# Reconnaissance

## naabu

From here <https://github.com/projectdiscovery/naabu>

```bash
naabu -host 10.10.10.10
```

## nmap

```bash
nmap 10.10.10.10
nmap -p- 10.10.10.10
nmap -p 22,80,5000 10.10.10.10
nmap -p- --open 10.10.10.10
nmap -p- --open -v 10.10.10.10 -Pn -sS -oA nmap-output 
```

## masscan

From here <https://github.com/robertdavidgraham/masscan>

```bash
masscan 10.10.10.10
masscan 10.10.10.10 -p0-65535
masscan 10.10.10.10 -p22,80,8000-8100
masscan 10.10.10.0/24 -p0-65535
masscan 10.10.10.10 -p0-65535 -oA scan
masscan 10.10.10.10 -p0-65535 --max-rate 100000
```

## Using /dev/tcp/ip/port

```bash
#!/bin/bash

IP="10.10.10.10"

for port in $(seq 1 65535); do
        (timeout 1 bash -c "</dev/tcp/$IP/$port") >/dev/null 2>&1 && echo "Puerto Abierto: $IP:$port" &
done; wait
```

```bash
port=80
timeout 1 bash -c "echo >/dev/tcp/10.10.10.10/$port" && echo "port $port is open" || echo "port $port is closed"
```

## Tools

{% embed url="<https://github.com/six2dez/reconftw>" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://lanzt.gitbook.io/cheatsheet-pentest/port-enumeration/reconnaissance.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
