Ports work the same way. You have an IP address, and then many ports on that IP address. When I say many, I mean many. You can have a total of 65,535 TCP Ports and another 65,535 UDP ports.

The UDP buffer is memory that is assigned by the Linux operating system to temporarily contain the data packets in transition from the network to the computer.

Because TCP and UDP port numbers are 16 bits in length, they fall in the range of 0 to 65,535, which are the smallest and largest decimal equivalents of the binary numbers that fit inside a 16-bit ...

I am conducting a network security audit. I ran port scans on all relevent servers and desktop. I used superscan. It revealed a great deal of information, mainly open ports. I googled and referred ...

However, in this series of articles on building your very own transparent Linux firewall, we'll use plain-old iptables to evaluate packets in the same way that routing firewalls do, using IP/TCP/UDP ...

DNS uses port 53 and uses UDP for the transport layer. To filter DNS traffic, the filter udp.port==53 is used. As can be seen in Figure E, four queries were made to DNS over the course of this ...