#Logs
2 posts
11 min read
RHEL Intermediate #5: Log Management — journald, rsyslog, log rotation
RHEL 9 uses journald as the primary log tool and rsyslog as the secondary, with text log files rotated automatically by logrotate. This post covers journald's retention policy and disk usage control, rsyslog's continuing role as the old-guard standard, the flow of collecting logs on a central server, and how to write logrotate rules from scratch — all from an operational perspective.
10 min read
AWS Basics #7: CloudWatch Intro — Logs and Metrics
CloudWatch Logs / Metrics / Alarms / Dashboards, log groups and retention, Metric Filters, and the basics of Logs Insights queries — the eyes of every production system.