SOLLER.LV

Linux infrastructure

VPS Security & Bot Protection

Protection for Linux VPS and web applications against malicious bots, scrapers, brute-force attacks and abusive application-layer traffic.

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Supported ecosystem

DebianUbuntuNginxApachePHP-FPMHestiaCP

Controls are selected from the server’s actual traffic, stack and operational constraints.

Server hardening

  • security audit
  • SSH hardening and key-only access
  • firewall: iptables / nftables / ipset
  • Fail2ban and network filtering

Application-layer protection

  • rate limiting
  • malicious bot and scraper blocking
  • expensive search/filter URL protection
  • PrestaShop, WordPress and Joomla mitigation

Investigation

  • access and error log analysis
  • PHP-FPM load investigation
  • crawler behaviour analysis
  • monitoring and automated rules

Mail security

  • Exim / Dovecot hardening
  • SpamAssassin
  • SPF / DKIM / DMARC review
  • mail log analysis

Scope and limitations

We focus on server hardening, bot mitigation and application-layer traffic controls.

Complete protection from volumetric L3/L4 DDoS attacks normally depends on the hosting, network or CDN provider. Server-side controls cannot replace upstream capacity and filtering.

Typical engagement

  1. Review exposure, services and recent logs.
  2. Identify attack patterns and costly endpoints.
  3. Apply staged firewall, rate-limit and application rules.
  4. Verify legitimate customer and crawler access.
  5. Document changes and monitoring steps.