Administration Section
Today I am once again pleased to present some useful tips from my colleague Evgeny Ivanov, the team lead of Veeam's technical support team. This time, Zhenya shared recommendations for working with backups and replicas. I hope these will help you avoid common mistakes, and your replicas and backups will never become the "weak link" in the recovery process if needed. So, […]
Anyone who has assembled, purchased, or at least tuned a radio receiver has probably heard terms like: sensitivity and selectivity. Sensitivity indicates how well your receiver can pick up a signal even in the most remote areas. Selectivity, in turn, shows how well the receiver can tune into a particular frequency without the influence of other frequencies. […]
The chapter in which Doctor Web removes the Samsung Magician service DLL, declaring it a trojan, and to leave a request in the support service, you need not just to register on the portal, but also to provide a serial number. Which, of course, doesn't exist, because Dr.Web sends a key upon registration, and the serial number is generated during the registration process by the key — and is not stored ANYWHERE. […]
In two weeks, intensive courses on Kubernetes will start: Slurm-4 for those getting acquainted with k8s and MegaSlurm for Kubernetes engineers and architects. There are only 10 spots left in the Slurm-4 hall. There are plenty of interested individuals aiming to master k8s at a basic level. For Ops, who are familiar with Kubernetes, launching a cluster and deploying an application is already a decent achievement. For Dev, the requests and […]
Compiler development is a very challenging task. However, with the advancement of projects like LLVM, solving this problem has become significantly easier, allowing even a solo programmer to create a new language close in performance to C. Working with LLVM is complicated by the fact that this system is presented with a vast amount of code, accompanied by scant documentation. In an attempt to address this shortcoming, the author of the material […]
Other articles in the series: History of relays The "fast information transfer" method, or The birth of the relay Long-distance writer Galvanism Entrepreneurs And finally, the relay Talking telegraph Just connect Forgotten generation of relay computers Electronic era History of electronic computers Prologue Colossus ENIAC The electronic revolution History of the transistor Groping in the dark From the crucible of war Multiple reinventions History of the Internet Backbone network Dissolution, […]
By approving the use of private microwave networks in "solution 890 or higher," the U.S. Federal Communications Commission (FCC) perhaps hoped to push all these private networks into their quiet corner of the market and forget about them. However, it quickly became clear that this was impossible. New faces and organizations emerged, insisting on changes to the existing regulatory platform. They proposed many new […]
Introduction Digital transformation is encroaching into more and more areas of life and business each year. If a business wants to remain competitive, mere informational websites are no longer enough; mobile and web applications are needed that not only provide users with information but also enable them to perform various functions: acquiring or ordering goods and services, providing tools. For instance, modern banks can no longer simply […]
Design Mail, mail… "Currently, any novice user can set up their free email inbox; they just need to register on one of the internet portals," claims Wikipedia. So, launching your own mail server for this purpose seems a bit odd. Nevertheless, I do not regret the month spent on this, from the day of the OS installation to the day […]
Hello again! I have found another open database with medical data for you. I’d like to remind you that recently I published three articles on this topic: the leak of personal data of patients and doctors from the online medical service DOC+, the vulnerability of the 'Doctor Nearby' service, and the data leak from ambulance stations. This time, an open server has become available […]
Recently, I conducted a comparative test of LTE routers, and it was not surprising to find that the performance and sensitivity of their radio modules vary significantly. When I connected an antenna to the routers, the speed increased exponentially. This inspired me to conduct a comparative test of antennas that can not only provide connectivity in a private home but also ensure it's at least on par with […]
Welcome to lesson 11! If you remember, in lesson 7 we mentioned that Check Point has three types of Security Policy. These are: Access Control; Threat Prevention; Desktop Security. We have already covered most of the blades from the Access Control policy, whose main task is to control traffic or content. The Firewall, Application Control, URL Filtering, and Content […]