Rustmap is a very simple "Nmap-like" program that can scan for hosts and open TCP ports. It is mostly written for educational purposes (I wanted to learn Rust, and learn a bit more about how Nmap works) so it's quite slow and doesn't have many features.

1. Install Rust
2. cargo install rustmap

Check if a single host is up:

sudo rustmap 127.0.0.1

Scan all TCP ports for a single host:

sudo rustmap 127.0.0.1 -p

Scan all TCP ports for multiple hosts:

sudo rustmap 127.0.0.1 ::1 -p

Scan for specific ports in an address range:

sudo rustmap 127.0.0.0/8 -p 22,80,443

rustmap [OPTIONS] <addr-ranges>...

Prints help information

Prints version information

Probe ports for each host and optionally specify which ports.

Ports can be specified as a comma-separated list, or left unspecified to scan all ports.

Timeout for pinging each host and probing each port.

Parsing is provided by the parse_duration crate and supports almost any notation. E.g. 1s, 10 seconds, 1 hour, 15 minutes, 12 seconds, 10m32s112ms. [default: 1s]

IP addresses to scan.

Supports IPv4 notation (e.g. 127.0.0.1), IPv6 notation (e.g. ::1), IPv4-mapped IPv6 notation (e.g. ::ffff::1.1.1.1) and CIDR notation (e.g. 192.168.0.0/16, fe80::/10).

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