How can a NAS be used as a download device? qBittorrent I went through everything from installing to protecting seeds, and the temporary password was the most annoying

my Feiniu NAS at home has been running for over two years, with stable photo saving and Docker running. The only trick I've always used for downloading is the one I always used: leave the computer running, then copy it to the NAS after downloading. Last month, I made up my mind to leave the download task entirely to the NAS. Having a 24-hour running device is useless. But after installing qBittorrent, I got stuck at the first level: I couldn't log in to the WebUI no matter what. After some struggling, I realized the new version has removed the default password. This article will cover the entire process from installation to preservation, covering all the pitfalls for you.

first about choosing a model: the package, Docker, and Transmission. How do you choose

Synology users' first reaction is the Download Station in the suite center, so I advise you not to rush. It hasn't stopped updating and will still release patches in 2025, but the problems are a few old issues: the built-in search engine frequently fails, and all the searches show are dead links; Poor support for PT sites, and statistics often don't match; The interface hasn't been significantly changed for years. Feiniu was even more straightforward—there was no official download kit in the app center.

so now, the mainstream approach in the NAS community is one path: Docker with qBittorrent. Fully featured, with an interface almost identical to the uTorrent that everyone had back then. BT, PT, magnetic, and RSS subscriptions are fully supported, so it works the same on any NAS after installation. previous article on Starting Docker discussed the concepts of mirroring, port mapping, and directory mounting. This article serves as a practical review. If that article isn't enough, I've written the full version of hardware selection and application deployment too.

by the way, another candidate Transmission: it uses very little resources and runs quietly. Many veterans in the PT community use it specifically for conservation. The downside is that its functions are too simplistic, making it inconvenient to manage large volumes of tasks. My suggestion is to go straight to qBittorrent the first time you try it. When you have dozens of devices and just want to quietly upload them, consider adding a Transmission device.

got stuck on the first level after installation: the password is no longer called adminadmin

Docker installing qBittorrent itself is not difficult: pull the Linux Server image, map the WebUI port to 8080, map the BT port to 6881, configure the directory and mount it, and the container will be launched. The real trick is behind — when the browser opens the http://NAS IP:8080, a login window pops up. I habitually enter admin plus adminadmin, but the password is incorrect. I replaced it three times and none of them were right; at one point, I thought the container was broken.

after looking around, I found out that starting from version 4.6.1, qBittorrent removed the default password for security reasons. Each startup randomly generates a temporary password and prints it in the container log. Take Feiniu as an example: on the container page, click on the log and find this line:

The WebUI administrator password was not set. A temporary password is provided for this session: x8f2kq9m

The last string at the end of the

is the temporary password. The admin account, log in, and the first thing you do is go to the Web UI page in Settings to change the password to your own. Note that this password is for "this session." When the container restarts, it will be replaced with a new one, so don't expect to use it forever by remembering it; changing it is the only way to fix it once and for all. If one day you forget the password you set too, go to the configuration directory and delete the line starting with 'Password' in qBittorrent.conf. Restarting the container will send you a new temporary password.

directory planning is the real deal: three folders, don't pile them all together

log in, don't rush to download anything. Spend ten minutes planning the table of contents to save a lot of trouble later. My division is divided into three folders: Downloading, Completed, and Finished Section. Downloading is under 'Downloading', and after finishing, qBittorrent automatically removes 'Completed'. Only the manually organized version enters the 'Finished Products' section. The advantage of this division is that all the mess left behind by the power outage or dead seeds is locked under 'Downloading,' so it won't get mixed with the organized stuff.

Mounting

directory is a unique pitfall in the Docker edition: the path you see in the container and the actual path on your NAS are two different sets. For example, if I create a shared directory on my NAS with /vol1/下载, and I plug it into the container and write /downloads, then all directories in qBittorrent will have paths starting with /downloads. If you enter the actual NAS path, it won't be found. This the article about mounting in the directory explained the principle. In practice, it's just "left NAS, right container" and matching each other, without reversing the layout.

which block to download is important. I use an old 256GB SSD as a dedicated download drive, and I regularly transfer it to a mechanical drive for archiving. The reason is written in the SSD about caching: mechanical drives can't handle long-term slow downloads, so removing the cache disk as a download drive makes the most of it. If you only have a mechanical drive, it can also be used, but during read/write periods, the disk will take over.

Speed Limits and Scheduling: Don't Let It Eat Up All Your Family's Net

The most annoying thing about

download devices: if you don't have restrictions, it can completely consume your broadband, leaving everyone at home scrolling through videos in circles. I suffered this before—I downloaded it while AFK over the weekend, and my mom called to ask if my home network was broken. So after installation, there are three things you must do:

Speed Limit entry, on the Speed Settings page, just check the download restrictions and upload restrictions and enter the numbers. Schedule Speed Limits are enabled on the same page, with each set set for "Fast Period" and "Slow Period." There's another counterintuitive trap in the upload slot: when doing this, upload speed just won't go up. Go to the connection page and uncheck 'Apply speed limit to μTP protocol.' Many people get slowed by this check.

PT Seedling: If the settings are not changed, the seed will stop automatically after planting

More than half of the people who

install and download consoles are playing PT. PT sites rely on sharing rates: you download and consume them, upload and restore them, but if you only download but don't share, you'll quickly get banned. So NAS is a perfect match for this job—24-hour startup, dedicated upload lines, and sufficient hard drive support. But qBittorrent's default setting is 'download as soon as it starts.' When the sharing rate is a certain point, it automatically stops, which is fatal for PTs—your upload will stop.

modification: Set the seeding restrictions on BitTorrent pages by checking both the 'When sharing rate is reached' and 'Seeding time reached' fields to ignore. This way, after the task is completed, seeding will be permanent. There are two accompanying actions for PT: First, the qBittorrent listening port must be forwarded on the router. The connectivity indicator turns green, so others can connect, and your upload volume will increase. The article on how to configure port forwarding port forwarding has complete steps. Before forwarding, remember to set a static IP to the NAS; Second, create categories: each PT site and category has a save directory, showing how much seed is fed and uploaded at a glance.

conservation has an unavoidable cost: the hard drive can never go to sleep. As long as the seed is hanging, peers come to connect from time to time. The hard drive wakes up every few minutes, which is even more damaging than not sleeping. I caught the in the hard drive sleeping post that qBittorrent is the prime suspect for copying drives. Think clearly: you can't have both a seed conservator and a dormant device. You either have to accept the hard drive running 24/7, or move your precious seeds to a single machine to hang them. By the way, I calculated that the electricity cost for running 24 hours a day a year, and the N100 dual drive costs about 100 yuan per year, which isn't expensive.

remote addition via mobile phone and personalized finishing

the most comfortable way to use it daily: Bookmark WebUI addresses in your mobile browser. When someone sees something they want to download outside, they copy the magnet chain, open WebUI and stick it in. The NAS at home starts running, and the items are already in the directory when they arrive. For convenience, use RSS subscriptions—the episodes you follow are automatically downloaded and crawled, so you don't have to do anything yourself. If you're lazier, previously wrote about installing an intelligent system to automatically find and download , which is an advanced method. Get familiar with the manual setup first.

How do you watch movies and TV shows

the next drop? Install Jellyfin and scan the 'Finished Products Section' directory to watch it on TV. Jellyfin that article is written in detail from scraping to transcoding. Downloading, organizing, and viewing a single cable—this is the complete closed loop of a NAS as a downloader.

who deserves trouble? Let me list them clearly for you:

step-by-step for you: install containers, flip logs, use temporary passwords to change passwords, create three directories and mount them, copy the speed limit meter as is, use PT to limit and port forwarding, add your mobile WebUI to the homepage, run it overnight to check hard drive usage and upload speed, and then batch send tasks to the top if everything works well. Also, one thing to mention: you should weigh the copyright risks of BT download resources yourself. Every PT site has its rules written in the announcement—read them before you go. How do you choose consumables like hard drives? the selection article have a bill.