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From "Brandon Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7942) NFS: support regexp grouping in nfs.exports.allowed.hosts
Date Thu, 19 Mar 2015 20:12:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Li updated HDFS-7942:
-----------------------------
    Attachment: HDFS-7942.001.patch

> NFS: support regexp grouping in nfs.exports.allowed.hosts
> ---------------------------------------------------------
>
>                 Key: HDFS-7942
>                 URL: https://issues.apache.org/jira/browse/HDFS-7942
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: nfs
>    Affects Versions: 2.6.0
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>         Attachments: HDFS-7942.001.patch
>
>
> Thanks, [~yeshavora], for reporting this problem.
> Set regex value in nfs.exports.allowed.hosts property.
> {noformat}
> <property><name>nfs.exports.allowed.hosts</name><value>206.190.52.[26|23]
rw</value></property>
> {noformat}
> With this value, neither 206.190.52.26 nor 206.190.52.23 can mount nfs and act as nfs
client. In conclusion, no host can mount nfs with this regex value due to access denied error.
> {noformat}
> >$ sudo su - -c "mount -o soft,proto=tcp,vers=3,rsize=1048576,wsize=1048576,nolock
206.190.52.23:/ /tmp/tmp_mnt" root
> mount.nfs: access denied by server while mounting 206.190.52.23:/
> {noformat}



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