Category Administration
Among the important ones, it is worth highlighting the drop in prices for RAM and SSD, the launch of 5G in the USA and South Korea, as well as an early test of fifth-generation networks in the Russian Federation, hacking of the Tesla security system, Falcon Heavy as a lunar transport and the emergence of the Russian Elbrus OS in general access. 5G in Russia and the world Fifth generation networks are gradually starting […]
I started working with cloudformation 4 years ago. Since then, I have broken many infrastructures, even those that were already in production. But every time I messed something up, I learned something new. Through this experience, I will share some of the most important lessons I have learned. Lesson 1: Test Your Changes Before You Deploy Them I […]
How often do you buy something spontaneously, succumbing to cool advertising, and then this initially desired thing gathers dust in a closet, pantry or garage before the next general cleaning or moving? As a result, disappointment due to unrealistic expectations and wasted money. It is much worse when this happens with a business. Very often marketing tricks are so good that companies get […]
Introduction to operating systems Hi, Habr! I would like to bring to your attention a series of articles-translations of one interesting literature in my opinion - OSTEP. This material discusses quite deeply the work of unix-like operating systems, namely, work with processes, various schedulers, memory, and other similar components that make up a modern OS. You can see the original of all materials here. […]
Just the other day, Zimbra Collaboration Suite 8.8.12 was released. Like any minor update, the new version of Zimbra does not contain any revolutionary changes, but it boasts innovations that can greatly improve the usability of Zimbra in enterprises. One such innovation was the stable release of the Hierarchical Address Book. Recall that to join the Hierarchical Address Book beta test […]
SAP HANA is a popular in-memory DBMS that includes storage services (Data Warehouse) and analytics, built-in middleware, an application server, a platform for customizing or developing new utilities. By eliminating the delays of traditional DBMS with SAP HANA, you can greatly increase the performance of systems, transaction processing (OLTP) and business intelligence (OLAP). You can deploy SAP HANA in Appliance and TDI modes (if […]
Not so long ago, the Electrolux campus in Stockholm was filled with acrid smoke from a fire in a nearby garage. The developers and managers who were in the office felt a burning sensation in their throats. One employee had trouble breathing and took time off from work. But before leaving home, she lingered a little in the building where Andreas Larsson and colleagues tested Pure […]
Welcome to lesson 6. Today we will finally work with the famous Check Point GUI. Something that most people love Check Point for, and some people hate. If you remember the last lesson, then there I said that security settings can be controlled either through SmartConsole, or through a special API that appeared only in the R80 version. In this lesson […]
Time and time again, after conducting an audit, in response to my recommendations to hide the ports behind a white-list, I am met with a wall of misunderstanding. Even very cool admins / DevOps ask: “Why?!?” I propose to consider risks in descending order of likelihood of occurrence and damage. Configuration error DDoS over IP Brute force Service vulnerabilities Kernel stack vulnerabilities Increased DDoS attacks Configuration error The most typical and dangerous situation. How […]
We have long been accustomed to the fact that large IT companies are engaged not only in the release of products and the provision of services, but also actively participate in the development of Internet infrastructure. Google's DNS, Amazon's cloud storage and hosting, Facebook's data centers around the world - fifteen years ago it seemed too ambitious, but now it is the norm that everyone is used to. And now, the four largest […]
In a post about the regatta, we mentioned that in August a competition with prizes awaits all habrazhites. It's time to lift the veil of secrecy. Somehow we got the idea that the phrase "server in the clouds" can be taken literally. And let's really launch a working server into the sky, which can be pinged! At first the idea looked crazy, but after twisting it this way and that […]
We are now on the threshold of a new era of cloud computing. I don’t quite understand why we call remote server computing cloud computing. Of course, it’s worth remembering ruvds, which launched a server on a balloon and Microsoft with an underwater data center, but in reality, we live “near” the servers that will soon become our main method of computing. What […]