- nginx.service active (running)
- mysql.service active (running)
- ufw.service active (running)
- certbot.timer active (waiting)
OPERATOR_PROFILE
I'm a DevOps-focused systems professional with hands-on experience managing and troubleshooting Linux server infrastructure and hosting environments. I specialize in keeping systems running reliably, securely, and efficiently — from initial server provisioning to long-running operational health.
My work spans the full infrastructure stack: web server configuration, complex network diagnostics, SSL lifecycle management, and zero-downtime database migrations. Every server I touch is treated as production — because in this field, it usually is.
- linux-admin.serviceServer administration & hardening
- infra-troubleshoot.serviceHosting infrastructure diagnosis
- ssl-manager.serviceCertificate installation & renewal
- dns-config.serviceDNS configuration & propagation
- mail-server.serviceSMTP, SPF, DKIM troubleshooting
- db-migration.serviceMySQL/MariaDB migration & validation
- network-ops.serviceNetwork & firewall configuration
- app-debug.serviceWebsite & application troubleshooting
PERFORMANCE_METRICS
COMMIT_PULSE
RUNNING_SERVICES
SYSTEM_LOGS
Hardening Your Linux Server: A Practical Checklist
A step-by-step walkthrough of essential security measures before going to production — SSH key enforcement, fail2ban, and kernel parameter hardening.
cat postDebugging SMTP Delivery Failures: Where to Start
Email delivery issues are notoriously opaque. A systematic framework — MX verification, log analysis, and blacklist checks — that cuts diagnosis time in half.
cat postNginx vs Apache: Choosing the Right Web Server
When Nginx's event-driven model wins, when Apache's .htaccess flexibility matters, and how to choose for your specific hosting stack.
cat postSSL Certificate Management at Scale
Let's Encrypt automation with Certbot, wildcard certificate strategies, and renewal monitoring across dozens of domains without the panic.
cat postBash Scripts Every Sysadmin Should Have
Battle-tested scripts for disk monitoring, log rotation, user management, and automated backup validation that save hours every week.
cat post