DNF Security Official Blog

Microsoft Azure Cloud Security model for State and Local Government

Azure government Cloud customers have the ability to tap into Microsoft’s robust multi-layered security. Azure government cloud is secured with six different layers starting on the outside layer of that physical security and then moving into network, host, application, the admin layer and then finally the data layer…

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DNF Security Solutions for Rising Video Surveillance Storage Demands

Video surveillance cameras are turning into essentially micro servers. In addition to higher resolutions they have got a lot of sensors per camera and there’s a lot of processing taking place on the camera. All of that is changing the architecture of the infrastructure that video storage is no longer peripheral, but a fundamental part of the design…

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Designing an IP Video Surveillance System

IT departments are becoming more responsible for the installation, research and management of video surveillance systems. To create a process for archiving data, analyzing data and in order to design a system that will minimize the impact on your storage and bandwidth will take a lot of planning…

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5 Ways to Protect Video Surveillance Camera Systems from Cyber Attacks

Whether IP surveillance cameras are considered an IoT device or not, they are IP devices connected to the network. And although they are intended to provide protection, surveillance cameras can also be a security exposure. Hackers can use the IP cameras as a point of entry to tap into the organization’s data or shut down the surveillance system…

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How to choose the right IP Network Video Recorders (NVRs)

IP video surveillance camera systems are becoming more dominant in high-quality video image recording. Because of the flourishing of IP video surveillance systems, the demand for NVRs has been steadily rising. Today, NVRs are being adopted at high rates. This blog will help you select NVR with the right features for your environment.

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Overview of IP video surveillance and Network video Recorders (NVRs)

IP video surveillance are full-fledged computers that process video. The difference between IP cameras and analog cameras is how they transmit the video and how much intelligence each one has. There is a whole bunch of stuff that you can do with IP video cameras that you simply cannot do with analog cameras.

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Everything You Need to Know About Cloud Security

Security in the cloud is much like security in your on premises data centers, only without the costs of maintaining facilities and hardware. In the cloud, you don’t have to manage physical servers or storage devices. Instead, you use software based security tools to monitor and protect the flow of information into and of out of your cloud resources…

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What is Metadata?

Sometimes in the IT world we have names for features and capabilities that seem to be tailored for a business user’s confusion. One such word is Metadata. However the concept of metadata is actually quite simple.
You might have heard it referred to as data about data, but when the term data can mean different things to different people, what does that actually mean?

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Bandwidth & Storage Optimization in IP Video Surveillance Industry

The bandwidth challenge is represented over time because it has increased from the early days of video surveillance to current day and into the future. But what we see with our challenges to bandwidth is the increase in camera counts and camera resolution. We have gone from 480p resolution to 720p resolution to 1080p resolution and now we have the high resolution of 4k and above…

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IP Camera Made Simple

IP camera is simply an analog camera with an analog-to-digital converter and a computer, all in one box. The camera has a lens and a sensor that converts the light into electrical signals. Old analog cameras use the vacuum with sweep circuits that moved an electron beam across the sensor…

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CPU Made Simple

The CPU short for “Central Processing Unit” is like the brain of the computer. Once you understand how it works you will understand the computer as well. There are lots of different wires carrying information around the CPU. In every CPU there is a particular wire that turns on and off at a steady rate to help keep everything in sync…

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IPv4 vs. IPv6 Made Simple

An IP address is a numeric address. It is an identifier for a computer or device on a network. Every device has to have an IP address for communication purposes. There are also two types of IP addresses the first one is the most common one, it is called IP version 4 (IPv4) and the second type is IP version 6 (IPv6)…

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How to Build a Software Defined System

Even though, in para-virtualization we have to modify the operating system to run on top of the hypervisor, the amount of code change that has to be done in the operating system in order to make it run on top of the hypervisor can be bound to a very small percentage of the total code base of the original operating system…

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Barcodes Made Simple

Barcodes are found in virtually all products that you see in any store. When a laser from a computer scans a barcode, it is actually scanning through a series of 95 evenly spaced columns and checking to see if each one of those columns is reflecting a lot of laser light or virtually none…

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32 Bit and 64 Bit Made Simple

Computer hardware and software can come in 32 or 64-bit versions, the difference between a 32-bit and a 64-bit is the way that it handles memory. The bit size refers to the memory that it can address. A 32-bit system can reference 2 to the 32nd power bytes of memory which equals to about 4 gigabytes…

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A Simple Illustration of Port Forwarding

We have a phone with an electronic switch board that would typically be used in a company. When someone wants to make a call to this company, and let’s say they wanted to talk to the sales department within this company they would dial the company’s phone number along with the extension of the sales department…

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Port Forwarding Made Simple

Basically, port forwarding allows computers over the internet to connect to a specific computer or service within a private network. It is making your computer accessible over the internet even though you are behind a router. A port is not a physical connection but it is a logical connection that is used by programs and services to exchange information…

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Cloud Security Tools for Remediation and Response

OMS Security and audit is primarily used for environments that are hybrid. Whether it’s running on AWS, whether it’s running on Azure, whether it’s running on premise, Windows server or Linux, VMware or OpenStack, OMS Security and audit is where you have your hybrid security components. It integrates operational and security management…

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TCP and UDP Made Simple

Whenever a computer wants to communicate with another computer the communication between those two computers needs to be good and reliable so we can guarantee that the data is received correctly. If you’re downloading a file you would want the entire file and not just a part of the file. Because if data is missing or out of order then it wouldn’t be of any benefit to you. This is where TCP comes in…

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DNF Security is a subsidiary of Dynamic Network Factory, Inc. headquartered in the heart of Sillicon Valley, CA.

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