# NFS

## **Introduction**

> * Network File System (NFS) is a network file system developed by Sun Microsystems and has the same purpose as SMB.
> * Its purpose is to access file systems over a network as if they were local. However, it uses an entirely different protocol.
> * NFS' default port is 2049 TCP

***

## **Basic Enumeration & Interaction**

> * When footprinting NFS, the TCP ports 111 and 2049 are essential.
> * We can also get information about the NFS service and the host via RPC (2049)

<table><thead><tr><th width="256">Command</th><th>Description</th></tr></thead><tbody><tr><td>Use nmap scripts to find connected NFS shares names</td><td>sudo nmap --script nfs* &#x3C;IP> -sV -p111,2049</td></tr><tr><td>Show Available shares on target IP</td><td>showmount -e &#x3C;IP></td></tr><tr><td>Mount (locally) an available share</td><td>sudo mount -t nfs &#x3C;IP>:/target-NFS/ /your-target-dir -o nolock</td></tr><tr><td>Unmount a previously mounted share</td><td>sudo umount ./target-dir</td></tr></tbody></table>


---

# 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://notes.sfoffo.com/protocols-and-services/nfs.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.