netprobe

A lightweight CLI network diagnostic toolkit written in C++17. No external dependencies — just the standard library and OS sockets.

Features

• TCP Ping — connectivity check via TCP connect probe (no root required)
• Port Scanner — scan a range of ports on any host
• DNS Lookup — resolve hostnames to IPv4/IPv6 addresses
• HTTP Probe — check HTTP status, headers, and response time
• Latency Measurement — measure and classify connection latency
• Traceroute — ICMP-based route tracing with reverse DNS

Build

mkdir build && cd build
cmake ..
cmake --build .

On Windows with MSVC:

mkdir build && cd build
cmake ..
cmake --build . --config Release

Usage

netprobe <command> <target> [options]

Commands

Command	Description
ping	TCP connect probe to host:port
scan	Scan a range of ports on a host
dns	Resolve hostname to IP addresses
http	Check HTTP status of a URL
latency	Measure connection latency
trace	Traceroute to a host (ICMP)
whois	WHOIS domain registration lookup

Options

Option	Description
-p, --port <port>	Target port (default: 80)
-r, --range <s-e>	Port range for scan (default: 1-1024)
-c, --count <n>	Number of ping probes (default: 4)
-t, --timeout <ms>	Timeout in milliseconds (default: 3000)
-m, --max-hops <n>	Max hops for traceroute (default: 30)
-j, --json	Output results as JSON
-h, --help	Show help
-v, --version	Show version

Examples

TCP Ping:

netprobe ping google.com -p 443 -c 10

Port Scan:

netprobe scan 192.168.1.1 -r 20-1000

DNS Lookup:

netprobe dns github.com

HTTP Probe:

netprobe http http://example.com

Latency Check:

netprobe latency google.com -p 443

Traceroute:

netprobe trace google.com
netprobe trace 8.8.8.8 -m 20

WHOIS Lookup:

netprobe whois github.com
netprobe whois example.com --json

JSON Output (works with any command):

netprobe dns github.com --json
netprobe scan 192.168.1.1 -r 20-80 --json

Platform Support

• Windows (Winsock2)
• Linux
• macOS

License

MIT

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developed by qorex