I have just installed Netguard Anti virus and firewall on my networked laptop all seems ok except when testing vulnarabilty on the symantic website it shows i have 3 ports open is this dangerous or advisable they are ICMP Ping Port 22 Port 80 any thoughts Please ???
Port 80 is for web browsers, port 22 is for SSH, ping is just to allow other machines to `ping` your machine, tells the other machine nothing other than the fact your PC exists at the IP address. You are safe.