# Recon

## Related

[Bug bounty/Tools](/the-pentesters-cheat-sheet/bug-bounty/02-tools.md)

## Subdomain discovery

### SSL/TLS Certificates

Find subdomains via ssl-certificates.\
E.g. using [crt.sh](https://crt.sh)

### Google

Exclude default `www` subdomain and look for any other subdomains.

```
-site:www.domain.com site:*.domain.com
```

### dnsrecon

```bash
dnsrecon -t brt -d <domain>
```

### Sublist3r

> Sublist3r is a python tool designed to enumerate subdomains of websites using OSINT.\
> [Sublist3r](https://github.com/aboul3la/Sublist3r)

```bash
/sublist3r.py -d <domain>
```

### Non-public DNS

E.g. private DNS server or specified locally in `/etc/hosts`

### fuff

See also [Webserver scanning](/the-pentesters-cheat-sheet/enumeration/03-webserver-scanning.md)

```bash
ffuf -w <wordlist-file> -H "Host: FUZZ.domain.com" -u http://<ip>
```


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