2020-01-25 - Re: [GRASE-Hotspot] Apache configuration

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From: Charles Chambers <cc***2@gmail.com>
Message Hash: c558c670299ccae3faca4af1c072b8a1ad6c2dbbe817d24945652ea57f0d5fa1
Message ID: <CAGPMUcEpL=OAYH+rx5QtD3vNk=pJhdKKhvqiJAzXZv0H7LGC+w@mail.gmail.com>
Reply To: <CAESLx0KD-JzrgFM2Bsoz96y8M9HPXjCrfRkNxQGfB=tfDLLMoQ@mail.gmail.com>
UTC Datetime: 2020-01-25 11:43:50 UTC
Raw Date: Sat, 25 Jan 2020 11:43:50 -0700

Raw message 

Which does help, and I hope it's documented.  It is certainly cloned and
backed up.

AFAIK I have the start of a complete Ubuntu mirror operating on the same
server as the hotspot.

I'll need to straighten out the IP address, but that's between me and the
local cable provider.

Charlie



On Fri, Jan 24, 2020 at 10:44 PM Tim <ti***8@gmail.com> wrote:

> Yes and no.
>
> The way the Grase hotspot works, is it adds an alias for /grase to serve
> the hotspot interface. This is adding as an Apache configuration file, and
> not an apache site. This was done so that on the default apache site
> installed, which listens on all IPs, we could have /grase serve the hotspot
> interface, and whatever else the server was already serving via apache
> would still work.
>
> This allows you to run your own websites via the default apache host,
> without having to worry about breaking the Grase hotspot interface. It also
> ensures (by using the default site) that we'll end up on the site that is
> listening on the IP addresses. If we tried to put our own site config in
> place listening on the Hotspot IP, then the admin interface wouldn't be
> accessible except from the client side of the Hotspot. If we tried to put
> our own site listening on all IP's (so we can access it from the server,
> from clients, and from the WAN side), we'd probably either break an
> existing site, or if our config was loaded later, the hotspot wouldn't work.
>
> You can modify your own default Apache site to restrict where it is
> accessible from, but you'll need to ensure it can be accessed from the
> client side of the hotspot (by IP address), and from any admin interfaces
> if you also want to administer it from a device that isn't on the hotspot.
>
> I have contemplated going with a hostname based apache virtual host, but
> this means that we need to ensure our DNS is used by the clients, else they
> won't be able to access the interface. It was much more reliable to use a
> direct IP for the interface. I've also debated using a public DNS name
> serving a private IP address, but this would mean that you wouldn't be able
> to change the hotspot client IP range, which could conflict with other
> local networks, and that the hotspot would then be reliant on the public
> DNS staying active.
>
> I hope that gives some insight into why it works the way it works. Our
> overrides are in /etc/apache2/conf-available/grase-conf-apache2.conf and
> you should find the apache default site in
> /etc/apache2/sites-available/000-default.conf which serves /var/www to any
> IP/hostname that isn't overriden by a more specific site.
>
> Regards
>
> Tim
>
> On Mon, 20 Jan 2020 at 20:58, Charles Chambers <cc***2@gmail.com> wrote:
>
>> I notice that the LAN IP of the hotspot (mine comes up at 192.168.0.200)
>> has a default instance of Apache running on it.  Two questions:
>>
>> 1) Is this by design?  Not that *I* want to, but can it be blocked?
>>
>> 2)  I can browse to it from any admin machine on the LAN (my main admin
>> workstation is at 192.168.0.4).  What exactly would be the collection of
>> configuration files for that instance of Apache?  I'm sure they are not the
>> same collection of configuration files running the hotspot interface...
>>
>>
>> Charlie
>>
>> --
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>>
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-- 
Charlie
cc***2@gmail.com

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