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Guide to the Secure Configuration of Oracle Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • NFS and RPC

    The Network File System is a popular distributed filesystem for the Unix environment, and is very widely deployed. This section discusses the circ...
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  • Uninstall nfs-utils Package

    The nfs-utils package can be removed with the following command: 
    $ sudo yum erase nfs-utils
    Rule Low Severity
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  • Disable All NFS Services if Possible

    If there is not a reason for the system to operate as either an NFS client or an NFS server, follow all instructions in this section to disable sub...
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  • Disable netfs if Possible

    To determine if any network filesystems handled by netfs are currently mounted on the system execute the following command: <pre>$ mount -t nfs,nfs...
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  • Disable Network File Systems (netfs)

    The netfs script manages the boot-time mounting of several types of networked filesystems, of which NFS and Samba are the most common. If these fil...
    Rule Unknown Severity
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  • Disable Services Used Only by NFS

    If NFS is not needed, disable the NFS client daemons nfslock, rpcgssd, and rpcidmapd. <br><br> All of these daemons run with elevated privileges, a...
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  • Disable rpcbind Service

    The rpcbind utility maps RPC services to the ports on which they listen. RPC processes notify rpcbind when they start, registering the ports they a...
    Rule Low Severity
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  • Configure All Systems which Use NFS

    The steps in this section are appropriate for all systems which run NFS, whether they operate as clients or as servers.
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  • Configure NFS Services to Use Fixed Ports (NFSv3 and NFSv2)

    Firewalling should be done at each host and at the border firewalls to protect the NFS daemons from remote access, since NFS servers should never b...
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  • Configure NFS Clients

    The steps in this section are appropriate for systems which operate as NFS clients.
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