We still don't know what you are trying to forward to what (some program or service?) - can you elaborate?
Port forwarding rules are generally something you setup on your router and that would not care what OS is on the computer or device you are forwarding those ports to.
So when you say "port forwarding on
Mint" can we just double-check you are not
actually using Mint as a router and trying to forward stuff through
Mint to another computer?
If the router is still forwarding the ports to your PC then not having used Mint I don't know if that enables a firewall by default.
On Ubuntu at least it wasn't on by default, and if needed you could control the firewall using a GUI (e.g. Gufw
) or command line options
Other possibilities include that:
on your router, does port forwarding specifies the destination computer by (host)name rather than local IP address, and does the computer have a different hostname now that you have installed Mint?
was the previous setup using UPnP where the computer would tell the router what ports it wanted forwarding (automatically and dynamically)
While UPnP can make things easier, it does mean you trusting that there are no dodgy programs on any computer in your network that might open other ports without your knowledge.
However until we know more it's hard to point you to the next step.
prompt $P - Invalid drive specification - Abort, Retry, Fail? $G
prlzx on n e w n e t: ADSL2+ / 21CN at 2.5Mbps / 800k