For example: chmod a+x ManageEngine_NetFlowAnalyzer_64bit.bin .
sudo systemctl daemon-reload sudo systemctl enable netflow sudo systemctl start netflow
Verify or modify the web server port (Default: 8060). Click . Step 4: Complete the Installation Review the pre-installation summary.
Note: For security purposes, change the default administrator password immediately upon your first login. Configuring Routers and Switches to Export Flows manageengine netflow analyzer installation guide
| Port Name | Default Port | Protocol | Purpose | |-----------|--------------|----------|---------| | Web server port | 8060 | TCP | Browser access to the web UI | | NetFlow listener port | 9996 | UDP | Receives flow exports from routers | | Embedded database (PostgreSQL) | 13306 | TCP | Internal database connection | | MSSQL (if used) | 1433 | TCP | Connection to external SQL Server | | SNMP | 161 | UDP | Device discovery and interface naming |
| Problem | Solution | |---------|----------| | Port 80/443 already in use | Stop IIS ( iisreset /stop ) or Apache. Change ports during install. | | Java out of memory error | Edit bin/netflow.sh (Linux) or bin/netflow.bat (Windows): increase -Xmx value (e.g., -Xmx4096m ). | | No flows appearing | Verify device is sending flows ( debug ip flow export on Cisco). Check firewall (UDP 9999/2055). | | Web UI slow | Increase RAM allocation and move database to SSD. | | Installation fails on Linux | Ensure libc6 and libssl are installed. Use --force if needed. |
: Recommended for large-scale enterprise deployments. You must configure this during the initial setup or via the DB Configuration tool after installation. Firewall.cx 4. Configuring Flow Export For example: chmod a+x ManageEngine_NetFlowAnalyzer_64bit
: 9996 (UDP) for receiving exports from routers. Database Port : 13306 (PostgreSQL) or 1433 (MSSQL). 2. Installation on Windows
Before diving into the installation, it helps to understand exactly what this tool does and why you might need it. ManageEngine NetFlow Analyzer is a feature-rich solution designed to provide deep visibility into your network bandwidth and traffic patterns. It ingests and analyzes data exported via NetFlow, sFlow, IPFIX, J-Flow, and other flow protocols.
Click .
When the BIN installer complains about insufficient temp space, re‑run it with the -is:tempdir option, specifying an existing directory with adequate space:
# For CentOS/RHEL sudo yum update -y sudo yum install -y wget unzip
I can provide tailored scripts or fine-tuning parameters based on your setup. Share public link Change ports during install
Ravi had always liked quiet mornings. Before the office hummed with meetings and the helpdesk lit up with tickets, he liked to sit with a cup of chai and imagine systems as living cities—routers were crossroads, switches were bridges, and servers were apartment blocks full of busy tenants. Lately, traffic had been the problem: mysterious slowdowns at odd hours, departments blaming each other, and packets piling up like late commuters. He needed visibility, a window into the city’s flow.
Step 5 — Tuning Not everything was perfect. Interfaces generated too many flows; noisy devices crowded the view like street vendors. He applied filters, excluded management traffic, and grouped interfaces by department. He created a report to show top talkers and set an alert for abnormal spikes. Each tweak was a small triumph: fewer false alarms, clearer patterns.