Installing Network Simulator 2 (NS2) on Ubuntu 14.04

Network simulators are tools used to simulate discrete events in a network and which helps to predict the behaviours of a computer network. Generally the simulated networks have entities like links, switches, hubs, applications, etc. Once the simulation model is complete, it is executed to analyse the performance. Administrators can then customize the simulator to suit their needs. Network simulators typically come with support for the most popular protocols and networks in use today, such as WLAN,UDP,TCP,IP, WAN, etc.

From: LXer

Using Spark DataFrames for large scale data science

When we first open sourced Spark, we aimed to provide a simple API for distributed data processing in general-purpose programming languages (Java, Python, Scala). Spark enabled distributed data processing through functional transformations on distributed collections of data (RDDs). This was an incredibly powerful API—tasks that used to take thousands of lines of code to express could be reduced to dozens.read more

From: LXer

Red Hat Fiscal 2015 Revenue $1.79 Billion: OpenStack and OpenShift Leading the Way

By Sean Michael Kerner Red Hat reported its fourth quarter and full year fiscal 2015 earnings on March 25, once again showing continued growth across its entire software portfolio. Red Hat’s CEO Jim Whitehurst emphasized the importance of cross-selling Linux platform, cloud application development and platform-as-a-service (PaaS) technologies as key reasons for his company’s continued success.

From: LXer

Zorin OS: Can I keep it, please?

By Clive Nodder “Dad, my windows are broken.”Oh, no! What has he been up to now? Playing football in the garden again? I better go and have a look. There was no glass on the carpet; no damage to be seen at all. “What are you on about, son? Winding me up again?!”

From: LXer

Red Hat’s Profit Beats Estimates

By Reuters Red Hat, the world’s largest commercial distributor of the Linux operating system, reported revenue and profit that beat estimates, as the company benefited from higher demand for open-source software and its cloud-based products.

From: LXer