Slash is a bookmarking and short link service that allows you to save and share links easily. It lets you store and categorize links, generate short URLs for easy sharing, search and filter your saved links, and access them from any device. In this step by step guide I will show you how to install Slash on your Synology NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest Slash v0.5.3 release.

💡Note: Check out my guide on how to Install Slash With PostgreSQL as a Database.

• STEP 1

Please Support My work by Making a Donation.

• STEP 2

Install Portainer using my step by step guide. If you already have Portainer installed on your Synology NAS, skip this STEP. Attention: Make sure you have installed the latest Portainer version.

• STEP 3

Make sure you have a synology.me Wildcard Certificate. Follow my guide to get a Wildcard Certificate. If you already have a synology.me Wildcard certificate, skip this STEP.

• STEP 4

Go to Control Panel / Login Portal / Advanced Tab / click Reverse Proxy. Follow the instructions in the image below.

• STEP 5

Now click the “Create” button. Follow the instructions in the image below.

• STEP 6

After you click the Create button, the window below will open. Follow the instructions in the image below.

On the General area, set the Reverse Proxy Name description: type in Slash. After that, add the following instructions:

Source:
Protocol: HTTPS
Hostname: slash.yourname.synology.me
Port: 443

Check Enable HSTS

Destination:
Protocol: HTTP
Hostname: localhost
Port: 5231

• STEP 7

On the Reverse Proxy Rules click the Custom Header tab. Click Create and then, from the drop-down menu, click WebSocket. After you click on WebSocket, two Header Names and two Values will be automatically added. Click Save. Follow the instructions in the image below.

• STEP 8

Go to Control Panel / Network / Connectivity tab/ Check Enable HTTP/2 then click Apply. Follow the instructions in the image below.

• STEP 9

Go to Control Panel / Security / Advanced tab/ Check Enable HTTP Compression then click Apply. Follow the instructions in the image below.

• STEP 10

Go to File Station and open the docker folder. Inside the docker folder, create one new folder and name it slash. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 11

Log into Portainer using your username and password. On the left sidebar in Portainer, click on Stacks then + Add stack. Follow the instructions in the image below.

• STEP 12

In the Name field type in slash. Follow the instructions in the image below.

Note: Copy Paste the code below in the Portainer Stacks Web editor.

version: "3.9"
services:
  slash:
    container_name: Slash
    image: yourselfhosted/slash:latest
    mem_limit: 2g
    cpu_shares: 768
    security_opt:
      - no-new-privileges:true
    restart: on-failure:5
    ports:
      - 5231:5231
    volumes:
      - /volume1/docker/slash:/var/opt/slash:rw

• STEP 13

Scroll down on the page until you see a button named Deploy the stack. Click on it. Follow the instructions in the image below. The installation process can take up to a few minutes. It will depend on your Internet speed connection.

• STEP 14

If everything goes right, you will see the following message at the top right of your screen: “Success Stack successfully deployed“.

• STEP 15

Go back to STEP 1 or you will deal with karma 🙂.

• STEP 16

Now open your browser and type in your HTTPS/SSL certificate like this https://slash.yourname.synology.me In my case it’s https://slash.mariushosting.synology.me If everything goes right, you will see the Slash signup page. Click Sign up. Follow the instructions in the image below.

• STEP 17

Type in your own Email Address, Nickname and Password. Click Sign up. Follow the instructions in the image below.

• STEP 18

On the left sidebar click on your profile name, then Settings. Uncheck Enable user signup then click Save. Follow the instructions in the image below.

• STEP 19

On the left sidebar click on your profile name, then Profile. Change the current white theme to Dark. Follow the instructions in the image below.

• STEP 20

Click +Create to start adding your first link. Follow the instructions in the image below.

• STEP 21

Add your custom slug name, then your long Destination URL Link. Select the tags and the visibility. Click Save. Follow the instructions in the image below.

• STEP 22

Your long url is now shorter and will look like https://slash.yourname.synology.me/s/thenameyouhavechosen.

Enjoy Slash!

🆘TROUBLESHOOTING

If you encounter issues by using this container, make sure to check out the Common Docker issues article.

Note: Can I run Docker on my Synology NAS? See the supported models.
Note: How to Back Up Docker Containers on your Synology NAS.
Note: Find out how to update the Slash container with the latest image.
Note: How to Free Disk Space on Your NAS if You Run Docker.
Note: How to Schedule Start & Stop For Docker Containers.
Note: How to Activate Email Notifications.
Note: How to Add Access Control Profile on Your NAS.
Note: How to Change Docker Containers Restart Policy.
Note: How to Use Docker Containers With VPN.
Note: Convert Docker Run Into Docker Compose.
Note: How to Clean Docker.
Note: How to Clean Docker Automatically.
Note: Best Practices When Using Docker and DDNS.
Note: Some Docker Containers Need WebSocket.
Note: Find out the Best NAS Models For Docker.
Note: Activate Gmail SMTP For Docker Containers.

This post was updated on Tuesday / November 12th, 2024 at 1:13 PM