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Infrastructure and Network 13 Jul 2026 Faraday: Rethinking Vulnerability Management for Network Security SecurityFAR
8 Jul 2026 Troubleshooting PostgreSQL performance degradation caused by monitoring queries and configuration settings Knowledge BaseData Management and AnalyticsDatabase
5 Jul 2026 Reducing nightly LWLock contention and slowdowns in PostgreSQL 15.17 with Patroni and PgBouncer Knowledge BaseData Management and AnalyticsDatabase
Infrastructure and Network 19 Jun 2026 Amnezia VPN: Self-Hosted Privacy & Secure Access Solution NetworkingAMN
Infrastructure and Network 17 Jun 2026 SeaweedFS: The Highly Scalable and Blazing Fast Distributed File System StorageSEA
DevOps 10 Jun 2026 Gramax: The Fast and AI-Powered Documentation Platform Developer ToolsGRA
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Articles
25 Jun 2026 Backups Without the Enterprise Price Tag: Using OpenZFS with Neo4j Community Edition

The Backup Problem Nobody Talks About When teams evaluate Neo4j for their graph database needs, the Community Edition looks like an obvious starting point. It’s free, powerful, and more than capable of handling serious workloads. But somewhere between the initial setup and the first production deployment, a quiet realization sets in: native backup functionality in […]

 Articles
25 May 2026 Building High Availability with NGINX: Active-Active and Active-Passive Architectures

High Availability Starts with Removing Single Points of Failure NGINX is often placed at the most important point in a web architecture. It receives traffic before it reaches applications, APIs, services, containers, or backend systems. It can act as a reverse proxy, load balancer, SSL termination layer, caching layer, and traffic control point. Because it […]

 Articles
25 May 2026 The Hidden Complexity of NGINX: When DIY Configuration Costs More Than Support

The Gap Between Getting NGINX Running and Getting It Right There is a version of NGINX that most teams encounter first: the one that installs cleanly, serves a default page, and seems straightforward enough that configuring it for production feels like a natural next step. That version is real. NGINX is genuinely well-documented, widely adopted, […]

 Articles
25 May 2026 NGINX Performance Tuning: From 3,000 to 6,000+ Requests Per Second

Why NGINX Performance Tuning Matters More Than Hardware Upgrades NGINX is trusted because it is fast, stable, lightweight, and highly flexible. It powers websites, APIs, reverse proxies, load balancers, application gateways, and high-traffic platforms across many industries. For many businesses, NGINX quietly sits at the front of critical digital services, handling traffic before it reaches […]

 Articles
25 May 2026 RediShell CVE-2025-49844: The 13-Year-Old Critical Vulnerability You Need to Patch Now

A Flaw That Was Always There, Hiding in Plain Sight There is something uniquely unsettling about a critical security vulnerability that has been sitting in a codebase for over a decade. It means that every deployment, every production environment, every cloud workload running Redis during those years was carrying a flaw that nobody knew was […]

 Articles
25 May 2026 The Kubernetes Complexity Crisis: Why 75% of Organizations Struggle with Day 2 Operations

Kubernetes Became Essential, Then It Became Hard to Manage Kubernetes has become one of the most important technologies in modern infrastructure. It gives businesses a powerful way to run containerized applications, scale services, manage workloads, and support cloud-native growth. For companies building digital products, SaaS platforms, internal applications, and data-driven systems, Kubernetes often feels like […]

 Articles
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How To
27 Jan 2026 Apache ZooKeeper Docker Migration How To
5 Sep 2025 How to Deploy Hossted VM App on Oracle How To
8 May 2025 How to Deploy Hossted VM App on GCP How To
10 Jan 2025 How to configure a domain for Hossted VM application How To
22 Oct 2024 How to authorise through AWS Identity and Access Management (IAM) How To
17 Oct 2024 How to Deploy Hossted Kubernetes App on AWS How To
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Newsflash
16 Jul 2026 Project and Agile Management
Foreman: Broken Access Control Vulnerability

In Foreman versions prior to 6.16.10 a medium severity vulnerability CVE-2026-5135 was detected. This vulnerability allows an authenticated user with host-edit permissions to retarget an existing lookup value override to a different host. To address this issue, users should upgrade Foreman to version 6.16.10 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2026-5135.

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16 Jul 2026 DevOps
PHP: Remote Command Execution Vulnerability

In PHP a critical severity vulnerability CVE-2026-34116 was detected. This vulnerability allows unauthenticated attackers to execute arbitrary commands on the server. To address this issue, users should upgrade PHP to the latest available version. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2026-34116.

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16 Jul 2026 Data Management and Analytics
Kibana: Denial of Service

In Kibana versions from 8.0.0 up to and including 8.19.14 a medium severity vulnerability CVE-2026-49087 was detected. This vulnerability allows an authenticated user to cause a denial of service by submitting a specially crafted bulk deletion request. To address this issue, users should upgrade Kibana to version 8.19.15 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2026-49087.

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16 Jul 2026 Project and Agile Management
Foreman: Cross-Tenant Information Disclosure Vulnerability

In Foreman versions prior to 6.16.10 a medium severity vulnerability CVE-2026-5138 was detected. This vulnerability allows an authenticated user with host-edit permissions to access information from other tenants. To address this issue, users should upgrade Foreman to version 6.16.10 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2026-5138.

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16 Jul 2026 Project and Agile Management
Foreman: Improper Permission Validation

In Foreman versions prior to 6.16.10 a high severity vulnerability CVE-2026-5136 was detected. This vulnerability allows attackers to gain unintended role permissions. To address this issue, users should upgrade Foreman to version 6.16.10 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2026-5136.

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15 Jul 2026 DevOps
Apache Tomcat: Cross-Site Scripting Vulnerability in Number Guess Example

In Apache Tomcat versions 11.0.0-M1 through 11.0.22, 10.1.0-M1 through 10.1.55, 9.0.0.M1 through 9.0.118, 8.5.0 through 8.5.100, and 7.0.0 through 7.0.109 a medium severity vulnerability CVE-2026-50229 was detected. This vulnerability allows a remote attacker to inject malicious scripts into the ‘number guess example’ web page. To address this issue, users should upgrade Apache Tomcat to the latest available version. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2026-50229.

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Case Studies
13 Jul 2026 PostgreSQL failover: primary saturation caused promotion and WAL loss prevented automatic rejoin

Problem: A high-traffic Patroni-managed PostgreSQL cluster experienced an automatic failover: the former primary (node A) lost leadership, and a secondary (node B) was successfully promoted. However, after the failover, node A failed to automatically rejoin the cluster as a replica. The symptoms unfolded in three stages. First, direct streaming replication was immediately rejected by the […]

 Knowledge BaseCase Studies
22 Jun 2026 Automating DR site rebuild for a large Patroni PostgreSQL cluster

Problem: A customer running Patroni-managed PostgreSQL (PostgreSQL 15.17, Patroni v3.3) had production databases ranging from >2-3 TB up to a ~52 TB physical replica. Rebuilding the empty DR site from production relied on manual pg_basebackup executions and manual post-backup recovery steps, which was too slow, operationally intensive, and prone to human error for such large volumes. The […]

 Knowledge BaseCase Studies
22 Jun 2026 PostgreSQL LWLock LockManager Contention caused by unpruned partition scans and high concurrency

Problem: An OLTP system using Patroni-managed PostgreSQL 15 experienced global slowdowns under load: CPU climbed to ~80%, large numbers of concurrent sessions, and application timeouts. The client reported bursts of traffic (hundreds of workers in parallel) routed through HAProxy to the leader, and provided PostgreSQL and Patroni logs, auto_explain output, and query samples. Key database […]

 Knowledge BaseCase Studies
1 Jun 2026 Controlling heavy queries and resource usage on a Patroni PostgreSQL cluster

Problem: A production Patroni-managed PostgreSQL 15 cluster experienced periodic heavy queries that threatened availability. An example slow job ran for ~84 seconds and performed a full scan of a 1.8 TB partitioned table (arbor.CDR_DATA) that uses daily partitions starting in early April. Most clients connect through generic application users rather than distinct personal accounts. The […]

 Knowledge BaseDatabaseCase Studies
28 May 2026 Rebalancing uneven disk usage in a 5-node Apache Cassandra 2.2.5 cluster

Problem: A 5-node Apache Cassandra 2.2.5 cluster (two data centers) reported severe per-node disk imbalance: each node was configured with five data_file_directories (e.g. /cassandra/data1/data … /cassandra/data5/data) but some mount points on individual nodes were near full (examples showed mounts at 93% and 95% used). On one node a particular keyspace (jessi) had large sstable directories […]

 Knowledge BaseCase Studies
22 May 2026 Root cause analysis: PostgreSQL primary crashed from system-wide file-descriptor exhaustion

Problem: A production Patroni-managed PostgreSQL cluster (PostgreSQL v15.17, Patroni 3.3.2) experienced a primary process abort with SIGABRT during normal operation. Server logs reported that a server process was terminated by signal 6 (Aborted) and that the failed process was executing a COMMIT when the postmaster began terminating other server processes. Subsequent messages showed PostgreSQL could […]

 Data Management and AnalyticsDatabaseCase Studies
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