A comprehensive, step‑by‑step guide shows how to design, configure, and troubleshoot a robust Linux logging pipeline using rsyslog, systemd‑journald, and logrotate, covering log collection, storage, rotation, remote forwarding, performance tuning, security hardening, and disaster recovery for production environments.
This article explains why the decades‑old Syslog protocol remains relevant in modern microservice and cloud‑native environments, detailing its structure, advantages, typical use cases, step‑by‑step server setup with rsyslog, command‑line analysis techniques, integration with Java applications, and a comparison with ELK/Loki solutions.
This guide walks through Linux log management, covering traditional rsyslog configuration, systemd‑journal settings, remote log server setup, secure log handling, and log rotation with logrotate, providing concrete commands, file paths, and practical examples for system administrators.
This guide walks you through configuring rsyslog for centralized log collection, distinguishing syslog and klog processes, and setting up OpenSSH with host keys and password‑less RSA authentication, including practical command examples and essential rsyslog and SSH options.
This article explains Linux inode table structure, how commands like ls, stat, cp, mv, and rm interact with inodes, compares hard and soft links, outlines common system log files and their formats, and demonstrates centralizing logs on a rsyslog server.
Learn how to configure and manage Linux logging services—including rsyslog and systemd‑journal—by understanding common log files, severity levels, log types, server setup, security settings, manual syslog transmission, journal analysis, persistent storage, and log rotation with logrotate to ensure reliable system monitoring.
This guide walks through checking system information, configuring rsyslog on a CentOS 8 client‑server pair, managing syslog/klogd processes, disabling firewalld, and establishing password‑less SSH access using RSA key pairs, while also summarizing useful scp options.
This guide walks you through setting up an ELK stack to collect, centralize, and visualize logs from Dockerized applications, covering rsyslog configuration, container deployment for Elasticsearch, Logstash, Kibana, and Nginx, and demonstrates verification via Kibana queries.
This article explains the Linux inode structure, how common commands like cp, rm, and mv interact with inodes, the differences between hard and soft links, and provides a detailed overview of system and user log files, log levels, and configuring a centralized rsyslog server.
This guide walks through Linux logging fundamentals, covering rsyslog service architecture, journald configuration, and logrotate management, while showing how to customize log destinations, use selectors and actions, forward logs over the network, and employ systemd timers for automated rotation.
This guide explains the purpose of common Linux log files, how syslog and klogd collect system and kernel messages, the structure of syslog entries, configuration of /etc/rsyslog.conf for both receiving and forwarding logs, and how to manage log rotation with logrotate.
This guide explains Linux syslog fundamentals, common log file locations, their purposes, the roles of syslogd and klogd, how to configure rsyslog, set up log rotation with logrotate, and deploy a centralized log server for multiple hosts.
This article walks through the fundamentals of Linux log management by introducing Rsyslog, showing how to install it on CentOS, configure facilities and severity, and demonstrate practical examples for aggregating web server access logs to a central application server.
This guide explains how to set up a lightweight database audit log platform using MariaDB's audit plugin, Rsyslog, and the LogAnalyzer web interface, covering environment preparation, plugin installation, syslog forwarding, MySQL schema creation, and LogAnalyzer configuration for real‑time monitoring and compliance reporting.
This guide demonstrates multiple ways to gather Nginx access and error logs—directly with Filebeat to Elasticsearch, via Filebeat to Logstash then Elasticsearch, and using rsyslog to forward logs to Logstash—providing step‑by‑step configurations, code snippets, and visual illustrations for each method.
Learn step‑by‑step how to gather Nginx access and error logs using Filebeat, Logstash, and rsyslog, configure each component to forward logs to Elasticsearch, visualize them in Kibana, and choose the most suitable pipeline for flexible log preprocessing and storage.
This guide walks through three practical methods for harvesting Nginx access and error logs—directly with Filebeat to Elasticsearch, via Filebeat‑Logstash‑Elasticsearch pipeline, and using Rsyslog to forward logs to Logstash—complete with configuration snippets and visual illustrations.
This guide demonstrates multiple methods for gathering Nginx access and error logs—directly with Filebeat to Elasticsearch, via Logstash for preprocessing, and through rsyslog forwarding—detailing configuration steps, required code snippets, and verification using Kibana and Elasticsearch-head.
This tutorial demonstrates how to gather Nginx access and error logs using Filebeat, Logstash, and Rsyslog, configure each component, and ship the logs to an Elasticsearch cluster for visualization in Kibana, offering three practical collection methods.
This article details the investigation and resolution of a Python RPC service startup failure caused by rsyslog issues, explains the daemonize logic with code snippets, and concludes with a lottery winner announcement.
This guide explains how to gather Nginx access and error logs using Filebeat, Logstash, and rsyslog, and forward them to an Elasticsearch cluster for analysis, covering three practical pipelines with configuration examples and deployment steps.
This guide explains three practical methods for gathering Nginx access and error logs—directly with Filebeat to Elasticsearch, via Filebeat to Logstash then Elasticsearch, and using rsyslog to forward logs to Logstash—complete with configuration snippets and visualization steps in Kibana.
This guide walks through deploying a centralized Rsyslog server on CentOS, configuring SELinux, firewall, rsyslog, Filebeat, Logstash, and Kibana to collect, process, and visualize logs from various network devices, addressing common sysadmin challenges.
Learn how to set up agent‑less log collection for Nginx using Rsyslog, forward logs via the omkafka module to a Kafka cluster, and process them with Logstash into Elasticsearch for visualization in Kibana, including installation, configuration, and testing steps.
Learn how to containerize ELK components, configure Rsyslog, deploy Elasticsearch, Logstash, Kibana, and an Nginx logging container, then visualize and query application logs—all with Docker commands and configuration snippets for a complete log‑collection pipeline.
This guide walks you through setting up an ELK stack to collect, forward, and visualize logs from Docker containers, covering Rsyslog configuration, ElasticSearch, Logstash, Kibana, and an Nginx example for end‑to‑end log monitoring.
This article walks through a real‑world Docker logging issue, detailing how syslog and rsyslog behave inside a CentOS 7 container, the failed attempts to fix it, and the eventual discovery of missing /dev/log socket and permission constraints.
This guide walks you through setting up rsyslog on two Linux hosts to collect logs into a MySQL database, installing Loganalyzer, and configuring Apache/PHP to display the logs in a user‑friendly web interface, enabling real‑time log analysis for small to medium environments.
