ # uname -a

  2. Linux bidw2 2.6.32.59-0.7-default #1 SMP 2012-07-13 15:50:56 +0200 x86_64 x86_64 x86_64 GNU/Linux

 

 

blog地址:http://blog.csdn.net/hw_libo/article/details/39521849

2. NFS client挂载时出现错误

 

 
  1. bidw2:~ # mount -t nfs -o rw,bg,hard,nointr,rsize=32768,wsize=32768,tcp,vers=3,timeo=600,actimeo=0 192.168.142.60:/filedir /filedir

  2. mount.nfs: access denied by server while mounting 192.168.142.60:/filedir


经确认过,防火墙都是关闭的,网络是正常的:

 

 

 
  1. bidw2:~ # showmount -e 192.168.142.60

  2. Export list for 192.168.142.60:

  3. /filedir 192.168.142.*

 

 

在NFS server的messages日志中有这样的提示:

 

 
  1. Sep 24 12:57:37 bidw1 mountd[17400]: refused unmount request from 192.168.142.61 for /filedir (/filedir): unmatched host

  2. Sep 24 12:57:55 bidw1 mountd[17400]: refused mount request from 192.168.142.61 for /filedir (/filedir): unmatched host

 

 

NFS server的/etc/exports配置如下:

 

 
  1. bidw1:~ # cat /etc/exports

  2.  
  3. /filedir 192.168.142.*(rw,no_root_squash,sync)


这种配置,我在SuSE 10 sp1/sp2的系统中都做过配置,NFS都是可以正常使用的,也可以正常挂载,为什么到了SuSE 11后就不行了呢?

 

 

3. 解决办法

根据以往碰到这类问题的经验,我将NFS server的配置调整为:

 

 
  1. bidw1:~ # cat /etc/exports

  2.  
  3. /filedir 192.168.142.0/24(rw,no_root_squash,sync)

 

然后重启了下NFS server:

bidw1:~ # rcnfsserver restart

再次在NFS client中进行挂载NFS时,发现挂载成功了:

 

 
  1. bidw2:~ # mount -t nfs -o rw,bg,hard,nointr,rsize=32768,wsize=32768,tcp,vers=3,timeo=600,actimeo=0 192.168.142.60:/filedir /filedir

  2. bidw2:~ # df -h

  3. Filesystem Size Used Avail Use% Mounted on

  4. /dev/sda1 127G 43G 78G 36% /

  5. devtmpfs 109G 5.0M 109G 1% /dev

  6. tmpfs 64G 26G 38G 42% /dev/shm

  7. /dev/sda3 30G 309M 28G 2% /home

  8. /dev/sda2 50G 498M 47G 2% /opt

  9. /dev/sda6 50G 18G 30G 37% /opt/oracle

  10. 192.168.142.60:/filedir

  11. 1.5T 316G 1.1T 23% /filedir


总结:

 

或许在SuSE 11系统中,已经不能使用通匹符*做匹配了,只能做精确匹配,或时使用192.168.142.0/24做网段匹配。

 

 

 

问题1:

[root@sftspstapp10 ~]# mount -t nfs 10.244.164.42:/opt/data1 /data1
mount.nfs: access denied by server while mounting 10.244.164.42:/opt/data1

查看问题1:/var/log/messages

Aug 14 19:31:57 sftspstapp08 kernel: svc: 10.244.167.148, port=755: unknown version (4 for prog 100003, nfsd)
Aug 14 19:31:57 sftspstapp08 rpc.mountd[27516]: refused mount request from 10.244.167.148 for /opt/data1 (/opt/data1): unmatched host

解决方案1:

原因为:NFS Server 只添加10.244.164网段允许NFS 挂载,并没有添加其他网段可以挂载,所以NFS Server端需要添加允许其他特定网段可挂载NFS即可。

修改前

[root@sftspstapp08 opt]# more /etc/exports 
/opt/data1 10.244.164.0/24(rw,sync)

修改后

[root@sftspstapp08 opt]# more /etc/exports 
/opt/data1 10.244.164.0/24(rw,sync)
/opt/data1 10.244.167.0/24(rw,sync)

修改后,重启NFS Server

[root@sftspstapp08 opt]#sevice nfs restart

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