[Icecast-dev] hostname resolution in libshout

["Thomas B. Rücker"]

On 11/18/2014 05:17 PM, RJ Ryan wrote:
> Totally understood -- we face similar issues on our forums.

NB: I've extracted your ticket text out of the filter logging and
created it manually.

TBR

>
> Thanks very much,
> RJ Ryan
>
> On Tue, Nov 18, 2014 at 12:15 PM, "Thomas B. Rücker"
> <thomas at ruecker.fi <mailto:thomas at ruecker.fi>> wrote:
>
>     On 11/18/2014 05:02 PM, RJ Ryan wrote:
>     > Hm, I attempted to file a ticket but was rejected:
>     >
>     > Submission rejected as potential spam
>     >
>     >   * BotScout says this is spam (Y|MULTI|IP|0|MAIL|0|NAME|2)
>     >   * StopForumSpam says this is spam (username [40])
>     >
>     > Maybe because I just registered?
>     >
>
>     No, it's an unfortunate side effect of spammers nowadays registering,
>     confirming the email address AND somehow getting past the Bayesian
>     filters.
>     I've been cycling through several configurations and services to find
>     something that doesn't produce a pile of false positives, but it looks
>     like I've failed, once again. Back to the drawing board.
>
>     Once I have 2.4.1 out, I'll have time to look at the libshout
>     issue (and
>     its counterpart).
>
>     >
>     > On Mon, Nov 17, 2014 at 12:59 PM, Ralph Giles <giles at thaumas.net
>     <mailto:giles at thaumas.net>
>     > <mailto:giles at thaumas.net <mailto:giles at thaumas.net>>> wrote:
>     >
>     >     On 2014-11-17 7:55 AM, RJ Ryan wrote:
>     >
>     >     > They are requesting that libshout "fall back" on the ipv4
>     >     resolution of
>     >     > the hostname if the ipv6 version fails to connect.
>     >
>     >     Binding only ipv4 on an dual-stack server is a deployment
>     bug, but
>     >     libshout should fall back when running on a dual-stack
>     client, as they
>     >     say. Please do file a bug.
>     >
>     >     I believe RFC 6555 describes the current best practice for this:
>     >     clients
>     >     should probe over both protocols when dns returns both ipv6
>     and ipv4
>     >     addresses and use whichever to work around breakage like this
>     >     (which can
>     >     occur at intermediate routers as well as at servers).
>     >
>     >     The http module in the opusfile library has an implementation of
>     >     this if
>     >     you want code to borrow.
>     >
>
>
>     TBR
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>
>
>
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