> For the complete documentation index, see [llms.txt](https://thmflags.gitbook.io/thm-walkthroughs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thmflags.gitbook.io/thm-walkthroughs/difficulty-easy/nmap/task-2-introduction.md).

# Task 2 - Introduction

## Task 2 Introduction

### What networking constructs are used to direct traffic to the right application on a server?

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`ports`

</details>

### How many of these are available on any network-enabled computer?

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`65535`

</details>

### **\[Research]** How many of these are considered "well-known"? (These are the "standard" numbers mentioned in the task)

{% embed url="<https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers#Well-known_ports>" %}
Well-known ports: The port numbers in the range from 0 to 1023
{% endembed %}

{% hint style="warning" %}
**HINT:** Search in Google "How many well-known \_\_\_\_ are there", substituting in your answer to Question 1.
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`1024`

</details>