Home Network & IoT
OpenWrt
Linux-based free firmware for many consumer routers.
Authorized testing only. Practice on systems you own, isolated labs, or targets with written permission. Unauthorized access is illegal.
Incorrect flashing can brick hardware — follow device-specific guides.
When
Unlocking VLANs, packages, and better firewalling on supported hardware.
How
Verify device support; flash carefully; configure zones and wireless securely.
Why
Turns mediocre ISP routers into teachable secure gateways.
Commands & usage
# Flash per device wiki; then:
opkg update && opkg install luci-app-firewall
logread -f
Commands are educational examples. Adapt hosts, paths, and rates to your authorized scope.
Tags
Related in Home Network & IoT
Zenmap
Official Nmap GUI for visual topology and profile-based scanning.
Fing
Consumer-friendly network scanner for device inventory and internet checks.
Advanced IP Scanner
Fast Windows LAN scanner with remote RDP/HTTP shortcuts for found hosts.
nbtscan
Scans for NetBIOS name information on Windows/Samba hosts.
avahi-browse / dns-sd (mDNS)
Discovers mDNS/Bonjour services (Chromecast, printers, HomeKit, NAS).
ss / netstat / lsof
Show listening ports and connections on your own machines.