Rusty,
I was unable to SSH into my desktop from a new Ubuntu VirtualBox guest
this morning. Was able to ping. Have not had the time to resolve.
My response is to your mentioning AI. I use the free version of
ChatGPT. It is version 3.5 It responds to normal language. Ask it a
question like you would ask me. Then refine your question based on what
it's response is.
I just went to
https://chatgpt.com/ and did not sign in and asked "Why
do I get an error when trying to SSH into my kubuntu desktop from a
ubuntu 24.04 server running on VirtualBox. I an ping." Notice I
misspelled can at the very end.
These questions are called prompts. And are regular English.
I got a ton of information... And I can continue to refine my question.
In this case it looks like this is all I might need.
I created a YouTube video on using AI to create PHP programs :
https://youtu.be/k7CNqcKxKTg
Keith
On 2024-07-09 15:07, Rusty Carruth via PLUG-discuss wrote:
> Hopefully the answer isn't that *I'm* the insane one! ;-)
>
> So, my laptop, which is running Linux Mint 20.2 Uma, and my file server
> have suddenly had a falling-out. They used to talk to each other just
> fine, but now the file server, running Linux Mint 19.3 Tricia, slams my
> laptop into the deny list as soon as I try to SSH in to it. And I
> don't (believe I have) automatic update enabled on either computer, and
> I certainly don't remember doing anything to the laptop or the server
> related to networking. The laptop has an NFS connection to the file
> server - or it HAD before the blocking!
>
>
> The file server has no problem ssh-ing to the laptop (no surprise
> there, of course).
>
>
> Initially I thought it was some problem with port 161, but I added that
> (and the laptop IP address!) in to the portsenty ignore file, and it
> still got flagged.
>
>
> It isn't in hosts.deny, nor is it in the portsentry bad guys list.
>
>
> I looked (find /etc -type f -print0|xargs -0 egrep <laptopIPaddr>') on
> the file server:
>
> Tue Jul 09 14:02:30 RustyC ~ $ cat /tmp/finding.laptop
> /etc/portsentry/portsentry.ignore.static:myLaptopIP
> /etc/portsentry/portsentry.ignore:myLaptopIP
> /etc/portsentry/portsentry.ignore.static~:myLaptopIP
> Tue Jul 09 14:05:59 RustyC ~ $
>
> (I hacked the local IP to the string 'myLaptopIP'. What is actually
> there is the actual IP addr).
>
>
> So, I removed (uninstalled) portsentry from the file server, rebooted,
> and tried again. Still blocked! Waited about a day, still blocked.
> So, I changed the IP address of the laptop - the server blocks the
> laptop!
>
> Just for fun, I changed my laptop's IP again and tried mounting the
> file server via NFS, without doing anything else (no attempt to ssh,
> etc) - blocked, as far as I can tell. BUT! I can still ping the file
> server from the laptop!
>
> Checked iptables - NOTHING in any table on the server. I'm totally
> stumped, and about to re-install Linux on both the Laptop and the file
> server. (One of these days I hope to get time to fool with AI for this
> kind of thing, but haven't yet had the time...)
>
> Does anyone have any ideas? Thanks!
>
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