TCP Congestion Control: basic outline and TCP CUBIC algorithm TCP congestion control is a fundamental part of this protocol and over the years has undergone a process of constant improvement through the generation of different versions, such as TCP Tahoe, Reno, Vegas, and so …
Network security. What does this actually mean? Learn all about it Today, we live in a world in which, the use of new technology is greatly enhancing the ability to communicate with each other. The Internet has been globalized very fast and relationships are …
Network traffic analysis as a foundation for monitoring Monitoring has always relied on both network administration and network traffic analysis. Both fields provide ways to obtain data that allows us to obtain information about the general state of the platform. It is easy to …
Intent Based Networking: the new level of abstraction For some time now, there has been a great deal of talk about Intent Based Networking (IBN) as the next big goal to reach in the network field, or at least in the network management field. …
VXLAN Network: a network between virtual machines, wherever they are The development of VXLAN technology or extensible virtual networks is usually associated with the implementation of service provider company platforms. However, the fundamental idea around VXLAN is applicable to any platform and arises to …
Introduction to WAN Load Balancers Monitoring Since load balancers are active devices that can be included in the design of a WAN, the question arises: Should we adapt our monitoring scheme to include something that could be called Load Balancer Monitoring? To answer this …
Cloud Backup Cost: Things to Keep in Mind Before You Buy A backup is a set of files that are mirrors or exact images of their originals at any given time. They are generally compressed to save space both in storage and transport. They …
Wifi monitoring, power and wireless network range Although since 1985 the federal government of the United States of America provided the radio bands (frequencies) to be used for our daily use, it was not until 1999 when the brand Wi-Fi® was registered, which means …
What is DNS? Learn about its advantages and disadvantages What is DNS? DNS is the Domain Name System, or the hierarchical system of nomenclature that orders the names of members who connect to IP networks, such as the Internet. In this article we will …
Microsoft SCOM, component for monitoring. Here we go! Microsoft SCOM is an advertised software for Microsoft Windows® administration, but today we will show you that its base rests on well known monitoring techniques. Just to be clear, we emphasize the term in bold: Microsoft …
Deep Packet Inspection: is this the Future of Analysers? Since all technology traffic analysers have evolved, and in order to answer the question of what the next step in this evolution is many experts suggest that the deep packet inspection is the point to …
Traffic Analyzers: What do they do and how are they used? When we are faced with a performance problem related to those responsible for the applications and those responsible for the network platform, we usually think about how useful it would be to have …
Unicast Flooding Traffic: root cause and monitoring Unicast Flooding Traffic is associated with the learning process of network switches. In fact, with this method, switches identify the MAC addresses of the devices that are accessible by each of their ports, thus constructing a table …
Network blind spots: visibility, monitoring and security issues Network blind spots study is framed within a field controlled by three well interconnected elements: monitoring, security and visibility. Here are the two main principles that rule over this universe and are relevant to the topic …
WAN monitoring and the Internet-based model When we think about WAN monitoring we usually start from the basics: the behaviour of remote communication links will directly affect the performance of our applications. Therefore, we understand that if traffic over the communications link experiences high …
Wireless Monitoring: Relevance and Tools The concept “Wireless Monitoring” is quite broad. In fact, it covers all wirelessly instrumented communications platforms and the monitoring we can do on them. We are talking about everything from the short-range signal of a Bluetooth device to sensors …
Importance of Data Backup: Learn how to be protected If you value stability and anticipation, if you love being on the safe side, you should know the importance of Data Backup. Performing a backup of the system is essential in order to maintain the …
Certification Authority Authorization (CAA). How does it work? The Certification Authority Authorization is an additional specification or standard that brings extra security confirmation for our web domains. In this article we will describe, in general terms, its origin, how it works and recommendations in …
Network TAP: three situations in which they are necessary Network TAP (Terminal Access Point or Test Access Point) is the most common hardware device used for network traffic capture purpose. A Network TAP is basically a hardware designed to access the traffic between two …
Martian Packets: The concept and relationship with Monitoring Such a weird name, Martians Packets, was coined in the RFC 1812 norm and it talks about Martian Directions (contained, of course, in a Martian Packets In the last century, the possibility of finding life on …
DNS Monitoring: Reasons and elements to be included When we think of DNS (Domain Name System), there are two thoughts that we all assume to be true and that become natural justifications for the development of a DNS Monitoring scheme: If the DNS system …
SDN: Challenges for Network Administrator’s and Monitoring Last December, Acumen Research and Consulting, a global provider of market research, published a report titled “Software Defined Network (SDN) Market” where they estimated a compound annual growth rate (CAGR) of 47% for SDN in the period …
IOT and 5G, learn all about the new priorities of technology I’m pretty sure that every morning, before leaving home, when you look at the bright oval of your mirror in the bathroom, you look at your freshly watered-down face and say, “Wow, how …
What is Internet of things? Discover how it’ll change our world Hey! Do you know what is Internet of Things? The Internet of Things, or IoT (which stands for Internet of Things) is the network of physical devices, vehicles, home appliances and other items …
5G. What is it? When will it arrive and why do we need this now? The term 5G stands for “Fifth Generation“. As you may guess by the number 5, there have been previous generations, we find ourselves surrounded by the 4th generation at …
Social media monitoring. Find out 8 tools for great monitoring From your cousin Paco to your grandmother Maria. From the Pharmacist around the corner to the President of your country. Some studies claim that about 3,000 million people around the world already use social …
Graylog2 VS Pandora FMS: a detailed comparison Brief history of syslog and Graylog2 Before introducing Graylog2, we first have to dive into what syslog is. Its history dates back to 1981 when Eric Paul Allman used to work at Berkeley University in California and …
Basic Network Commands that every administrator should know In this article we will go through different network commands for Windows and Linux, this is essential for any network Administrator. These network commands, can be used separately or can be combined with Pandora FMS to …
Double Bind; Network or applications, which is to blame? Are you ready? First of all, I want you to not think of an elephant. An African or an Indian elephant, it makes no difference which one you don’t picture in your mind, just don’t …
Network administration in the IT sector is a Sisyphean task, an uphill battle to deal with new technologies, ward off cyber attacks, keep abreast of updates, and keep the tubes clean. Maintaining a network at optimum performance, keeping in mind its cost, its evolution, …
When faced with the technological plenitude offered by almost any company’s IT infrastructure you might be tempted to think that installing a monitoring system to oversee each device, and alert your team when there’s an issue, is the best bet. Of course, here at …
When was the last time you checked your phone bill? Itemized all its contents and checked all those boxes? How could you know if your ISP is giving you the service you pay for? Does your network get saturated even though you’re nowhere near …
Best Network Tools to manage your network Today, we’re going to bring you a compilation of all those network tools you should know about in order to correctly manage your networks. Many of these network tools have been around for some time, but they …
Network monitor with Pandora FMS In this article we’re going to take a look at the main characteristics that a network monitor should have, their pros and cons, and how to know if it’s time to install one to oversee your company’s network. Plus, …
Small guide of best practices for server monitoring The best practices for server monitoring begin much before the moment at which we choose or deploy a tool. It’s not about fixed guidelines, rather a way of working and understanding how to use a monitoring …
Free network tools that you need to know Network administration is one of the toughest challenges a sysadmin can face. Not only is it complicated in itself, it´s also of vital importance for large and medium-sized companies, and their balance sheets. In the online …
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