Linux, NGINX, Docker, and VPS Hardening
Review and strengthen production hosts so applications run with safer defaults, clearer logs, and fewer exposed edges.
Who it is for
Teams running websites, APIs, dashboards, or automation on Linux VPS infrastructure.
Scope and handoff
Hardening is scoped by host count, application count, access level, maintenance window, and the changes that can be validated safely.
Problems this addresses
- Open services and stale packages
- Weak firewall, SSH, reverse-proxy, or TLS configuration
- Containers and application processes deployed without operational guardrails
Deliverables
- Hardening plan
- Firewall and SSH review
- NGINX/TLS cleanup
- Docker and process-manager recommendations
- Rollback-aware change notes
Relevant stack
- Debian
- Ubuntu
- Kali
- NGINX
- Docker
- systemd
- PM2
- Certbot
Example scope
- Secure a Next.js VPS
- Clean up exposed administrative surfaces
- Prepare a host for production launch
Questions
Do you need root access?
Implementation usually needs privileged access. Review-only work can use read-only evidence.
Can this be done without downtime?
Changes are planned to minimize downtime, but risky service changes are scheduled deliberately.
Need this scoped for your system?
Send the target, the concern, and what outcome would make the work useful.
Contact BlueDot IT