Manageengine Netflow Analyzer Installation Guide Top Site

Post-Installation Configuration

After installation, perform the following steps:

Conclusion

Choose your deployment path.

Once the installation completes, you can start the server manually or install it as a daemon/service. manageengine netflow analyzer installation guide top

To start manually: Navigate to the bin directory inside the installation folder:

cd /Path/To/NetFlow/bin
./run.sh

To run as a service (Systemd): ManageEngine provides scripts to install it as a service for auto-startup. Check the bin directory for linkAsService.sh or consult the official documentation for your specific Linux distro. Conclusion

Even with a perfect guide, issues occur. Here’s how to solve them fast.

| Problem | Likely Cause | Top Fix | | :--- | :--- | :--- | | Port 8080 already in use | Another web server (Tomcat, Jenkins) is running. | During installation, change web port to 9090 or 8181. Or stop the conflicting service. | | "Database connection refused" | External DB hostname wrong or firewall blocking port 3306. | Run telnet your-db-server 3306 from NFA server. Open firewall rules. | | No graphs: "No data" | Router not exporting; wrong UDP port; ACL blocking. | On router: show ip flow export. On NFA: Admin → Flow Import → Check receiver status. | | High CPU after 2 days | Java heap too small; flow retention too long. | Increase -Xmx (see Part 3). Reduce raw data retention to 7 days. | | Upgrade fails from older version | Manual customizations in mysql.conf. | Backup mysql.conf, run the installer, then restore only your custom params. | Choose your deployment path