Linux NFS mount: failed, reason given by server: Permission denied
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The problem was that the special nfsd file system that mounts to /proc/fs/nfsd wasn't mounted. I'm not sure how it gets mounted (maybe rc.sysinit does it?), but I tool the advice from the forum entry and added an entry to /etc/fstab Novell迷，迷Novell
none /proc/fs/nfsd nfsd auto,defaults 0 0
then ran mount -a
After this the mount worked fine. I hope that someone finds this helpful. 本文来自Novell迷网站 http://novell.me
另注意:像 mount -t nfs 10.167.18.250:/home/ /mnt/share/
ip地址前不需要加双斜框//！
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另一案例：
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在网上查了一些资料，有人说把/etc/exports换成域名试试，所以我就改成了：
[root@ha1 nfs]# cat /etc/exports
/nfs/mp3/mp3files *.xxxxxx.com(rw,async)
再mount，发现正常，没有问题了。后来又查了一些相关资料，才知道：
nfs server接到客户端的mount时，会先客户的IP做反解成域名，用域名(注意是用域名而不是ＩＰ)去和/etc/exports做比较，如果匹配不成功会失败。
而我做了域名反解后，并没有更新/etc/exports内的ＩＰ为域名。所以匹配不到对应的域名，自然就出现mount: 192.168.1.172:/nfs/mp3/mp3files failed, reason given by server: Permission denied的错误了。
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