# Torrenting and P2P Safety

---

### 1. Goal

This guide covers safe use of BitTorrent and other peer-to-peer downloads for legitimate files such as Linux ISOs, public domain media, open datasets, game patches, and large community archives.

Do not use this guide to find, distribute, or hide illegal downloads.

---

### 2. Understand the Tradeoff

Torrenting is efficient because everyone shares pieces of a file with everyone else.

That also means:

* peers can see your IP address;
* public trackers can be noisy;
* fake torrents exist;
* archive contents may not match the title;
* some networks block or throttle P2P traffic.

Use P2P when the source is trusted and the file is worth distributing that way.

---

### 3. Use Trusted Sources

Prefer torrents linked by:

* official Linux distribution websites;
* public domain archives;
* academic dataset pages;
* official game or mod communities;
* reputable open-source projects.

Avoid torrents with:

* no source page;
* no comments or release notes;
* suspiciously tiny file sizes;
* executable files pretending to be media;
* password-protected archives;
* instructions to disable security tools.

---

### 4. Recommended Apps

Use a client that is maintained, widely used, and does not bundle adware.

* **qBittorrent:** best general recommendation for desktop use. It is open source, familiar, and has a network-interface binding setting.
* **Transmission:** good lightweight option, especially on Linux, macOS, servers, and simple setups.

Avoid clients known for bundled ads, browser hijacks, crypto miners, or forced "speed up" utilities.

Official links:

* qBittorrent: `https://www.qbittorrent.org`
* qBittorrent options wiki: `https://github.com/qbittorrent/qBittorrent/wiki/Explanation-of-Options-in-qBittorrent`
* Transmission: `https://transmissionbt.com`

---

### 5. Client Settings

In your torrent client:

* disable automatic startup unless you need it;
* set download and upload limits;
* choose a specific download folder;
* disable automatic execution or opening of files;
* review port forwarding deliberately instead of enabling random network changes;
* keep the client updated.

Use one dedicated folder for incomplete downloads and another for completed downloads.

---

### 6. qBittorrent Baseline Settings

Good starting point:

* **Downloads:** set separate incomplete and completed folders.
* **Connection:** disable random port on every startup if you need stable port forwarding.
* **Speed:** set upload limits so the client does not saturate your connection.
* **BitTorrent:** disable anonymous mode unless you understand the tradeoffs.
* **Advanced:** bind the network interface if using a VPN.
* **RSS/Search plugins:** leave disabled unless you need them.

If a VPN is part of your setup, the important setting is the network interface binding. A kill switch is useful, but client binding is the cleaner torrent-specific guardrail when supported.

---

### 7. VPN Reality Check

A VPN can hide your home IP address from peers, but it does not make unsafe downloads safe.

VPNs do not:

* verify files;
* remove malware;
* make illegal sharing legal;
* protect you if you log into personal accounts while using the same browser session;
* fix bad operational habits.

If you use a VPN, confirm that your torrent client is bound to the VPN interface if your client supports it. That prevents traffic from falling back to your normal connection if the VPN drops.

---

### 8. After Downloading

Before opening files:

1. Let the torrent finish fully.
2. Recheck or force recheck if the client supports it.
3. Scan suspicious files.
4. Verify checksums if the source provides them.
5. Move completed files into a clean library folder.

Keep seeding only when you understand what you are sharing and are comfortable sharing it.

---

### 9. Good Uses for P2P

P2P is useful for:

* Linux ISOs;
* public datasets;
* public domain films and books;
* independent game builds;
* large mod packs from trusted communities;
* community mirrors for open projects.

For small files, direct downloads are often simpler and easier to verify.