Open Firewall Ports Home Page › Forums › Network Management › Firewall, Traffic Shaping and Net Balancer › Open Firewall Ports This topic contains 1 reply, has 0 voices, and was last updated by Stonecold2k 6 years, 3 months ago. Viewing 1 post (of 1 total) Author Posts November 14, 2012 at 8:53 am #43497 Stonecold2kMember Hello @all, i have a short question. When i make a portscan with nmap i have some ports that are open. Is it possible to disable a portscan and close some ports only from outside? For example port 53. When i DROP the packages with the firewall the port comes with “filtered” on nmap but what i want is, that the port isn’t shown from outside. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.