Is my Redhat 9 safe with all this ports Open? Goodday. I have a Aztech 4 port router a RH9 behind it. I did a NMAP on the Router and i got this results: Interesting ports on adslXXX.dynXXX.pacific.net.sg (210.24.XXX.XXX.): (The 1599 ports scanned but not shown below are in state: closed) Port State Service 80/tcp open http 255/tcp open unknown Are this ports safe or do i have to close them. And i did a NMAP scan on my RH9 Interesting ports on (10.0.0.X): (The 1594 ports scanned but not shown below are in state: closed) Port State Service 22/tcp open ssh 80/tcp open http 111/tcp open sunrpc 139/tcp open netbios-ssn 443/tcp open https 901/tcp open samba-swat 6000/tcp open X11 By the way i have amule running, i wonder if the ports are reflected here. Please advise on what uncessary port i have to close to secure my PC . Thanks. Oh yah... Additional info I am also sharing files between my RH9 and Win 2000.