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Thursday, December 22, 2022


Skill Up is a non-profit organization that provide free and paid training for career ranging from information technology to becoming a teacher.


Our non-profit connects workers with the right tools, resources, and support to make confident career shifts. We’ll help you find training and high-growth, good-wage jobs that don’t require a degree.

Skill Up connects workers with the right tools, resources and support, so they can make confident career shifts, find quality living-wage jobs, and position themselves for promising career growth.

Our History:

The COVID-19 pandemic has taken an economic toll on America’s workers. To address this critical need, we launched the SkillUp Coalition in July 2020, an upskilling non-profit coalition built to help America’s laid-off and furloughed workers access the training and employment opportunities they need to secure a place in the economy of the future.

Rather than push workers back into jobs just like the ones they left, SkillUp allows workers to leverage current skills while building new skills that are suited to in-demand jobs with promising career paths.

Now two years later, SkillUp comprises over 90 organizations including training and education providers, tech firms, employers, and philanthropies. We have connected over 1 Million workers to career and training supports throughout the country and are eager to reach even more in the coming years.

We proudly support all workers, at any stage of their journey, and create an affordable, equitable, upskilling ecosystem that allows anyone the opportunity to claim their career.

Click here to sign up

Thursday, October 13, 2022

Linux Firewall Attack Detection and Response With IPTABLES, PSAD, and FWSNORT

The offense seems to be getting the upper hand. Rarely a day goes by without news of a new exploit for a software vulnerability, a more effective method of distributing spam (my inbox can attest to this), or a high-profile theft of sensitive personal data from a corporation or government agency. Achieving secure computing is a perpetual challenge. There is no shortage of technologies designed to foil crafty black hats, and yet they continue to successfully compromise systems and networks.

For every class of security problem, there is almost certainly either an open source or proprietary solution designed to combat it. This is particularly true in the areas of network intrusion detection systems and network access control devices—firewalls, filtering routers, and the like. A trend in firewall technology is to combine application layer inspection techniques from the intrusion detection world with the ability to filter network traffic, something firewalls have been doing for a long time. It is the goal of this book to show that the iptables firewall on Linux systems is well positioned to take advantage of this trend, especially when it is combined with some additional software designed to leverage iptables from an intrusion detection standpoint.

It is my hope that this book is unique in the existing landscape of published works. There are several excellent books out there that discuss various aspects of Linux firewalls, but none to my knowledge that concentrate specifically on attacks that can be detected (and in some cases thwarted) by iptables and the data it provides. There are also many books on the topic of intrusion detection, but none focuses on using firewalling technology to truly supplement the intrusion detection process. This book is about the convergence of these two technologies.

Click here to view the full book