Re: Re: O2 Hoster down ?

["Matthew Norman" <mafiu@xxxxxxx>]

Can I comment that the latter part of this thread (redundancy etc) is
incredibly interesting...

Dont stop!!

Matthew

----- Original Message -----
From: "Tony Lucas" <tony@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Friday, May 09, 2003 10:38 AM
Subject: RE: [ukha_d] Re: O2 Hoster down ?


> > -----Original Message-----
> > From: Ian Willoughby [mailto:ian@xxxxxxx]
> > Sent: 09 May 2003 10:35
> > To: ukha_d@xxxxxxx
> > Subject: RE: [ukha_d] Re: O2 Hoster down ?
> >
> >
> >
> > Having TTL's set low is a bit hacky (but not too much). Surely an
> > independent load balanced DNS is better way of doing this with
bias
> > towards the primary. Load balanced DNS solutions usually (but not
> > always) have the ability to detect host availability when
> > deciding which
> > host to route traffic to.
> >
> > My 2p's worth :-)
> >
>
> Load balanced DNS is a good way to go, although ultimatly you will
still
> then have problems with ISP's not obeying the RFC's regarding dns
> caching and obeying TTL times.
>
> This was where my point came in regarding 2 servers in the same
physical
> location, as they can capture each other's ip address via something
like
> heartbeat and avoid potential outside issues like that.
>
> It all really comes down to how critical the system is, and how much
> resources are accordingly thrown at it.
>
> Regards,
>
> Tony Lucas
> Chief Executive Officer
> XCalibre Communications Ltd
> <http://www.xcalibre.co.uk>
>
>
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