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Jing Zhao commented on HDFS-7942: --------------------------------- The patch looks good to me. +1 In the meanwhile, looks like our parse semantic will be slightly different from the traditional one. Maybe we can handle it as future work. > 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, HDFS-7942.002.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} -- This message was sent by Atlassian JIRA (v6.3.4#6332)