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It is a client/server system that allows users to access files across a network and treat them as if they resided in a local file directory.
**Default port**: 2049
```text
2049/tcp open nfs 2-3 (RPC #100003
```
## Enumeration
### Useful nmap scripts
```bash
nfs-ls #List NFS exports and check permissions
nfs-showmount #Like showmount -e
nfs-statfs #Disk statistics and info from NFS share
```
### Useful metasploit modules
```bash
scanner/nfs/nfsmount #Scan NFS mounts and list permissions
```
### Mounting
To know **which folder** has the server **available** to mount you an ask it using:
```bash
showmount -e <IP>
```
Then mount it using:
```bash
mount -t nfs [-o vers=2] <ip>:<remote_folder><local_folder> -o nolock
```
You should specify to **use version 2** because it doesn't have **any****authentication** or **authorization**.
**Example:**
```bash
mkdir /mnt/new_back
mount -t nfs [-o vers=2] 10.12.0.150:/backup /mnt/new_back -o nolock
```
## Permissions
If you mount a folder which contains **files or folders only accesible by some user** \(by **UID**\). You can **create****locally** a user with that **UID** and using that **user** you will be able to **access** the file/folder.
## NSFShell
To easily list, mount and change UID and GID to have access to files you can use [nfsshell](https://github.com/NetDirect/nfsshell).
<details><summary><strong>Support HackTricks and get benefits!</strong></summary> Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)! Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family) Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com) **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.** **Share your hacking tricks submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.** </details>