[OT] Invalid host address

Bob Sneidar bobsneidar at iotecdigital.com
Tue Mar 3 19:05:26 EST 2015


It sounds like their DNS might be hosed. Perhaps the user has manual assigned a DNS server instead of the local network assigning one for him. Perhaps that DNS server is inaccessible at certain locations. Some users like to manually set their DNS to Google’s DNS or OpenDNS. This can get them into trouble in school environments, where there are typically content management systems that will block any attempt to use a DNS server other than the local one. 

Bob S


> On Mar 2, 2015, at 17:58 , Mike Bonner <bonnmike at gmail.com> wrote:
> 
> The hosts file can be set up to provide specific name to ip address
> mappings.  99.9% of the time its not used, and if it is, its often a
> hijack. Along with the hijack thing, its also possible that a proxy has
> been set up unbeknownst to the user, and its munging something as it
> decides where they want to direct the user, rather than where the user
> actually wants to go.
> 
> Can you post some of the gibberish?
> 
> On Mon, Mar 2, 2015 at 6:53 PM, J. Landman Gay <jacque at hyperactivesw.com>
> wrote:
> 
>> Out of thousands of users, occasionally one can't connect and repeatedly
>> gets an invalid host address error. What causes those? All users are
>> sending to the same server at the same domain. Naturally they all say it's
>> only our app and never happens in a browser.
>> 
>> Everything I've found about it is mostly gibberish to me. Is this
>> something to do with the hosts file on the computer? The latest report says
>> it happens on different networks (home and school) so I assume it's
>> specific to his machine.
>> 
>> --
>> Jacqueline Landman Gay         |     jacque at hyperactivesw.com
>> HyperActive Software           |     http://www.hyperactivesw.com
>> 
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