can anybody let me know how to block ports on any Operating System...? Rightnow i wanted to block certain ports on my systems within our LAN. any port Blocking Software can be of help to me or should t be done at the router Level.? If at the Router level pl. let me know the config part of it.
say i want to block http,ftp,telnet and some standard ports.
Also pl. let me know the commant for blocking the finger port on my router.
Thanks Ganesh For the response. I treid filtering through Access list only but I faced the below Problem. Pl. let me know how to overcome thi?
We have 3 subnets in our office, Configured as secondary Interfaces on the Router. Our Servers are spread across these 3 subnets. Say if I block a port on server sitting in Subnet A through access list, and run a port scan from any node on subnet A , The port is not blocked as ROuter will not come into picture for communication between systems on the same subnet. where as if i scan a server in Subnet B it shows port blocked as i must go through the router to access the secondary subnet and it gets filtered by the access list.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...