I'm just learning network security and I have some questions related to open ports on a specific network.Only web services (HTTP and HTTPs) and map service (SMTP) should be allowed from outside of the network. What do these scans show in relation to these rules? Can someone explain the significance of the information in these scans?

An nmap scan of a firewall shows that these ports are open:

An nmap scan on the server shows that these ports are open:

An nmap scan of another machine shows that these ports are open:

INT-KALI-SNHU_0 - Mozilla Firefox O - ... v X = OA https://lab.infoseclearning.com/lab/console/a315531f-7119-4c10-95c9-a6b68002bfba/INT-KALI-SNHU_0 INT-KALI-SNHU_0 View Fullscreen Send Ctrl+Alt+Delete Reboot Applications - Places - Terminal - Mon 21:01 , root@kali2: * File Edit View Search Terminal Help root@kali2: # nmap 203.0.113.100 Starting Nmap 6.49BETA4 ( https:/map.org ) at 2018-03-19 21:00 EDT Nmap scan report for 203 .0.113.100 Host is up (0.00026s latency). Not shown: 997 filtered ports PORT STATE SERVICE 22/tcp open ssh 53/tcp open domain 80/tcp open http C Nmap done: 1 IP address (1 host up) scanned in 33.17 seconds root@kali2:-#