FC5 i386 or x86_64 which way to go?

[Michael Cohen]

On Fri, Sep 22, 2006 at 10:25:31AM +0930, Adam Hawes wrote:
> > The main problem is that when ipv6 is turned on the resolver tries 
> > to resolve AAAA records before A records which means that if your 
> > DNS arhitecture does not support AAAA records (and many 
> > adsl/routers do not) it will need to time out the first query 
> > before the resolver tries for A records.
> 
> While I can see that as a problem, I have ipv6 enabled in my FC5
> box and I don't see those problems on our IPv4-only network...  It's
> snappy and efficient. Perhaps the speed/timeout issues you have seen
> before are caused by a deeper problem?
> 
> A
Adam,
   As I mentioned, its only caused if your router/dns server doesnt understand
   AAAA records properly. Those that do do not cause a a problem because they
   will let send an error message immediately, but some of the dumber dns
   servers just ignore the request if they dont understand it, forcing the
   client to retry after timeout.

   This was actually a really difficult problem to debug at first, but a good
   rule of thumb is that if the system stalls on boot its usually DNS related.

   Luckily most modern routers are starting to be smarter about it, but you
   still sometimes find a dud one here and there.

   Michael.