Jellyfin in Container Manager on a Synology NAS (No Hardware Transcoding)

Last updated on 1 January 2025

In this guide I am going to take you through the setup of Jellyfin in Container Manager. Please note this guide is for anyone that does not have Hardware Transcode abilities on their NAS. You can see the other guide for those that do.

Let’s Begin

As usual, it’s important you complete the three preceding guides which will get your folder structure, docker user and bridge network setup.

• Docker Package, SSD and Memory Recommendations
  
• Step 1: Directory Setup Guide
• Step 2: Setting up a restricted Docker user
• Step 3: Setting up a Docker Bridge Network (synobridge)

Folder Setup

Let’s start by getting some folders set up for the container to use. Open up File Station create the following.

/docker/projects/jellyfin-compose
/docker/jellyfin

Container Manager

Next we are going to set up a ‘Project’ in Container Manager. Open up Container Manager and click on Project then on the right-hand side click ‘Create’.

In the next screen we will set up our General Settings, enter the following:

Next we are going to drop in our docker compose configuration copy all the code in the box below and paste it into line ‘1’ just like the screenshot.

What on earth is a Docker Compose?
Docker Compose allows us to define how Docker should set up one or more containers within a single configuration file. This file is yaml formatted and Container Manager uses the Projects feature to manage them.

services:
  jellyfin:
    image: linuxserver/jellyfin:latest
    container_name: jellyfin
    environment:
      - PUID=1234 #CHANGE_TO_YOUR_UID
      - PGID=65432 #CHANGE_TO_YOUR_GID
      - TZ=Europe/London #CHANGE_TO_YOUR_TZ
      - JELLYFIN_PublishedServerUrl=SEE_TABLE_BELOW
      - UMASK=022
    volumes:
      - /volume1/docker/jellyfin:/config
      - /volume1/data/media:/data/media
    ports:
      - 8096:8096/tcp #web port
      - 8920:8920/tcp #optional
      - 7359:7359/udp #optional
    network_mode: synobridge
    security_opt:
      - no-new-privileges:true
    restart: always

The two optional ports in the above can be removed if you will not use them. 7359 is for automated discovery of Jellyfin by the apps, and 8920 is the HTTPS port which is useful if not using the reverse proxy later in the guide.

Environment Variables

We need to make some changes in order for the container to have the correct permissions to save its configuration files and to have access to your media.

Volumes

We can now pass through our file paths into the container they are mounted using the volume’s section of the compose file.

I have pre-filled this section to pass the correct paths, the only thing that you may need to change is the /volume1/ if your file paths are on a different volume.

Click ‘Next’

You do not need to enable anything on the ‘Web portal settings’ screen click ‘Next’ again.

On the final screen click ‘Done’ which will begin the download of the container images and once downloaded they will be launched!

The image will now be downloaded and extracted. You should see ‘Code 0’ when it has finished.

You will now see your Jellyfin running and should have a green status on the left-hand side.

Firewall Exceptions

(Skip if you don’t have the Firewall configured)

If you have the Synology Firewall enabled please see this additional guide for further info on exceptions and correct set up.

Jellyfin Initial Setup

After a few minutes you should be able to access the server and go through the initial Jellyfin setup by going to the IP of your NAS in your browser followed by port 8096.

e.g. 192.168.0.30:8096

When adding movies or shows they will be located in the /data/media folder.

Remote Access

If you are going to be using your set-up outside your LAN you will also need to enable the following options to allow access and also to restrict bandwidth

• Allow remote connections to this server

• Streaming

In order to limit upload bandwidth you can also set an overall limit for streams, this is useful if you or other users will be trying to play back files larger than your upload bandwidth can handle

External Access

You have some choices when it comes to making your new container accessible from outside your home network, these come with different levels of security and convenience. This mini section is generic but covers the basics of getting this guide up and running and is entirely optional.

• Synology’s DDNS (Dynamic Domain Name System) with a TLS Certificate and Reverse Proxy
  This is useful if you have some family members or friends that need access to something like Overseerr or Jellyseer and is covered below.
  
  
• Tailscale or Wireguard VPN
  If just you are accessing these services, and you don’t want to expose them to the internet this would be the more secure choice. See my other separate guides.
  
  
• Cloudflare Tunnels
  I don’t currently use these, so I would recommend watching the Wundertech guide on how they work.

A note on Double NAT or CGNAT
Unfortunately more ISPs are moving to these methods of address allocation as the IPv4 address space is getting low on available addresses. If your ISP is doing this your choices are more limited.

You can test if this is the case by checking the WAN IP on your Router/Modem settings and then comparing it to the one shown on portchecker.co. If they are different you are likely Double NAT and will either need to see if you can pay your ISP for a standard IPv4 address or use Tailscale or Cloudflare Tunnels for access.

Using the built-in tools on DSM

The first step of this process is to forward port 443 on your Router to your NAS IP Address, how you do this will depend on your router model, so please refer to its manual.

Router (External):443 > NASIP (Internal):443

Next make sure you have registered for a Synology Account as we are going to be using their DDNS service. https://account.synology.com/en-uk/register/ If you already have this set up move to the next step.

DDNS (Dynamic Domain Name System)

A DDNS address allows you to get external access to your container via an address provided by Synology, this is useful on home internet connections where your ISP will change your IP address on a semi-regular basis.

In the DSM Control panel go to ‘External Access’ and then to the ‘DDNS’ tab

Click on ‘Add’, then fill out the following sections.

Now press OK, DSM will apply your settings. It can take a few moments to set up and the DSM interface will refresh. You will likely receive a certificate error which you will need to accept to get back into DSM.

Reverse Proxy

We are going to set up a reverse proxy subdomain for the address you just register. This means you and your users can access the container without using a port number as it will route all traffic through the secure 443 port.

Go back into the Control Panel and access the ‘Login Portal’ then in the ‘Advanced’ tab click ‘Reverse Proxy’ and then click on ‘Create’.

We are now going to enter some rules, so when you or your users access the URL specified the request will automatically be sent to the containers web UI.

Use the settings below, you will need to amend the Hostname sections in line with the hostname you registered earlier, and the IP of your NAS.

On the second tab ‘Custom Header’ click on Create then WebSocket, this will add two entries for WebSockets to function correctly, you can now press save.

You should now be able to access the web UI of the container by going to the address you just set up in the reverse proxy, it will be a secure connection, and you should have no certificate errors.

You can now log in with the username and password you created earlier, the same address is used in the Android and iPhone apps.

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