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Apple Computing Products:
macOS - Operating System
Unable to Connect to Specific Website
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<blockquote data-quote="gsahli" data-source="post: 1245274" data-attributes="member: 182015"><p>I'm able to reach that site, but the typical DNS lookup utilities (trace, ping, host) can't, because of sophisticated firewalls.</p><p>Got this from an online lookup:</p><p>There appears to be a firewall at 64.39.2.74 (hop 11) that blocks unwanted UDP packets.</p><p></p><p>There appears to be a firewall at 70.86.70.33 (hop 1) that blocks unwanted TCP packets.</p><p></p><p>When trying a direct IP address in the browser, I get</p><p>"Please Come Back Later."</p><p></p><p>So, my conclusion is that your computer is setup to use a non-current DNS server. You should look in your Network prefs and see if you have a DNS server set - other than your router or your ISP, or some well-known server like Google or Open DNS, etc. And if it isn't - then set one of those up.</p></blockquote><p></p>
[QUOTE="gsahli, post: 1245274, member: 182015"] I'm able to reach that site, but the typical DNS lookup utilities (trace, ping, host) can't, because of sophisticated firewalls. Got this from an online lookup: There appears to be a firewall at 64.39.2.74 (hop 11) that blocks unwanted UDP packets. There appears to be a firewall at 70.86.70.33 (hop 1) that blocks unwanted TCP packets. When trying a direct IP address in the browser, I get "Please Come Back Later." So, my conclusion is that your computer is setup to use a non-current DNS server. You should look in your Network prefs and see if you have a DNS server set - other than your router or your ISP, or some well-known server like Google or Open DNS, etc. And if it isn't - then set one of those up. [/QUOTE]
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Apple Computing Products:
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Unable to Connect to Specific Website
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