sahil.modgil

A workaholic Techno enthusiast who is deeply passionate about computers specially GNU / Linux, Open Source and latest trends in Web Technologies.



Hubs, Switches and Routers

  Basic difference Hubs Hubs, also known as repeaters, are network devices that can operate on layer-1 (I.e. the physical layer) to connect network devices for communication. Hubs cannot process layer-2 or layer-3 traffic. Layer-2 deals with hardware addresses and layer-3 deals with logical (IP) addresses. So, hubs cannot process information based on MAC or […]

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Information Security FAQ

  What is NAT and how does it work? The abbreviation for NAT is Network Address Translator. Private IP addresses are not globally recognized and should never be used on the internet and they are intended for the internal use in isolated networks, such as LANS, without internet access. However, private addresses can be used […]

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Nmap Basics

Explore the network with Nmap Nmap is a tool for port scanning the internet. A port is the point admission, physical or logical, of a connection through which you transfers made between files. Nmap has infinite utility, we think that most of the vulnerabilities will find them with this small but great tool. To give […]

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network-tools

Network tools for Linux

Here are some free, open-source, and useful network tools for Linux: 1) tcpdump is a common packet analyzer that runs under the command line. It allows the user to intercept and display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. Distributed under the BSD license. The […]

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