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Comment: Re:Incorrect premise (Score 1) 945

by CerebusUS (#30891440) Attached to: The Apple Paradox, Closed Culture & Free-Thinking Fans

if android really takes off (and it seems to be starting that roll around now, given the number of devices coming out), that may change, as the dev environment is java based and so can be run on top of just about anything that can handle a java VM.

Which still makes a Mac a better platform for a developer who wants to write code on multiple platforms. JavaVM? great. OS X / OS X mobile? done. Windows .NET? Virtualbox / Fusion to the rescue. Web/php/python/mysql/whatever? It's all available.

Comment: Re:Simple method to provide HA to static websites (Score 1) 298

by CerebusUS (#27039171) Attached to: Best Solution For HA and Network Load Balancing?

How do browsers behave when 1 of the server goes down?

Half the DNS lookups will still point at the failed server. Since most browsers cache the dns lookup, they will not re-request the IP address, and will just assume the site is down.

If you rely on DNS round-robin records, you need to either ensure that they are always up (i.e. each one is an HA cluster) or that you can remove them quickly enough to cause your users as little pain as possible. (TTL should probably be 1 minute, and you'll want an automated method of removing the bad entry from the zone file)

Networking

+ - Help troubleshooting a DNS issue

Submitted by CerebusUS
CerebusUS (21051) writes "I believe I'm seeing a problem with a specific top-level DNS server, and I'm not sure how to fix it.

Specifically, if I do this dig:
dig @a0.org.afilias-nst.info isc.org

it's supposed to return the authoritative name servers for isc.org, but it frequently doesn't for the machines on my network. I've tried it from an Amazon EC2 instance and don't see any problems from there, but I can't figure out why there would be a difference based on where I perform the query from.

What should I be looking at next? If it is indeed an issue with that particular server, how would I report it?"

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