DNF Security Official Blog

Video surveillance is a necessity for enterprise security. Enterprises use IP video surveillance to monitor and secure their IT infrastructure and the workplace. Depending on the size of the enterprise and the number of video sources, the enterprise has to deal with a lot of high resolution videos; which means big data.

What is Network Address Translation 1 NOVEMBER, 2017 Network Address Translation (NAT) was born due to the fast depletion of public IP, appliance, and applications. It was back in 1970’s when the researchers started thinking about how long the IP addresses should be?...

Even with cloud backup services utilizing advanced encryption methods, cloud services aren’t a 100% secure. There are threats that can breach these protocols and compromise enterprise sensitive data. In this article, we take a look at 6 most common threats to cloud security protocols.

Archiving with Glacier: Key Concepts & Ways to Access Glacier’s Services 13 OCTOBER, 2017 Glacier is the best storage service to use for archiving purposes. It is cost effective, doesn’t impose size limitations and keeps your data with a durability that makes it...

Every enterprise, small business owner and domestic user has data that they do not wish to lose and have to archive. Conventional means of keeping this data is through tape storage (USBs, Internal & External hard drives). Traditional means of storage proved expensive, inefficient and imposed the possibility of losing crucial data. Amazon Glacier’s data archival services offer a convenient and efficient means of archiving data in the cloud.

CJIS defines a set of rules that companies need to abide by when handling CJI, as Body Worn Cameras (BWCs) are meant to capture CJI information; it is necessary for this data to be handled in accordance to the CJIS security policy.

With rapid advancements in the business world, professionals are looking at things from a business point of view like measuring the business value of data. Importance of video surveillance cameras is not only increasing legally, but the behavioral importance overtime is rising. This has resulted in a need for advanced video storage appliances.

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…

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…

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…

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…

Living in a big city can be great. But as traffic-jams get more common and the population grows, some cities end up with a higher crime rate. This affects everyone: tourism, business owners and, of course, families. The city of Vicente López, took a broad approach to provide its citizens with a lasting sense-of-security…

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.

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.

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…

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?

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…

Surveillance video lets you see what is happening in a scene but as the number of cameras increases and the hours of recorded video start to add up, it becomes challenging to detect and find the exact events you are looking for. This is where video analytics come into play…

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…

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…

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)…

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…

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…

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…

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…

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…

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…

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…