[ubuntu-studio-users] weird ssh issue

[Ross Gammon]

Hi Bart,

This is a bit off-topic for Ubuntu Studio, and you might have more
success asking in a forum more used to dealing with networking issues.

If you can connect to a different Raspberry pi from the same computer
plugged into the same network location, and if you can connect to this
Pi from a mobile phone, are you sure you are using the right IP address
in the ssh command? I assume the mobile phone is using a public IP
address and the router is set up to divert Port 22 connections to the
right internal IP address.

Can you connect to this pi from the other pi? Assuming they are on the
same subnet then this would confirm that the problem is on your Ubuntu
Studio computer setup.

Regards,

Ross

On 01/11/2020 22:32, bart deruyter wrote:
> Hello,
> 
> I've got a weird issue here. I'd like to move some of my finished videos
> to a drive connected on a raspberry pi 3 device, which is running LibreElec.
> I recently upgraded to 20.10, on my laptop, fresh install actually, with
> the new KDE environment, and since then I can't reach this device over ssh.
> I get this as result: ssh: 
> connect to host 192.168.1.xx port 22: No route to host 
> (last number is a real number, don't worry :-) )
> username is correct, I don't even get the chance to enter a password.
> 
> When trying:
> nmap -sn 192.168.1.0/24 <http://192.168.1.0/24>, the ip-address of the
> device is not listed.
> 
> The strange thing is, when I ssh to the same device with my android
> phone, using Termux I do gain access without any issues at all. Checking
> on the device, it should be there, the IP has not changed, checking the
> connected ip-addresses on the router, it is listed too.
> 
> Even stranger is, I have another raspberry device I can connect to over
> ssh with my laptop.
> 
> The only thing I can guess at the moment that might be causing it, is
> the last number in the ip-address. It is quite high, maybe that has
> something to do with it. The other raspberry device runs raspbian and
> has a much lower ip-address. Is there some limit built-in some config
> file which prevents scanning the ip-addresses from a specific number
> onwards for some security reason I'm not aware of?
> 
> thanks in advance,
> Bart
> 
> https://esmiltania.be
> On Twitter <https://twitter.com/Bart_Issimo>
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>