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Re: Limiting rpc.lockd to IPv4 only

>       -4  Use IPv4 only, whether IPv6 is available or not
>       -6  Use both IPv4 and IPv6 if IPv6 is available;  silently
>           use IPv4 only if IPv6 is not available (default)

> Any objections or comments?

For what it may be worth, this is not what I'd naïvely expect -4 and -6
to mean.  What I'd expect is

-4      Use v4 only, error if unavailable.
-6      Use v6 only, error if unavailable.
neither Use both, silently dropping whatever's unavailable.
both    Use both, error if either unavailable.

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