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Reducing replication lag with IO concurrency in Postgres 15

The Citus Data

In this blog post, you’ll learn how recovery prefetching minimises I/O stalls and reduces replication lag in PostgreSQL 15—as well as how this work fits into a larger set of proposals to move PostgreSQL from traditional UNIX style I/O to efficient modern I/O APIs in the future. It doesn’t yet work on other operating systems.

Linux 113
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Cybersecurity Snapshot: DHS Tracks New Ransomware Trends, as Attacks Drive Up Cyber Insurance Claims and Snatch Variant Triggers Alert

Tenable

Snatch, which appeared in 2018 and was originally known as Team Truniger, uses a ransomware-as-a-service (RaaS) model to operate, and employs a variety of frequently changing methods to breach systems and establish network persistence, the agencies said. “The For example, CISA may add a field for KEVs being used by ransomware actors.

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Hottest tech skills to hire for in 2020

Hacker Earth Developers Blog

Tech companies like Google, Amazon, and Microsoft have invested in Rust as a long term system programming language because it is expected to replace a lot of C and C++ development. Embedded system engineers. Containers store up code and all its dependencies so that an application runs fast and reliably on any other Linux machine.

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Top Ten Ways Not To Sink the Kubernetes Ship

Linux Academy

Vulnerabilities at the operating system level may be exploited by rogue container workloads if not hardened. Recent vulnerabilities in the runc container engine, and the CVE-2018-1002105 tCP vulnerability in TCP (Transport Control Protocol) itself requires quick upgrades of the cluster modules themselves. Implement Pod Security Policy.

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How Git Can Power an Exciting Future for Content Management

Netlify

It’s now almost a given that a software development project will use the distributed version control system. This article explores the new type of content management system that is enabling Git workflows for content editors. Almost all software projects will use a version control system (VCS). Enter the Git-based CMS.

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Evolving Container Security With Linux User Namespaces

Netflix Tech

By Fabio Kung , Sargun Dhillon , Andrew Spyker , Kyle , Rob Gulewich, Nabil Schear , Andrew Leung , Daniel Muino, and Manas Alekar As previously discussed on the Netflix Tech Blog, Titus is the Netflix container orchestration system. It runs a wide variety of workloads from various parts of the company?—?everything

Linux 114
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Physical Hack, Insider Threat: Busted by Cortex XDR Managed Threat Hunting

Palo Alto Networks

An adversary can replace these programs to get a command prompt – by default, these applications run under the system account, with administrative credentials. . Utilman.exe is a Windows protected file and the only way to overwrite it would be to first disable the Windows system file checker, or do it without the operating system running. .

Windows 55