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    Command:

    fs_exportafs

    
    
    
    

    SYNOPSIS

           fs exportafs -type <exporter name>
               [-start <start/stop translator (on | off)>]
               [-convert <convert from afs to unix mode (on | off)>]
               [-uidcheck <run on strict 'uid check' mode (on | off)>]
               [-submounts <allow nfs mounts to subdirs of /afs/.. (on | off)>]
               [-help]
    
           fs exp -t <exporter name>
               [-st <start/stop translator (on | off)>]
               [-c <convert from afs to unix mode (on | off)>]
               [-u <run on strict 'uid check' mode (on | off)>]
               [-su <allow nfs mounts to subdirs of /afs/.. (on | off)>]
               [-h]
    
    
    

    DESCRIPTION

           The fs exportafs command sets (if the -start argument is provided) or
           reports (if it is omitted) whether the machine can reexport the AFS
           filespace to clients of a non-AFS file system. To control certain
           features of the translation protocol, use the following arguments:
    
           ?   To control whether the UNIX group and other mode bits on an AFS
               file or directory are set to match the owner mode bits when it is
               exported to the non-AFS file system, use the -convert argument.
    
           ?   To control whether tokens can be placed in a credential structure
               identified by a UID that differs from the local UID of the entity
               that is placing the tokens in the structure, use the -uidcheck
               argument. The most common use is to control whether issuers of the
               knfs command can specify a value for its -id argument that does not
               match their local UID on the NFS/AFS translator machine.
    
           ?   To control whether users can create mounts in the non-AFS filespace
               to an AFS directory other than /afs, use the -submounts argument.
    
    
    

    OPTIONS

           -type <exporter name>
               Names the alternate file system to which to reexport the AFS
               filespace. The only acceptable value is "nfs", in lowercase letters
               only.
    
           -start on =item -start off
               Enables the local machine to reexport the AFS filespace if the
               value is "on", or disables it if the value is "off". Omit this
               argument to report the current setting for all of the configurable
               parameters.
    
           -convert on =item -convert off
               Controls the setting of the UNIX group and other mode bits on AFS
               files and directories exported to the non-AFS file system. If the
               value is "on", they are set to match the owner mode bits. If the
                   pointless to include the -id argument to the knfs command,
                   because the only acceptable value (the issuer's local UID) is
                   already used when the -id argument is omitted.
    
                   Enabling UID checking also makes it impossible to issue the
                   klog and pagsh commands on a client machine of the non-AFS file
                   system even though it is a system type supported by AFS. For an
                   explanation, see klog(1).
    
               ?   If the value is off (the default), tokens can be assigned to a
                   local UID in the non-AFS file system that does not match the
                   local UID of the entity assigning the tokens.
    
                   With respect to the knfs command, it means that the issuer can
                   use the -id argument to assign tokens to a local UID on the NFS
                   client machine that does not match his or her local UID on the
                   translator machine. (An example is assigning tokens to the MFS
                   client machine's local superuser "root".) This setting allows
                   more than one issuer of the knfs command to make tokens
                   available to the same user on the NFS client machine. Each time
                   a different user issues the knfs command with the same value
                   for the -id argument, that user's tokens overwrite the existing
                   ones. This can result in unpredictable access for the user on
                   the NFS client machine.
    
           -submounts on =item -submounts off
               Controls whether a user of the non-AFS filesystem can mount any
               directory in the AFS filespace other than the top-level /afs
               directory. If the value is "on", such submounts are allowed. If the
               value is "off", only mounts of the /afs directory are allowed. If
               this argument is omitted, the default value is "off".
    
           -help
               Prints the online help for this command. All other valid options
               are ignored.
    
    
    

    OUTPUT

           If the machine is not even configured as a server of the non-AFS file
           system, the following message appears:
    
              Sorry, the <file_system>-exporter type is currently not supported on
              this AFS client
    
           If the machine is configured as a server of the non-AFS file system but
           is not currently enabled to reexport AFS to it (because the -start
           argument to this command is not set to "on"), the message is as
           follows:
    
              '<file_system>' translator is disabled
    
           If the machine is enabled to reexport AFS, the following message
           precedes messages that report the settings of the other parameters.
    
           The following messages indicate that the -submounts argument is set to
           "on" or "off" respectively:
    
              Allow mounts of /afs/.. subdirs
              Only mounts to /afs allowed
    
    
    

    EXAMPLES

           The following example shows that the local machine can export AFS to
           NFS client machines.
    
              % fs exportafs nfs
              'nfs' translator is enabled with the following options:
                   Running in convert owner mode bits to world/other mode
                   Running in no 'passwd sync' mode
                   Only mounts to /afs allowed
    
           The following example enables the machine as an NFS server and converts
           the UNIX group and other mode bits on exported AFS directories and
           files to match the UNIX owner mode bits.
    
              % fs exportafs -type nfs -start on -convert on
    
           The following example disables the machine from reexporting AFS to NFS
           client machines:
    
              % fs exportafs -type nfs -start off
    
    
    

    PRIVILEGE REQUIRED

           The issuer must be logged in as the local superuser root.
    
    
    

    SEE ALSO

           klog(1), knfs(1)
    
    
    

    COPYRIGHT

           IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
    
           This documentation is covered by the IBM Public License Version 1.0.
           It was converted from HTML to POD by software written by Chas Williams
           and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
    
    
    

    OpenAFS 2012-03-26 FS_EXPORTAFS(1)

    
    
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