This post originated from a comment on an article here on Habr. It was a fairly ordinary comment, except that several people suggested it would be great to turn it into a separate post, and MyCircle published the very comment separately in their VK group with a sweet introduction about our recent publication with the report […]
— I want to level up and take Cisco's CCNA courses, then I could restructure the network, making it cheaper and more reliable, maintaining it at a new level. Will you help with the payment? — the sysadmin, having worked for 7 years, looks at the director. — I'll train you, and you'll leave. Am I a fool? Go ahead, keep working, — is the expected reply. The sysadmin goes back to his place, opens […]
At the beginning of the 21st century, a resource such as IPv4 addresses was on the verge of exhaustion. As early as 2011, the IANA allocated the last five remaining /8 blocks from its address space to regional internet registries, and by 2017, they ran out of addresses as well. The catastrophic shortage of IPv4 addresses led not only to the emergence of the IPv6 protocol but also to the SNI technology, which […]
Canary deployment is a very effective method for testing new code on a subset of users. It significantly reduces the traffic load that might cause issues during the rollout, as it only occurs within a specific subgroup. This note is dedicated to how to organize such a deployment using Kubernetes and deployment automation. It is assumed that you have some knowledge of Helm and […]
The release of the NGINX Unit 1.11 application server is now available, which develops a solution for running web applications in various programming languages (Python, PHP, Perl, Ruby, Go, JavaScript/Node.js, and Java). Under NGINX Unit, multiple applications in different programming languages can run simultaneously, with launch parameters that can be dynamically changed without the need to edit configuration files and restart […]
The release of Samba 4.11.0 has been announced, continuing the development of the Samba 4 branch with a fully functional implementation of the domain controller and Active Directory service, compatible with Windows 2000 implementation and capable of servicing all supported Microsoft versions of Windows clients, including Windows 10. Samba 4 is a multifunctional server product that also provides file server implementation, print services, and identity server (winbind). Key changes […]
Microsoft has released the open-source monospaced font Cascadia Code, optimized for use in terminal emulators and code editors. The original components of the font are distributed under the OFL 1.1 (Open Font License), allowing unlimited modification of the font, including its use for commercial purposes, printing, and websites on the Web. A TrueType (TTF) file is offered for download. In […]
ISPsystem, a Russian IT company that develops software for hosting automation, virtualization, and data center monitoring, has introduced its new product 'Vepp'. A new panel for server and website management. Vepp is aimed at technically unprepared users who wish to quickly create their own website while ensuring reliability and security. It features an intuitive interface. One of the conceptual differences from the previous panel […]
Sam Hartman, the leader of the Debian project, while attempting to resolve disagreements between the maintainers of the elogind packages (an interface for running GNOME 3 without systemd) and libsystemd, arising from conflicts between these packages and the recent refusal of the release team to include elogind in the testing branch, has suggested the possibility of supporting multiple initialization systems in the distribution. If project participants vote for the diversification of initialization systems, […]
Researchers have discovered several critical vulnerabilities in the Linux kernel: A buffer overflow in the network server part of virtio in the Linux kernel, which can be exploited to cause denial of service or execute code on the host OS. CVE-2019-14835 The Linux kernel running on the PowerPC architecture does not properly handle Facility Unavailable exceptions in certain situations. This vulnerability may be […]
Since the beginning of September, a wide stream of publications has flooded Habr discussing successful achievements on topics like 'Childhood of a Programmer', 'How to Become a Programmer After N Years', 'How I Transitioned to IT from Another Profession', 'The Path to Programming', and so on. Such articles are written constantly, but recently, they've been appearing particularly frequently. Every day, psychologists and others write about these topics.
Today, we have a new rack server, the Cisco UCS C240 fifth generation, on the table. What makes this Cisco server particularly interesting for unboxing, considering that this is already its fifth generation? Firstly, Cisco servers now support the latest generation of Intel Scalable processors, second generation. Secondly, Optane Memory modules can now be installed for using multiple NVMe drives.