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    Command:

    NetRestrict

    
    
    

    DESCRIPTION

           There are two NetRestrict files, one for an AFS client and one for an
           AFS File Server or database server.  The AFS client NetRestrict file
           specifies the IP addresses that the client should not register with the
           File Servers it connects to.  The server NetRestrict file specifies
           what interfaces should not be registered with AFS Database Servers or
           used to talk to other database servers.
    
       Client NetRestrict
           The NetRestrict file, if present in a client machine's /etc/openafs
           directory, defines the IP addresses of the interfaces that the local
           Cache Manager does not register with a File Server when first
           establishing a connection to it. For an explanation of how the File
           Server uses the registered interfaces, see NetInfo(5).
    
           As it initializes, the Cache Manager constructs a list of interfaces to
           register, from the /etc/openafs/NetInfo file if it exists, or from the
           list of interfaces configured with the operating system otherwise.  The
           Cache Manager then removes from the list any addresses that appear in
           the NetRestrict file, if it exists. The Cache Manager records the
           resulting list in kernel memory.
    
           The NetRestrict file is in ASCII format. One IP address appears on each
           line, in dotted decimal format. The order of the addresses is not
           significant. The value 255 is a wildcard that represents all possible
           addresses in that field. For example, the value 192.12.105.255
           indicates that the Cache Manager does not register any of the addresses
           in the 192.12.105 subnet.
    
           To display the addresses the Cache Manager is currently registering
           with File Servers, use the fs getclientaddrs command.
    
       Server NetRestrict
           The NetRestrict file, if present in the /var/lib/openafs/local
           directory, defines the following:
    
           ?   On a file server machine, the local interfaces that the File Server
               (fileserver process) does not register in the Volume Location
               Database (VLDB) at initialization time.
    
           ?   On a database server machine, the local interfaces that the Ubik
               synchronization library does not use when communicating with the
               database server processes running on other database server
               machines.
    
           As it initializes, the File Server constructs a list of interfaces to
           register, from the /var/lib/openafs/local/NetInfo file if it exists, or
           from the list of interfaces configured with the operating system
           otherwise. The File Server then removes from the list any addresses
           that appear in the NetRestrict file, if it exists. The File Server
           records the resulting list in the /var/lib/openafs/local/sysid file and
           registers the interfaces in the VLDB. The database server processes use
    
    
    

    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 NETRESTRICT(5)

    
    
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