I have a router that connected tto the internet using 4G-modem
I made all the connection to the router and the device behind it alloe only from the vpn netwrok
I have started to check my router using nmap to see "what can go wrong"
when I give the vpn address I get this
Code: Select all
Not shown: 65525 closed ports
PORT STATE SERVICE VERSION
21/tcp open ftp
22/tcp open ssh OpenSSH 7.9p1 Raspbian 10+deb10u2+rpt1 (protocol 2.0)
2000/tcp open bandwidth-test MikroTik bandwidth-test server
5900/tcp open vnc RealVNC Enterprise 5.3 or later (protocol 5.0)
8291/tcp open unknown
8728/tcp open routeros-api MikroTik RouterOS API
64872/tcp filtered unknown
64873/tcp filtered unknown
64874/tcp filtered unknown
64875/tcp filtered unknown
Code: Select all
PORT STATE SERVICE VERSION
21/tcp open tcpwrapped
25/tcp filtered smtp
2222/tcp open tcpwrapped
2. how can it be that I didn't get port 25 from my vpn , but I got it from my isp ?
Thanks,