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 Post subject: Web Access Conundrum
PostPosted: Wed Oct 13, 2010 10:31 pm 
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Near Ground
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Joined: Wed Sep 02, 2009 10:38 pm
Posts: 6782
Location: Chattanooga, TN
Heya...'nother question here...

My boss called me tonight with a problem I'd not seen before. He has an iMac at his home that will not access our company website. I've tried accessing it with three different browsers (Chrome, Safari, and Firefox), and all just spin for a while and then give a "server not found" error page.

He has other computers in his home that can access it just fine. No other website seems to be affected. Our website has three or four parked domains, and none of them are accessible, along with the root domain. Other domains on that same Sitegrounds account are perfectly accessible.

His router is completely open, the computer itself has no firewall set up, he's accessing from an admin account, it seems to ping the root site, I've checked the site backend itself, and it's not blocking any access...

I'm absolutely at a loss. The problem is so damned specific, and neither he nor I can figure out what the hell is going on.

Any ideas?


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PostPosted: Wed Oct 13, 2010 11:32 pm 
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Rihannsu Commander

Joined: Thu Sep 03, 2009 9:31 am
Posts: 4709
Location: Cincinnati OH
can hit by IP address?


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PostPosted: Thu Oct 14, 2010 12:34 am 
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Bull Moose
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Joined: Wed Sep 02, 2009 7:36 pm
Posts: 7507
Location: Last Western Stop of the Pony Express
Just admit to your boss that his IP address for the Mac was auto-banned for downloading porn to the Station's site and he isn't allowed back on until he delivers a full apology to all the other users, the administrator, and then passes the most rigorous viral scrubbing imaginable by some trusted employee.

That should give you time to find the real problem, fix it, and lecture him again about letting just anyone access the net from his computer.

This may not work if he is any kind of computer savvy.

.

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 Post subject: Re: Web Access Conundrum
PostPosted: Thu Oct 14, 2010 7:34 am 
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Cheesehead

Joined: Thu Sep 03, 2009 1:15 am
Posts: 465
FarSky:

Try a new user.

Assuming it persists in a new user, I wonder if bad info got into the hosts file (ugh, hopefully not, because that's not as easy) or bad DNS cache.

dscacheutil -flushcache in Terminal should fix that last one.

Otherwise, http://support.apple.com/kb/TA27291 for some HOSTS loving.

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 Post subject: Re: Web Access Conundrum
PostPosted: Thu Oct 14, 2010 10:50 am 
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Joined: Thu Sep 03, 2009 9:47 am
Posts: 324
Location: Knoxville, TN USA
Anecdotally, I read not long ago about issues with Safari 5 and DNS prefetching - where some sites wouldn't load any more unless you disabled it. Other browsers do prefetching as well... maybe try that?

<snip from some website>
In Google Chrome, click on Tools menu (a little wrench icon), then go to Options.
Click on the Under the Hood tab.
Under “Privacy” section, untick the check box for Use DNS pre-fetching to improve page load performance.


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