Re: IPv6 patch - Mailing list pgsql-hackers

OK, what do we ship as a default?

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Nigel Kukard wrote:
> Sorry i'm not subscribed to hackers, guess i must get soon!
> 
> 
> Anyway what i think should happen is follows, if in the configuration file
> we specify that it must bind to both ie. tcpip_socket = true, the server
> should check if first its compiled to support ipv6 (or skip this if we use
> #ifdef's) and secondly bind to what WE tell it to. If we specify TRUE it
> must try to bind to both. Ok thats the first case, the second case is if
> we specify ipv4, ie. tcpip_socket = 4. This should ONLY bind ipv4, not ipv6
> and if there is no ipv4 support on the box it should fail, not fallback.
> And finally the third case, if we specify   tcpip_socket = 6, we should
> again ONLY bind to ipv6, if there is no ipv6 support compiled, or if we
> cannot bind to the specific interface we should fail.
> 
> Thats my opinion ;)
> 
> 
> -Nigel
> 
> 
> 
> On 6 Jan 2003, Robert Treat wrote:
> 
> > On Mon, 2003-01-06 at 16:40, Bruce Momjian wrote:
> > > Peter Eisentraut wrote:
> > > > Bruce Momjian writes:
> > > The issue is that right now, there isn't any special IPv6 enabling,
> > > except for lines in pg_hba.conf.  I think it is fine to add some
> > > enabling, but we then have an additional user interface issue.  One idea
> > > I had was to change tcpip_socket from true/false to true/false/4/6 so
> > > you can specify if you want none(false)/4/6/both(true).  The original
> > > patch author wants this functionality too, so there clearly is a need
> > > for this.  This doesn't play nice with the -i flag, however.
> > >
> > 
> > Would there a downside to specifying both (enabling ipv6) on a machine
> > that doesn't support it? If not I'd suggest making -i equivalent to
> > tcp_ip_socket = true. I don't think it's too much to ask people to use
> > the preferred method to obtain maximum functionality.
> >  
> > > Also, keep in mine my BSD/OS has libraries to support IPv6, but IPv6
> > > isn't enabled in the kernel, so there is a case where HAVE_IPV6 is true,
> > > but when run, opening an IPV6 server fails and I fall back to IPv4 ---
> > > just throwing that out as a data point.  What would be our default as
> > > shipped?
> > 
> > If there is no downside to allowing both, probably both. If there is a
> > downside then ipv4, since it much more likely to be the default on OS's
> > for the next release or two.
> > 
> > Robert Treat
> > 
> > 
> > 
> > 
> 
> -- 
> 
> 
> Nigel Kukard  (Chief Executive Officer)
> Lando Technologies Africa (Pty) Ltd
> nigel@lando.co.za   www.lando.co.za
> Tel: 083 399 5822  Fax: 086 1100036
> Hoheisen Park Bellville,  Cape Town
> National  Internet Service Provider
> 
> 
>   The best language to use is the language that was designed for
>          what you want to use it for - 1997
> 
> 
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