Re: Wireless home LAN - WiFi vs Bluetooth?

On 03/08/2019 14:20, Richard Owlett wrote:
> On 07/29/2019 11:47 AM, Aleksandar Kuktin wrote:
>>> On Mon, 29 Jul 2019 09:30:32 -0500
>>> Richard Owlett <[email protected]> wrote:

>>>> How to connect one WiFi interface to multiple networks? (If you find
>>>> out, please post the answer here. xD )
>>>
>>> I have no idea of how to describe a test case. The above Wikipedia 
>>> link may suggest something?
>>>
To the best of my knowledge it is not possible to run a WiFi on multiple 
frequencies simultaneously nor to connect to multiple SSIDs 
simultaneously. (Analogously you can't plug two cables into the same 
Ethernet card.)

However it is possible to have multiple IP subnets on the same SSID, 
though I don't really see the point in this peer-to-peer setup.

>> What application-level interfaces will you use to actually *use* the
>> network? (FTP? Web? 9P2000? NFS? Gopher? gRPC? Whatever Bluetooth uses?)
>
> Long-term - ?????
> Initially whatever Debian defaults to when intentionally isolated from 
> the internet.
>
> {I've never installed LFS but have found its documentation and lists 
> useful because of the fine-grained approach to systems.}
>
> What do I want my "user-interface" to look like? Don't know ;/
> The initial motivation for all this was to eliminate "sneaker-net".
> I want convenient file sharing between pairs of machines more than 
> among a collection of machines.
>
Firstly you need to get connected to you WiFi...

On top of that you need your IP layer.  Given your peer-to-peer use 
case, there is no DHCP so you either need to allocate fixed IP addresses 
or go with zeroconf addressing 
(https://en.wikipedia.org/wiki/Zero-configuration_networking).

Only once you have IP connectivity (verified by ping or so) then you 
come to the application-level question.  I would suggest the easiest and 
most flexible to get started (and to match your sneaker-net replacement 
requirement) is to run an SSH daemon on each node, generate 
private-public SSH key pairs and use SFTP or SCP.  But that is certainly 
not the only possibility.

-- 
http://lists.linuxfromscratch.org/listinfo/lfs-chat
FAQ: http://www.linuxfromscratch.org/blfs/faq.html
Unsubscribe: See the above information page