[Haskell-cafe] Cabal and IPv6
Herbert Valerio Riedel
hvriedel at gmail.com
Sat Apr 29 07:11:33 UTC 2017
While the primary upstream doesn't have an AAAA record, one of the
mirrors does have a fully functioning AAAA record, and I'd expect
hackage-security's mirror fallback logic to fallback to that one.
If you're using a recent cabal 1.24, you will have to enable the
hackage-security capable transport by enabling the "secure" repos by
making sure the "secure: True" line is active like so in your
Starting with the soon to be released cabal 2.0 version,
hackage-security is enabled by default.
If this still doesn't work for you, please file an issue at
On Wed, Apr 26, 2017 at 11:42 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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