Lenpaste is a web service that allows you to share notes anonymously, an alternative to pastebin. You have a syntax highlighting option and you can easily embed the code everywhere. In this step by step guide I will show you how to install LenPaste on your Synology NAS using Docker.

💡Note: This guide works perfectly with the latest LenPaste v1.3.1 release.

• 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 LenPaste. After that, add the following instructions:

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

Check Enable HSTS

Destination:
Protocol: HTTP
Hostname: localhost
Port: 8249

• 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 lenpaste. 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 lenpaste. Follow the instructions in the image below.

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

version: "3.9"
services:
  lenpaste:
    image: ghcr.io/lcomrade/lenpaste:1.3.1
    container_name: Lenpaste
    restart: on-failure:5
    environment:
      - LENPASTE_ADDRESS=:80
      - LENPASTE_DB_DRIVER=sqlite3
      - LENPASTE_DB_SOURCE=/home/docker/lenpaste/lenpaste.db
      - LENPASTE_DB_CLEANUP_PERIOD=6h
      - LENPASTE_ROBOTS_DISALLOW=true
      - LENPASTE_TITLE_MAX_LENGTH=200 
      - LENPASTE_BODY_MAX_LENGTH=20000
      - LENPASTE_MAX_PASTE_LIFETIME=never 
      - LENPASTE_ADMIN_NAME=mariushosting
      - LENPASTE_ADMIN_MAIL=yourown@email
    volumes:
      - /volume1/docker/lenpaste:/data:rw
    ports:
      - 8249:80 

Note: Before you paste the code above in the Web editor area, change the value for LENPASTE_ADMIN_NAME and add your own admin name. mariushosting is an example for an admin name. You have to insert your own admin name.
Note: Before you paste the code above in the Web editor area, change the value for LENPASTE_ADMIN_MAIL and add your own email.

• 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: “Stack successfully deployed“.

• STEP 15

🟢Please Support My work by Making a Donation. Almost 99,9% of the people that install something using my guides forget to support my work, or just ignore STEP 1. I’ve been very honest about this aspect of my work since the beginning: I don’t run any ADS, I don’t require subscriptions, paid or otherwise, I don’t collect IPs, emails, and I don’t have any referral links from Amazon or other merchants. I also don’t have any POP-UPs or COOKIES. I have repeatedly been told over the years how much I have contributed to the community. It’s something I love doing and have been honest about my passion since the beginning. But I also Need The Community to Support me Back to be able to continue doing this work.

• STEP 16

Now open your browser and type in your HTTPS/SSL certificate like this https://lenpaste.yourname.synology.me In my case it’s https://lenpaste.mariushosting.synology.me Click Settings. Follow the instructions in the image below.

• STEP 17

Add your own credentials. Click Save Settings then return to the first page.

• STEP 18

Create your first paste! Give it a name, add your code, choose the Syntax, add the expiration date, then hit the Create New Paste button. Follow the instructions in the image below.

• STEP 19

Your new paste that you have created at STEP 18 has its own address which you can share with your friends, or you can embed the code in your blog.

• STEP 20

Copy the embedded code. Follow the instructions in the image below.

• STEP 21

Paste the code in your own blog. Follow the instructions in the image below

Enjoy LenPaste!

Note: Find out the full docker.compose.yml for the LenPaste container.

Note: Find out how to update the LenPaste container with the latest image.
Note: How to Back Up Docker Containers on your Synology NAS.
Note: Can I run Docker on my Synology NAS? See the supported models.
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 Saturday / January 11th, 2025 at 11:48 AM