So, i can ping, nmap live machines...
Started playing with some retired ones and I can ping them but when I nmap the return host seems down... try -Pn error.
Not really sure... why havn't had the issue in the past.
On Parrot Security OS.
---> Change proto udp to proto tcp
If that doesn't work https://www.hackthebox.eu/home/htb/access has other solutions.
I found a way to work out a little bash script for the iptables which seems to have fixed things. I run through a private vpn as well so with both up I had to rework a few things.
Thanks for the tip though!
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