SterJo Portable Firewall, now known as NetStalker, is a lightweight network protection tool from SterJo. This free USB firewall allows you to monitor network access, block unwanted connections, and manage traffic directly from a portable device. Its tabbed interface includes Activity, Policy, Log, and History views for easy oversight of network events.
SterJo Portable Firewall (NetStalker) | USB Network Protection
This portable firewall is perfect for users who need security on the go. Simply extract it to a USB drive or other removable storage and launch it on any Windows PC without installation. The program helps prevent unauthorized access and gives a clear overview of active network connections.
Key Features
- USB Portable: Run directly from a flash drive or external storage device.
- Monitor Network Activity: Real-time tracking of incoming and outgoing connections.
- Tabbed Interface: Separate Activity, Policy, Log, and History tabs for organized monitoring.
- Block Unwanted Connections: Easily close unauthorized or suspicious network sessions.
- Lightweight: Minimal resource usage, ideal for older or low-spec systems.
- Free Version Available: Option to upgrade to a Pro version for additional features.
Usage Tips
- Run the program from a USB drive to maintain network monitoring portability.
- Use the Policy tab to create rules for blocking specific applications or IP addresses.
- Check the Log and History tabs regularly to review previous connections and activity trends.
- Combine with antivirus software for comprehensive system protection while on public networks.
Specifications & Download
- Developer: SterJo Software
- Official Website: SterJo NetStalker Page
- Extracted Size: 1.21 MB
- License: Freeware (optional Paid Pro version)
- Portable: Yes, runs directly from USB
- Operating System: Windows
- Download: Get SterJo Portable Firewall
Final Take
SterJo Portable Firewall / NetStalker is a compact and effective USB firewall solution. Its portability, simple interface, and free availability make it an excellent choice for users who need network monitoring and control on the go. Whether for personal or professional use, this tool provides a lightweight way to keep your connections safe.