Syslog & Rsyslog Consulting

Zwiegnet provides advanced syslog and rsyslog expertise for building robust, centralized logging infrastructures essential for troubleshooting, security auditing, and compliance. We specialize in rsyslog — the high-performance, feature-rich successor to classic syslog — on Linux and Unix systems.

Our logging services include:

• Centralized Logging Architecture – Design of scalable log collection topologies with remote forwarding, buffering, and multiple log servers.
• Rsyslog Configuration – Advanced rulesets, templates, actions, queues (disk/memory), and module usage (omfwd, imudp, imtcp, imrelp).
• Security & Encryption – TLS-encrypted transport (gtls), RELP for reliable delivery, access controls, and protection against log spoofing.
• Performance Tuning – High-volume logging optimization, queue sizing, batching, asynchronous writing, and rate limiting.
• Output Integration – Forwarding to Elasticsearch/Logstash, Graylog, Splunk, databases (PostgreSQL/MySQL), or file-based storage with rotation.
• Log Parsing & Filtering – Property-based filters, mmnormalize, mmjsonparse, and custom parsing with Lua or external scripts.
• High Availability – Redundant log servers, failover configurations, and disk-assisted queues for zero log loss.
• Monitoring & Alerting – Rsyslog statistics, integration with Prometheus, and real-time log anomaly detection.
• Compliance & Auditing – Immutable logging, timestamping, and configurations for PCI, HIPAA, SOX, or GDPR requirements.
• Troubleshooting & Break-Fix – Diagnosis of dropped messages, buffer overflows, facility/priority issues, and remote logging failures.

Strong centralized logging is critical for operational visibility and security — we ensure your logs are complete, secure, and readily available.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to experienced rsyslog specialists with large-scale production deployments.