On Monday, July 26, 2010 06:19:38 pm Muwonge Ronald wrote: > It has "side effects". > You need to get a copy of google zonefile and just edit > the A record for bot google.com and www record that's > all you need in the ISP DNS and bang all http traffc > will pass via MTN-GOOGLE > Secondly your IXP link must be good enough otherwise you > will have issues and watchout for mails to Gmail will > bounce if unplanned.
And what happens when the exchange point (or your ISP's link to it) is down and all your customer's traffic to www.google.com is getting blackholed? Yes, you could go in and fix it via DNS, but what happens to records your customers have already cached? And even though you're aggressive in the record's TTL, it means you always need to have someone on standby for the possibility of link failure to or across the exchange fabric. Risky, if I say so myself. But as my American friend would say, "I encourage my competitors to do this". Cheers, Mark.
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