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Gobuster

Tool manual · Kali & common usage

Web testing · Beginner · Web testing lane

BeginnerContent Discovery
Authorized usage only. Capture and inspect traffic only on systems and networks you own or have written permission to analyze.

What is Gobuster?

Gobuster brute-forces URIs, DNS subdomains, and vhosts using wordlists — content discovery for authorized web targets.

Find hidden paths, panels, and backups that browsers do not link.

Official website: Gobuster · Documentation

When do you use it?

  • After mapping a site, hunt for /admin, /backup, API paths on in-scope hosts.

When not to use it

  • Huge wordlists against production without rate limits can look like DoS.

Who uses it?

  • AppSec engineers
  • Bug bounty hunters (in-scope)
  • Penetration testers

How do you use it? (typical flow)

  1. Install Gobuster using the steps below (prefer Kali package or official installer).
  2. Confirm you have authorization for the target (lab VM, own system, or written scope).
  3. Run --help / man (or the Help section) to see current flags for your version.
  4. Start with a safe example from Basic commands against localhost or an authorized lab target.
  5. Record what you ran, what you observed, and any follow-up (filter, report, remediation).

Help & manual (like man / --help)

Every serious tool has a built-in way to look up flags. Learn these first so you are not stuck memorizing every option.

  1. 1. Help

    gobuster -h

    Global help.

  2. 2. Dir mode help

    gobuster dir -h

    Directory mode flags.

Kali Linux

Common on Kali: sudo apt install gobuster (or preinstalled on many images).

1. Installation

OSInstallation
Kali LinuxCommon on Kali: sudo apt install gobuster (or preinstalled on many images).
Linuxsudo apt install gobuster

2. Basic commands

  1. 1. Discover paths on your local lab app

    gobuster dir -u http://localhost:3000 -w common.txt

    Discover paths on your local lab app

  2. 2. Show help

    gobuster --help

    List flags for your installed version (same habit as man/--help).

  3. 3. Short help

    gobuster -h

    Alternate help flag when supported.

  4. 4. Show all options and usage

    --help

    Show all options and usage

Options / flags

OptionPurpose
--helpShow all options and usage

5. Useful features

  • dir/dns/vhost modes
  • Wordlist choice
  • Status code filtering

6. Practical examples

  1. Example 1: Discover paths on your local lab app

    gobuster dir -u http://localhost:3000 -w common.txt

    Discover paths on your local lab app

  2. Example 2: Show help

    gobuster --help

    List flags for your installed version (same habit as man/--help).

  3. Example 3: Short help

    gobuster -h

    Alternate help flag when supported.

  4. Example 4: Show all options and usage

    --help

    Show all options and usage

7. Important notes

  • Gobuster is used legitimately by security teams for authorized testing, defense validation and education.
  • Authorized targets only — labs, systems you own, or written permission.
  • Prefer reading --help / man / official docs for your installed version; flags change over time.

Related course: web application security · bug bounty hunting · Commands: /commands#burp