Linux Log Rotation Strategies for High Volume Application Logs
For high volume application logs, rotate by size as well as by time, compress old files, limit retention, and prefer telling the application to reopen its log...
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MySQL Slow Query Log Analysis for Production Tuning
The MySQL slow query log records statements that run longer than a threshold, and analyzing it shows which queries cost the most in total time, not just which...
Linux Disk Space Monitoring and Inode Exhaustion Prevention
A Linux filesystem can run out of space in two ways: it can run out of blocks, which is what df -h shows, or it can run out of inodes, which is shown by df -i....
Linux Systemd Service Hardening Options for Network Daemons
Systemd can sandbox a network daemon with a few unit file options: run it as an unprivileged user, set NoNewPrivileges, make most of the filesystem read-only...
Git Branch Protection Rules Best Practices for Small Teams
Small teams should protect the main branch with a short list of rules: require pull requests, require passing status checks, block force pushes and deletions,...
AI Agent Tool Schema Minimization for Lower Token Usage
Large tool descriptions consume context even when tools are never invoked. Start with a clearly defined correctness invariant and workload. Identify the state...
RAG Citation Verification Against Retrieved Source Passages
An LLM can generate plausible citations that do not support the claim being made. Start with a clearly defined correctness invariant and workload. Identify the...
DNS CAA Records and Certificate Issuance Controls
CAA DNS records communicate which certificate authorities are authorized to issue certificates. Start with a clearly defined correctness invariant and...
API Idempotency Key Design for Safe Payment Retries
Payment APIs may receive repeat requests after network timeouts even when the first charge succeeded. Start with a clearly defined correctness invariant and...