Patroni Patroni is an open-source template that provides High Availability (HA) for PostgreSQL. It integrates with Distributed Configuration Stores (DCS) such as Etcd, Consul, ZooKeeper, and Kubernetes to automate leader election, automatic failover, and replication management of PostgreSQL clusters. This enables …

Read more

VictoriaMetrics VictoriaMetrics is a fast, cost-effective, and scalable open-source time series database and monitoring solution. It works as a Prometheus-compatible remote storage with its own query language, enabling long-term storage and high-speed queries of metrics. This allows visualization of the overall system …

Read more

InfluxDB in Practice InfluxDB is a database purpose-built for time-series data: timestamped records written at high rate and queried over time ranges. For this workload it delivers throughput and storage efficiency that a general-purpose RDBMS or KVS cannot match. This article walks through three use cases where …

Read more

OpenGFW in Practice OpenGFW is an open-source L7 packet filter running on Linux. It captures packets via Netfilter, runs DPI (Deep Packet Inspection) to identify HTTP / TLS SNI / DNS / QUIC / SSH / WireGuard and more, then chooses allow / block / log actions based on a YAML rule set. This article covers three canonical …

Read more

Signoz Signoz is an open-source monitoring tool that provides distributed tracing and metrics. It allows tracking of distributed system-wide tracing, metrics, alerts, and log management. This enables visualization of the overall system performance and facilitates quick identification and resolution of issues. Key Facts …

Read more

About Syncthing Syncthing is an open-source file synchronization software used to synchronize files between different devices. Data transfer over the network is encrypted, ensuring privacy protection. Key Facts NameSyncthing Repositorygithub.com/syncthing/syncthing Stars89.3k (as of 2026-10) Forks5.5k (as of 2026-10) …

Read more

OpenSearch OpenSearch is a distribution for search engines and log analysis, and is an open-source project forked from Elasticsearch and Kibana. Key Facts NameOpenSearch Repositorygithub.com/opensearch-project/OpenSearch Stars13.8k (as of 2026-10) Forks3.0k (as of 2026-10) LicenseApache-2.0 PurposeDistributed full-text …

Read more

OpenGFW OpenGFW is a tool designed to bypass internet censorship, primarily used to circumvent China's Great Firewall (GFW). This tool was developed to bypass filtering of TCP/UDP packets, unlike conventional methods such as VPNs or proxies. Key Facts NameOpenGFW Repositorygithub.com/HyNetworks/OpenGFW Stars288 (as of …

Read more

Kubeshark Kubeshark is a tool for visualizing network traffic in Kubernetes clusters. By using Kubeshark, users can analyze the traffic patterns between applications running in a Kubernetes cluster and identify issues or bottlenecks. Key Facts NameKubeshark Repositorygithub.com/kubeshark/kubeshark Stars12.1k (as of …

Read more

Harbor Harbor is an open-source container image registry project that provides management and security for Docker images. Key Facts NameHarbor Repositorygithub.com/goharbor/harbor Stars29.5k (as of 2026-10) Forks5.4k (as of 2026-10) LicenseApache-2.0 PurposePrivate container image registry CategoryContainer Platform / …

Read more