Re: DNS caching(?) page-hangup issues and Opera 10.X

On Sat, Jul 10, 2010 at 05:26:50PM -0700, Kenneth Crudup wrote:
> On Fri, 9 Jul 2010, Eirik Byrkjeflot Anonsen wrote:
> 
> > Interesting.  Now we know exactly where the problem appears.  That is
> > definitely helpful.
> 
> So, maybe they'll have some headway in the next daily? I mean, I've been
> waiting for Opera to decide it knows how to look up a hostname that it
> has already displayed *five times* before (seriously, I only hit "refresh").

I've give up with opera resolver some time ago (about 9.60 or earlier).
I have local proxy on my computer and pass all requests through it,
which works well as workaround.
Problems which I've found (most still present in 10.60):
 - sometimes address is resolved to 127.0.0.1. I've got connect error
   trying to load some page and strace shows connection to 127.0.0.1:80
   instead of proper IP (in same time "host", "dig", "w3m" and opera
   through proxy connects to correct IP). When I start apache on
   localhost it displays page from this apache!
 - different behaves on IPv4(public)+IPv6 and IPv4(private)+IPv6.
   Example: I have some hosts which are reachable by IPv6 from
   everywhere and IPv4 from restricted IPs. When I have IPv6
   connectivity - everything works as it should (connect through IPv6).
   But when I haven't - it's trying to connect by IPv4 only it this
   address is public. When I connect VPN (and the same name resolves as
   private IP - see environment below) opera fails without trying to use
   IPv4 address
 - DNS cache on opera without option to manually flush (or disable) it -
   when I switch network (or connect VPN) some hosts should resolve as
   different IP (and checking with dig it works), but opera still uses
   old addresses

Some information about my environment:
Gentoo Linux x86_64
Local bind9 (and 127.0.0.1 in /etc/resolv.conf). This is configured
mainly as forwarding (and cache-ing) DNS - for domains of connected VPNs
- forward to VPN DNS - for others - to DNS from DHCP.
I restart opera (and system) very rarely -  I'm using suspend to
RAM.

PS Sorry for my bad English...

-- 
Best Regards,
Marek Marczykowski          |   gg:2873965      | RLU #390519
marmarek at staszic waw pl  | xmpp:marmarek at staszic waw pl

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