How to Install Wiki.js on Debian 12

Wiki.js on Debian 12 – A Modern Wiki Engine on a Stable Linux Platform

Wiki.js is a powerful, open-source, modern wiki software built on Node.js and backed by a PostgreSQL database. It combines a sleek, intuitive interface with extensive customization capabilities, making it ideal for internal documentation, developer wikis, knowledge bases, and collaborative workspaces.

Running Wiki.js on Debian 12 provides a robust, secure, and low-maintenance environment, especially suited for long-term deployments where stability and minimal system overhead are priorities.

Why Choose Wiki.js?

Wiki.js is designed to be lightweight, fast, and fully configurable. It offers:

A responsive Markdown-first editor with support for WYSIWYG, raw HTML, and visual editing
Built-in versioning for all content
Fine-grained access control, LDAP/OAuth integration
Modular architecture with over 30 integrations (Git, Google Drive, S3, etc.)
Real-time search, custom themes, and multi-language support
A single binary backend written in Node.js, with PostgreSQL for storage

Its frontend is written in Vue.js, making it lightweight yet highly interactive.

Why Debian 12 for Wiki.js?

Debian 12 provides a minimal, stable, and security-focused foundation for hosting production services like Wiki.js. Advantages include:

Feature	Benefit for Wiki.js Hosting
Linux Kernel 6.1 LTS	Excellent hardware support and performance tuning
Stable APT ecosystem	Predictable behavior across upgrades
Minimal base system	Reduced attack surface and memory usage
Security defaults	AppArmor, strong file permissions, no snap/flatpak
Excellent PostgreSQL support	First-class performance and compatibility
Systemd integration	Robust service management for automatic restarts

For sysadmins who prefer control and transparency, Debian is ideal compared to heavier alternatives like Ubuntu Server or CentOS Stream.

Architecture of Wiki.js on Debian 12

Component	Technology	Purpose
Backend	Node.js	Serves the core logic and API
Frontend	Vue.js (via Nuxt)	Handles client-side rendering and UI
Database	PostgreSQL	Stores pages, users, permissions, history
Reverse Proxy	NGINX or Apache	TLS termination, domain routing, compression
Optional Auth	LDAP, OAuth2, SAML	Enterprise-grade identity integration

This stack integrates cleanly with Debian’s native package and service structure.

Key Use Cases

Wiki.js on Debian 12 is ideal for:

Internal IT documentation for DevOps, SRE, and sysadmin teams
Developer wikis integrated with Git repositories
Academic or research teams collaborating on multi-author projects
Customer-facing knowledge bases with branding and access control
Project documentation with CI/CD or Git sync integrations

Thanks to its modular design and LDAP/SAML support, it’s also suitable for enterprise documentation systems.

Features Enhanced by Debian’s Stability

Wiki.js Feature	Debian 12 Advantage
PostgreSQL backend	Native Debian support for long-term PostgreSQL versions
Git integration	Stable git-core, OpenSSH, and filesystem support
TLS/HTTPS setup	Easily configured with NGINX and Let’s Encrypt
Systemd service files	Full control of process behavior (e.g., restart on crash)
Node.js runtime isolation	Use of `nvm`, `asdf`, or LTS builds ensures compatibility
LDAP/SAML integration	Supported by stable Debian packages (e.g., `libpam-ldap`)

Debian’s release cycle favors stability over bleeding-edge updates, making it suitable for production-ready wiki hosting.

Performance and Resource Efficiency

Wiki.js is a memory-efficient application, with a typical server consuming:

~300 MB RAM for the Node.js process
< 200 MB for PostgreSQL under low to moderate usage
Minimal CPU except during full-text indexing or batch operations

On Debian 12, it performs well even on modest VPSes or edge compute nodes, especially when combined with:

systemd process limits
tmpfs usage for caching
pg_cron for scheduled PostgreSQL maintenance
Reverse proxy caching via NGINX or Varnish

Security and Maintenance

Debian 12’s conservative and security-focused design pairs well with Wiki.js’s secure-by-default configuration:

Built-in token-based auth with optional MFA
Encrypted config storage using secrets and key files
Systemd watchdogs to monitor availability
SSL offloading via NGINX with HTTP/2 and HSTS
Frequent security patches via unattended-upgrades or manual APT workflows

Additionally, content can be regularly backed up via Git, PostgreSQL dumps, or external sync tools like rsync or Rclone.

Comparison: Wiki.js vs Other Wiki Platforms on Debian 12

Feature / Platform	Wiki.js	MediaWiki	BookStack	DokuWiki
Backend	Node.js + PostgreSQL	PHP + MySQL	PHP + MySQL	PHP + flat files
UI/UX	Modern (Vue.js)	Outdated without skins	Simple, clean	Basic
Authentication	OAuth2, SAML, LDAP	LDAP (extensions)	OAuth, LDAP	Basic auth
Git Integration	Yes (sync/commit)	No	No	Plugins available
Realtime Collaboration	Partial (WIP)	No	No	No
Content Format	Markdown	Wiki syntax	WYSIWYG/Markdown	Plain text

Wiki.js is a modern alternative to traditional PHP-based wikis, combining frontend flexibility with Git-native workflows.

Step 1: Create a VPS instance on Shape.Host

Go to https://shape.host and log in.

Click Create → Instance.

Choose a server location closest to your audience.

Select Debian 12 (64-bit) as the operating system.

Choose a plan with at least 2 CPUs, 2 GB RAM, and 20 GB SSD.

Click Create Instance.

Copy the IP address from the “Resources” section once the instance is ready.

Step 2: Connect to your VPS

Linux or macOS:

Open a terminal and run:

ssh root@your_server_ip

Replace your_server_ip with your actual server IP.

Windows:

Download and install PuTTY: https://www.putty.org
Open PuTTY and enter your server IP in the “Host Name” field.
Leave the port as 22 and connection type as SSH.
Click Open.
Log in as root and enter the server password.

Step 3: Update your server

apt update

Step 4: Install required packages

apt install -y curl gnupg2 ca-certificates apt-transport-https gnupg software-properties-common unzip wget nginx nodejs npm postgresql

Step 5: Create PostgreSQL user and database

su - postgres -c "psql -c \"CREATE USER wikijs WITH PASSWORD 'StrongPasswordHere';\""
su - postgres -c "psql -c \"CREATE DATABASE wikijs OWNER wikijs;\""

Step 6: Create Wiki.js system user

useradd -r -m -d /opt/wikijs -s /usr/sbin/nologin wikijs

Step 7: Download and extract Wiki.js

mkdir -p /opt/wikijs
cd /opt/wikijs
wget https://github.com/Requarks/wiki/releases/latest/download/wiki-js.tar.gz
tar -xzf wiki-js.tar.gz
chown -R wikijs:wikijs /opt/wikijs

Step 8: Configure Wiki.js

cp config.sample.yml config.yml
nano config.yml

Update the db section:

db:
  type: postgres
  host: localhost
  port: 5432
  user: wikijs
  pass: StrongPasswordHere
  db: wikijs
  ssl: false

Step 9: Create a systemd service for Wiki.js

nano /etc/systemd/system/wikijs.service

Paste:

[Unit]
Description=Wiki.js
After=network.target postgresql.service

[Service]
Type=simple
User=wikijs
WorkingDirectory=/opt/wikijs
ExecStart=/usr/bin/node server
Restart=always
Environment=NODE_ENV=production

[Install]
WantedBy=multi-user.target

Step 10: Enable and start Wiki.js

systemctl daemon-reexec
systemctl daemon-reload
systemctl enable --now wikijs
systemctl status wikijs

Step 11: Configure Nginx reverse proxy

nano /etc/nginx/sites-available/wikijs

Paste:

server {
    listen 80;
    server_name wiki.example.com;

    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Then run:

ln -s /etc/nginx/sites-available/wikijs /etc/nginx/sites-enabled/
nginx -t && systemctl restart nginx

Step 12: Secure your site with HTTPS

apt install certbot python3-certbot-nginx
certbot --nginx -d wiki.example.com --redirect --agree-tos --email your-email@example.com

Step 13: Access Wiki.js

Open your browser and visit:

http://your_server_ip:3000 (if not using Nginx)
http://wiki.example.com (with Nginx)
https://wiki.example.com (with Certbot HTTPS)

Now create the administrator user for Wiki.js and input your email address and password. Then, click INSTALL to confirm the installation.

Once the installation is finished, you should be redirected to your Wiki.js login page. Input your admin email address and password, then click LOGIN.

If your installation is successful, you should see the welcome page of Wiki.js. From here, you can create a new home page or access the Wiki.js administration dashboard.

If you click the ADMINISTRATION, you should see the Wiki.js administration page like this:

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