How do I use tcpdump on a specific port?
How do I use tcpdump on a specific port? tcpdump allows you to specify network packets that are either using some port X as source or destination. For example, to capture DNS traffic, you can use port 53 . You could prefix the port keyword with src/dst as src port 53 or dst port 53 and filter it even further. How do I run tcpdump in Linux? Most OS have tcpdump command pre-installed, if it is not installed you can install using following commands.sudo yum install tcpdump (RedHat based Linux OS)sudo apt-get install tcpdump (Ubuntu/Debian OS) How do I run...