either portsentry is insane, my laptop has been compromised, or ...

[Arun Khan]

On Tue, Jul 9, 2024 at 9:42 PM Rusty Carruth via PLUG-discuss <
plug-discuss at lists.phxlinux.org> wrote:

> Problem solved!  ChatGPT skirted around the solution, and should have
> ...
> Cause:  netmask on the SERVER was wrong, resulting in the server trying
> to use the firewall as a router.  Ping worked in this case, but ssh
> wouldn't.  (netmask on server was 255.255.255.0, the correct mask is
> 255.255.252.0).
>
> This was the result of my entering the netmask as a bit count, not as a
> bit field, and I was off by 2 bits.
>
> Fixed, now all works!
>

Thanks for sharing the root cause of your issue!
Netmask has tripped many of us.

-- Arun Khan
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