ACL (Access Control List) on network devices can be implemented both hardware and software-based. If software-based ACLs are quite straightforward — these are rules stored and processed in RAM (i.e., on the Control Plane), with all the inherent limitations, then how are hardware-based ACLs implemented and function […]
The goal of this article is to introduce the reader to the basics of network interaction and network policy management in Kubernetes, as well as to the Calico third-party plugin that enhances standard capabilities. Convenience of configuration and some features will be demonstrated through real examples from our experience. A Quick Introduction to Kubernetes Networking It is impossible to imagine a Kubernetes cluster without a network. We have already published materials […]
According to online sources, the company Google plans to release an application that combines the email service Gmail, cloud storage Google Drive, and the proprietary corporate messenger Hangouts. The new Google application is likely being created to attract the attention of corporate clients who have switched to using services from competing companies, including Microsoft. For example, Microsoft Teams and Slack provide […]
Hello everyone, I recently read an old article about speeding up OpenVPN on a router by moving encryption to a separate piece of hardware that is soldered inside the router itself. I have a similar situation as the author — a TP-Link WDR3500 with 128 megabytes of RAM and a poor processor that completely struggles with tunnel encryption. However, I absolutely […]
Some of us do not use the internet without a VPN for various reasons: some require a dedicated IP, and it is easier and cheaper to purchase a VPS with two IPs than to buy an address from a provider, others want access to all websites, not just those permitted in Russia, and some need IPv6 but the provider does not offer it… Most often […]
iXsystems has released FreeNAS 11.3, a distribution for quick deployment of Network-Attached Storage (NAS). The distribution is based on the FreeBSD code base, featuring integrated ZFS support and management capabilities through a web interface built using the Python framework Django. Access to the storage can be organized using FTP, NFS, Samba, AFP, rsync, and iSCSI, and software […] can be applied to enhance storage reliability.
A critical vulnerability (CVE-2020-7247) has been discovered in the OpenSMTPD mail server of the developing OpenBSD project, allowing remote execution of shell commands on the server with root user privileges. The vulnerability was identified during a re-audit conducted by Qualys Security (the previous audit of OpenSMTPD was conducted in 2015, and this new vulnerability has been present since May 2018). The issue has been fixed in OpenSMTPD release 6.6.2. All users are recommended to […]
In the Telegram chat @router_os, I often see questions about how to save on purchasing a Mikrotik license or how to use RouterOS for free. Surprisingly, there are indeed legal ways to do this. In this article, I will not address the licensing of Mikrotik hardware devices, as they come with the maximum license that can be supported from the factory […]
I know many Data Scientists — and I would consider myself one of them — who work on GPU machines, either local or virtual, located in the cloud, whether through Jupyter Notebook or some Python development environment. While working for 2 years as an AI/ML development expert, I did exactly that, while preparing data on a regular server […]
Speculations about Intel potentially implementing hardware acceleration for ray tracing in its upcoming Intel Xe GPU family have been around for quite some time. The company later confirmed this, but only for data center GPUs. Now, clear evidence of ray tracing support in Intel's consumer GPUs has been found in the drivers. A network source with the alias […]
Google has introduced a new service, Android Flash Tool (flash.android.com), which allows users to install firmware on connected Android smartphones via a browser. The builds are generated based on the latest snapshots from the master branch of the AOSP (Android Open Source Project), which have been verified through a continuous integration system and may be of interest to developers looking to test the latest changes in Android code or check the performance of their applications. […]
Developers of the email client Thunderbird have announced the transition of the project's development to a separate company, MZLA Technologies Corporation, which is a subsidiary of the Mozilla Foundation. Until now, Thunderbird was under the auspices of the Mozilla Foundation, which oversaw financial and legal matters, but the infrastructure and development of Thunderbird were separated from Mozilla, and the project developed independently. The transition to a separate division is due to […]