A computer network or data network is a telecommunications network which allows computers to exchange data. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet. Network computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers…
"What is Computer Networking?"Author: Aly Chiman
Aly Chiman
Network Topology Computers in a network have to be connected in some logical manner. The layout pattern of the interconnections between computers in a network is called network topology. You can think of topology as the virtual shape or structure of the network. Network topology is also referred to as ‘network architecture.’ Devices on the network are referred to as ‘nodes.’ The most common nodes are computers and peripheral devices. Network topology is illustrated by showing…
"What Are Network Topologies"Consists of Protocol stack which defines interfaces and services of the protocol at each layer The OSI Model has seven layers: Physical Data Link Network Transport Session Presentation Application OSI reference model is based on a proposal developed by International Standards Organization (OSI) as a first step towards international standardization of the protocols used in the various layers. The model is called the ISO OSI (Open Systems Interconnection) Reference Model because it deals with…
"Seven Layers of OSI Reference Model"P started out as a small open source project that evolved as more and more people found out how useful it was. Rasmus Lerdorf unleashed the first version of PHP way back in 1994. PHP is a recursive acronym for “PHP: Hypertext Preprocessor”. PHP is a server side scripting language that is embedded in HTML. It is used to manage dynamic content, databases, session tracking, even build entire e-commerce sites. It is integrated with a…
"PHP Introduction"The repositories include a nice little program to monitor your bandwidth usage. Very useful if you have a restriction on your bandwidth and you want to track your daily bandwidth usage. The program is called bwbar. It generates a graphical readout of the bandwidth usage locally in a .png and a .txt file. Installation Ubuntu/Debian $ sudo apt-get install bwbar Fedora $ sudo yum install bwbar Usage When installed, you need to modify the configuration…
"Monitor your bandwidth usage: bwbar"