Tags: firewalls

Understanding Cloud-Based Firewalls

There are cloud firewalls and there are cloud firewalls. While the underlying technology may be the same, there really are two types of products and use cases: One aims to protect the organization's network and users, while the other protects cloud infrastructure and servers. Let's contemplate the...
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Computer security
Mike Guthrie answers some of the security-related questions received during his recent Linux Foundation webinar. Watch the free webinar on-demand.

How to Keep Hackers out of Your Linux Machine Part 3: Your Questions Answered

Articles one and two in this series covered the five easiest ways to keep hackers out of your Linux machine, and know if they have made it in. This time, I’ll answer some of the excellent security questions I received during my recent Linux Foundation webinar. Watch the free webinar on-demand. How...
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The H Factor – Why You Should Be Building “Human Firewalls”

It is often the illusive “H Factor” – the human element – that ends up being the weakest link that makes cyber-attacks and data breaches possible, sometimes even more so than hackers exploiting zero-day system vulnerabilities or employing new malware.  According to the 2016 Verizon DBIR, human...
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NV Gains Momentum for a Secure DMZ

NV technologies make it possible to employ virtual firewalls that can be attached to specific applications and segregate them based on risk. This is the concept of building a secure DMZ in the data center. The end result is that the virtual firewall is not only capable of examining every packet...
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Compilation and Installation of PSAD for IPFire firewall

This article is about compilation and installation of PSAD (Port Scan Attack Detector) for IPFire (Linux based firewall). However, a development environment for the IPFire will be setup for the compilation of new plugin (PSAD in this case). Read full article
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How to Set Up a UFW firewall on Ubuntu 16.04 LTS Server

Firewalls screen data coming in and out of computer networks, blocking unauthorized access and halting traffic from unsafe Internet sources. A firewall is a barrier between you and the internet. UFW is is uncomplicated firewall for Ubuntu and Debian based server. It is used for managing a Linux...
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6 Best Open Source Firewall Solutions

One important step to protect a system is using a firewall. Essentially, this is a network security system, acting like a security guard between internal and external networks. The firewall controls incoming and outgoing network traffic using security rules. The rules specify which connections you...
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Encrypted Network Traffic Comes at a Cost

Emily Ratliff, Sr. Director of Infrastructure Security at The Linux Foundation, writes that the use of encryption over the Internet is growing. Fueled by Edward Snowden's revelations on the extent of NSA and GCHQ content monitoring, encryption is now increasingly provided by the big tech companies...
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