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XCCDF
Guide to the Secure Configuration of Ubuntu 16.04
Services
NFS and RPC
Disable All NFS Services if Possible
Disable Services Used Only by NFS
Disable Services Used Only by NFS
An XCCDF Group - A logical subset of the XCCDF Benchmark
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Disable Services Used Only by NFS
If NFS is not needed, disable the NFS client daemons nfslock, rpcgssd, and rpcidmapd.
All of these daemons run with elevated privileges, and many listen for network connections. If they are not needed, they should be disabled to improve system security posture.