[Haskell-cafe] Cabal and IPv6

[jo at durchholz.org]

ping doesn't seem to have an ip-version-agnostic setting.
cabal could try both ping and ping6.
Question is: Why does cabal even require ping? pinging a host is useful in
network monitoring, but I have yet to see a situation where it is even
helpful to establish a connection.

> Good question! At the moment we don’t have ipv6 enabled on our cdn —
> it looks like it was only recently made available to configure that way
> for general use [1]. I’ve talked to other admins, and I hope we can just
> turn on the switch and have it work going forward. Until then, here’s
> the ipv6 address of the current origin hackage server, which can perhaps
> be used in the meantime?
>
> 2001:4800:7821:103:be76:4eff:fe04:b11a
>
> [1]Â https://www.fastly.com/blog/ipv6-fastly
>
> Cheers,
> Gershom
>
> On April 26, 2017 at 5:43:37 PM, Serguey Zefirov (sergueyz at gmail.com)
> wrote:
>> I have found that Cabal does not work on IPv6-only networks (which my
>> machine happen to be part of).
>>
>> The problem is basically this: "ping hackage.haskell.org" does not
>> resolve
>> host while "ping6 hackage.haskell.org" does. Thus cabal cannot do
>> anything
>> useful on that machine.
>>
>> Do anyone have a solution for that? I was unable to find any on the
>> internet. ;)
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