What are IP & TCP?
The Internet Protocol (IP) is the address system of the Internet and has the core function of delivering packets of information from a source device to a target device. IP…
Telecommunications
Telecommunication transmits information through various types of technologies over the wire, radio, optical, or other electromagnetic systems. It originates in the desire of humans for communication over a distance greater…
Difference between Tcpdump vs. Wireshark
Wireshark Wireshark is a popular network sniffing tool that provides GUI to decode many protocols and filters. Wireshark is a network traffic monitoring tool that runs on a network interface.…
Wireshark – Basic Explanation of “Eavesdropping”
Functionality Wireshark is very similar to tcpdump, but has a graphical front-end and integrated sorting and filtering options. Wireshark lets the user put network interface controllers into promiscuous mode (if…
What is a DNS A record
The DNS A record points to the IP address for a given domain name. What is a DNS A record? The “A” stands for “address” and this is the most…
What is a DNS AAAA record?
The DNS AAAA record matches a domain name with an IPv6 address — similar to A records, which do the same for IPv4 addresses. What is a DNS AAAA record?…
DNS Explained
You don’t remember individual mobile numbers. Instead, you go to your contacts app and call it by their names. The contacts app allows people to input everyday words without having…
What is the Internet of Things?
Does your house have a smart thermostat? Or do you wear a fitness tracker to help you stay physically active? If you do, you are part of the Internet of…
Yanluowang Ransomware Operators hacked Cisco to Steal Internal Data
Recent reports indicate that Cisco’s corporate network was infected with ransomware from the Yanluowang group in late May. Under the threat of leaking stolen files to the online world, the…
OSI Reference Model
7 – Application: Interface to end user. Interaction directly with the software applications. 6 – Presentation: Formats Data to be “presented” between application-layer entities. 5 – Session: Manages connections between…