Antivirus on Linux

Although Linux is inherently secure, antivirus protection is essential for file servers, email gateways, web proxies, and environments sharing files with Windows clients. Zwiegnet specializes in ClamAV — the leading open-source antivirus engine — and other tools to provide robust malware detection and prevention on Linux systems.

Our antivirus services include:

• ClamAV Deployment – Installation of ClamAV (clamd, freshclam), database optimization, and automated signature updates.
• On-Access Real-Time Scanning – Configuration of clamav-on-access (fanotify or Dazuko/inotify) for immediate file scanning on servers and desktops.
• Email Gateway Protection – Integration with Postfix (Amavis + ClamAV), Exim, or Sendmail for scanning inbound/outbound mail and attachments.
• Web & File Server Scanning – Automatic scanning of uploaded files in Apache/NGINX, Samba shares, or Nextcloud/Owncloud environments.
• Scheduled & On-Demand Scans – Cron-based full system scans, quarantine setup, and custom scan policies.
• Signature Management – Use of official CVD, third-party signatures (Sanesecurity, SecuriteInfo), and safe browsing databases.
• Performance Tuning – Multi-threaded clamd configuration, memory limits, scan exclusions, and resource optimization for production servers.
• Logging & Alerting – Integration with rsyslog, email/SNMP alerts on detections, and monitoring via Nagios/Prometheus.
• Quarantine & Remediation – Automated quarantine, notification workflows, and safe cleanup procedures.
• Alternative Tools – Evaluation and deployment of commercial options (Sophos, ESET, Comodo) when required by policy.

We focus on practical, layered defense — combining antivirus with secure configurations, timely patching, and user education to minimize risk.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to Linux security specialists with extensive ClamAV production experience.