SSH
Server Hardening
Lock down Linux systems and reduce exposure.
- SSH protection
- Firewall rules
- Fail2Ban
Cybersecurity, infrastructure hardening, and operational monitoring.
3Bytes focuses on practical defenses: secure servers, resilient email, protected admin access, clean DNS, monitoring, backups, and incident readiness.
MAIL
Email Security
Improve deliverability and reduce spoofing risk.
- SPF / DKIM / DMARC
- Postfix / Dovecot
- TLS configuration
MON
Monitoring
Know when systems fail before clients notice.
- HTTP checks
- SSL expiry alerts
- Incident logs
APP
Application Security
Secure portals, CRMs, dashboards, and admin panels.
DNS
DNS & SSL
Correct DNS, HTTPS, certificates, redirects, and domain hygiene.
DR
Backup & Recovery
Plan for failure, restore fast, and document recovery steps.