Blog Section
Ubuntu developers have restricted access to the utility /usr/bin/dmesg only for users in the 'adm' group. Currently, non-privileged Ubuntu users do not have access to /var/log/kern.log, /var/log/syslog, and system events in journalctl but can view the kernel event log through dmesg. The reason given is the presence of information in the output of dmesg that could be exploited by attackers for […]
Sebastian Krause identified the source of a strange incompatibility with the Bypass service of the dehydrated script, which is used for automating TLS certificate acquisition via the ACME protocol. Both the reference client and uacme work with Bypass, but not dehydrated (to be precise, it also worked with some workarounds, but exclusively in dns-1 mode). The reason turned out to be trivial: instead of parsing the response in JSON format by […]
Hello Habr, this is a super short and simple guide for beginners on how to connect via RDP using a domain name, so that the annoying certificate warning signed by the server itself doesn't pop up. We'll need WinAcme and a domain. Anyone who has used RDP has seen this message. The guide provides ready-made commands for convenience. Just copy, paste, and it works. […]
In the previous post, I talked about the opportunities Google provides for students and educational institutions. For those who missed it, let me briefly remind you: at 33, I enrolled in a master's program in Latvia and discovered a wonderful world of free opportunities for students to gain knowledge from industry leaders, as well as for teachers to enhance their classes […]
I do a lot of code reviews for others' Ansible and write a lot myself. During the analysis of errors (both others' and my own), as well as through a number of interviews, I realized the main mistake users make with Ansible — they dive into complex scenarios without mastering the basics. To rectify this universal injustice, I decided to write an introduction to Ansible […]
After more than a year of development, the openSUSE Leap 15.2 distribution has been released. The release is built using the base set of packages from the developing SUSE Linux Enterprise 15 SP2 distribution, on top of which newer releases of user applications from the openSUSE Tumbleweed repository are provided. A universal DVD image is available for download, sized at 4 GB, as well as a slim installation image that allows package downloads via […]
Vimeo has released a new version of the static analyzer Psalm 3.12, which helps identify both obvious and subtle errors in PHP code and can automatically fix certain types of errors. The system is suitable for detecting issues in both legacy code and code making use of modern features introduced in new PHP branches. The project's code is written in […]
The material of this article is taken from my Zen channel. Creating a Tone Generator In the previous article, we installed the media streamer library, development tools, and tested their functionality by building a sample application. Today, we will create an application that can emit a tone signal through the sound card. To achieve this, we need to connect the filters in the sound generator scheme shown below: Refer to the diagram on the left […]
The material of this article is taken from my Zen channel. Improving the Tone Generator Example In the previous article, we wrote a tone generator application and used it to extract sound from the computer's speaker. Now we need to address the issue that our program does not return memory back to the heap when it finishes execution. It's time to clarify this matter. After the diagram […]
The material of this article is taken from my Zen channel. Using TShark for RTP Packet Analysis In the last article, we built a remote control scheme from the generator and tonal signal detector, with the connection established via an RTP stream. In this article, we continue to study audio signal transmission using the RTP protocol. First, we will split our test application into a transmitter and a receiver and learn how to […]
The IETF (Internet Engineering Task Force), which develops internet protocols and architecture, has completed the creation of the RFC for the "DNS Push Notifications" mechanism and published the related specification under the identifier RFC 8765. The RFC has received the status of "Proposed Standard," after which work will commence to promote the RFC to Draft Standard status, effectively signifying full protocol stabilization and consideration of all […]
PPSSPP is an emulator for the PlayStation Portable (PSP) video game console that operates using high-level emulation technology (HLE). The emulator works on a wide variety of platforms, including Windows, GNU/Linux, macOS, and Android, allowing users to run a vast array of games on the PSP. PPSSPP does not require the original PSP firmware (and is unable to run it). In version 1.10: Graphics and compatibility improvements Performance enhancements […]