Server Hardening
Lock down Linux systems and reduce exposed attack surface.
- SSH protection
- Firewall rules
- Fail2Ban
Cybersecurity, infrastructure hardening, and operational monitoring
3Bytes focuses on practical defenses for servers, websites, email, admin panels, DNS, SSL, remote access, monitoring, backups, and incident readiness.
Email Security
Improve deliverability and reduce spoofing risk.
- SPF / DKIM / DMARC
- Postfix / Dovecot
- TLS configuration
Monitoring
Detect outages and operational issues before they damage the business.
- HTTP checks
- SSL expiry alerts
- Incident logs
Application Security
Secure CRMs, portals, dashboards, APIs, and admin areas.
- Authentication
- RBAC
- Audit trails
DNS & SSL
Clean domain routing, HTTPS, SSL automation, and DNS hygiene.
- DNS audits
- SSL automation
- Cloudflare planning
Backup & Recovery
Backups, restore planning, documentation, and failure readiness.
- Database backups
- Snapshots
- Runbooks