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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