2.6.x "cxnsleep transfer permission denied"?

[Nix]

On 25 Jan 2018, Russ Allbery uttered the following:

> Nix <nix at esperi.org.uk> writes:
>
>> Speculation: is this because I'm suddenly connecting to/from all my
>> peers via their IPv6 addresses, but they only know to grant me
>> permission to read/post over IPv4? If so, it's *really annoying* that I
>> can't turn IPv6 off temporarily until my peers have been informed of my
>> IPv6 address :(
>
> The log messages are from innfeed, so just set force-ipv4 in innfeed.conf?

I'll do that for a while to get a feed back :) The question of why
exactly when I search for 'ipv4', the clearly visible 'force-ipv4' in
the innfeed manpage is not found is between me and the less(1) author!
:/

(Though my incoming feed is fubared as well, probably for the same
reason :( it doesn't help that thanks to a DNS misconfiguration half my
IPv6 servers don't have visible AAAA addresses either!)

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