alexeydemidov.com

What It Is

alexeydemidov.com is the personal technical blog of Alex L. Demidov. The extracted article text shows that its content covers topics such as Tailscale, Keenetic/OpenWRT, Linux memory reclamation, swap, OOM, MariaDB, AWS DMS, CrowdSec, and Terraform. It is not a developer tool product in the traditional sense, but rather a collection of in-depth technical articles aimed at DevOps engineers, SREs, and system administrators.

Core Content and Scope

In terms of function and use case, the site mainly provides hands-on technical notes. For example, it explains how to install Tailscale on a Keenetic router via OPKG/Entware and manually write iptables hooks to solve routing and exit node issues. It also offers systematic explanations of Linux cgroup memory.high, memory.max, LRU, swap, and OOM behavior. Its language/framework coverage is not product support in the usual sense; instead, the articles touch on tool ecosystems such as Shell, iptables, MariaDB/MySQL, SQLite, CrowdSec, Terraform, and AWS. The site itself does not present any API, SDK, self-hosted version, or open-source license.

Pricing

The extracted content does not mention paid subscriptions, commercial plans, payment methods, or enterprise support, so it can be regarded as a personal blog that is publicly readable for free. Its main “cost” is that readers need strong English reading skills and a solid background in Linux and cloud services.

Pros and Cons

The main advantage is its high technical density, with complete commands, configuration files, log snippets, and failure paths, making it especially useful for troubleshooting edge cases. Its explanations of Linux memory management and common misconceptions about swap are also deeper than ordinary tutorials. The downside is that it is not a systematic documentation site: the topics are scattered, and readers need to verify article update frequency, applicable versions, and long-term maintenance on their own. For beginners, the barrier to entry is relatively high.

Who It’s For

It is suitable for intermediate to advanced Linux operations engineers, SREs, network and database administrators, and engineers who need to solve specific issues such as Tailscale routing deployment, CrowdSec data migration, MariaDB memory anomalies, or AWS DMS risk assessment. It is not suitable as a beginner tutorial or for users looking for commercial developer tool purchasing information.

Access in China

The extracted text does not provide information about accessibility, so it is not possible to determine whether the site can be accessed directly from mainland China. Marked as unknown.