Administration Section
During the implementation design of Zimbra in a company, the IT manager has to choose the operating system on which the Zimbra infrastructure nodes will operate. Currently, almost all Linux distributions, including domestic RED OS and ROSA, are compatible with Zimbra. Typically, for installing Zimbra in enterprises, the choice falls either on Ubuntu or RHEL, as the development of these distributions […]
I once thought about automating the deployment of my project. gitlab.com kindly provides all the tools for this, and I decided to take advantage of it by figuring it out and writing a small deployment script. In this article, I share my experience with the community. TL;DR Set up a VPS: disable root, password login, install dockerd, configure ufw. Generate certificates for the server and client docs.docker.com/engine/security/https/#create-a-ca-server-and-client-keys-with-openssl Enable […]
For reference: The author of the article, Reuven Harrison, has over 20 years of experience in software development and is currently the CTO and co-founder of Tufin, which creates solutions for security policy management. While considering Kubernetes network policies as a powerful means for network segmentation within a cluster, he also believes that they […]
When I was learning to drive, during the very first lesson, the instructor drove onto an intersection in reverse, and then said that you should never do thatāever. I immediately remembered this rule for life. Reading Grigory Oster's 'Harmful Advice' to children, you see how easily and effortlessly they grasp that this is not the way to do things. About this […]
Hello, Habr! We remind you that following the book on Kafka, we have released an equally interesting work on the Kafka Streams API library. While the community is still exploring the possibilities of this powerful tool, a recent article was published that we would like to introduce to you. The author shares their own experience on how to turn Kafka Streams into a distributed data store. Happy reading! […]
The first press releases about coherent CFP optical pluggable modules began to appear around 5-6 years ago. At that time, their use in optical density systems was novel and essentially a niche solution. Now, six years later, these modules have firmly entered the telecom world and continue to gain popularity. What types are available, and how do they […]
Users change, but hosting and cloud service providers do not. This is the main idea of the presentation by Indian entrepreneur and billionaire Bhavin Turakhia, which he delivered at the international cloud services and hosting expo CloudFest. We were also there, engaging in discussions with providers and vendors, and some thoughts from Turakhia's speech resonated with general sentiments. […]
Everyone liked the search dog from XP, right? Most users buried Windows XP more than 5 years ago. But loyal fans and those trapped in the ecosystem still continued to use this operating system, making various efforts to keep it alive. But time passed, and Windows XP finally reached the end of its road, as the last one still […]
Half of all websites use HTTPS, and their numbers are steadily increasing. The protocol reduces the risk of traffic interception but does not eliminate the possibility of attacks. We will discuss some of these attacksāsuch as POODLE, BEAST, DROWN and othersāand ways to protect against them in our material. / Flickr / Sven Graeme / CC BY-SA POODLE The POODLE attack was first discovered […]
I automated the task of file associations, which is choosing the program that will open a file from Explorer/Finder. And Iām sharing it. First, the problem: files with needed extensions often don't open by default with anything, and if they do, it's usually something like iTunes. On Windows, necessary associations may even be lost during the installation (or uninstallation) of programs: you might uninstall GIMP, and the ICO files end up owned by […]
Good day. Over the past few years, I have dedicated myself to researching and creating various algorithms for spatial signal processing in adaptive antenna arrays, and I am currently continuing this work in my profession. Here, I would like to share the knowledge and tricks I have discovered. I hope this will be helpful for those beginning to study this field […]
At the beginning of the year, in our report on internet issues and accessibility for 2018-2019, we already mentioned that the spread of TLS 1.3 is inevitable. Some time ago, we deployed version 1.3 of the Transport Layer Security protocol, and after collecting and analyzing data, we are finally ready to discuss the specifics of this transition. IETF TLS working group chairs state: "In brief, TLS 1.3 must […]