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# Install and Deploy - Linux
This article will walk you through the procedure to install and deploy Bitwarden to your own Linux server. Bitwarden can also be installed and deployed on [Windows](https://wiki.zenndev.xyz/#help/install-on-premise-windows/) machines.
## System specifications
|   | Minimum | Recommended |
| -------------- | ---------------------------- | ---------------------------- |
| Processor | x64, 1.4GHz | x64, 2GHz dual core |
| Memory | 2GB RAM | 4GB RAM |
| Storage | 12GB | 25GB |
| Docker Version | Engine 19+ and Compose 1.24+ | Engine 19+ and Compose 1.24+ |
> #### **TIP**
>
> If you are looking for a quality provider with affordable prices, we recommend DigitalOcean. [Get started today](https://marketplace.digitalocean.com/apps/bitwarden) or read our [blog post about Bitwarden on DigitalOcean](https://wiki.zenndev.xyz/#blog/digitalocean-marketplace/).
## TL;DR
The following is a summary of the installation procedure in this article. Links in this section will jump to detailed **Installation procedure** sections:
[**Configure your domain**](https://wiki.zenndev.xyz/#software-install/bitwarden/#configure-your-domain). Set DNS records for a domain name pointing to your machine, and open ports 80 and 443 on the machine.
[**Install Docker and Docker Compose**](https://wiki.zenndev.xyz/#software-install/bitwarden/#install-docker-and-docker-compose) on your machine.
[**Create a Bitwarden user & directory**](https://wiki.zenndev.xyz/#software-install/bitwarden/#create-bitwarden-local-user--directory) from which to complete installation.
Retrieve an installation id and key from [**https://bitwarden.com/host**](https://wiki.zenndev.xyz/#host/) for use in installation.
> For more information, see [What are my installation id and installation key used for?](https://wiki.zenndev.xyz/#help/hosting-faqs/#general)
[**Install Bitwarden**](https://wiki.zenndev.xyz/#software-install/bitwarden/#install-bitwarden) on your machine.
[**Configure your environment**](https://wiki.zenndev.xyz/#software-install/bitwarden/#post-install-configuration) by adjusting settings in `./bwdata/env/global.override.env`.
> #### **TIP**
>
> At a minimum, configure the `globalSettings__mail__smtp...` variables to setup an email server for inviting and verifying users.
[**Start your instance**](https://wiki.zenndev.xyz/#software-install/bitwarden/#start-bitwarden).
Test your installation by opening your configured domain in a web browser.
Once deployed, we recommend regularly [backing up your server](https://wiki.zenndev.xyz/#help/backup-on-premise/) and [checking for system updates](https://wiki.zenndev.xyz/#help/updating-on-premise/).
# Installation procedure
## Configure your domain
By default, Bitwarden will be served through ports 80 (`http`) and 443 (`https`) on the host machine. Open these ports so that Bitwarden can be accessed from within and/or outside of the network. You may opt to choose different ports during installation.
We recommend configuring a domain name with DNS records that point to your host machine (for example, `bitwarden.example.com`), especially if you are serving Bitwarden over the internet.
## Install Docker and Docker Compose
Bitwarden will be deployed and run on your machine using an array of [Docker containers](https://docs.docker.com/get-started/). Bitwarden can be run with any Docker edition or plan. Evaluate which edition is best for your installation.
Deployment of containers is orchestrated using [Docker Compose](https://docs.docker.com/compose/). Some Docker installations, including Docker for macOS, come with Docker Compose already installed.
**Install Docker and Docker Compose on your machine before proceeding with installation.** Refer to the following Docker documentation for help:
[Install Docker Engine](https://docs.docker.com/engine/installation/)
[Install Docker Compose](https://docs.docker.com/compose/install/)
## Create Bitwarden local user & directory
We recommend configuring your Linux server with a dedicated `bitwarden` service account, from which to install and run Bitwarden. Doing so will isolate your Bitwarden instance from other applications running on your server.
**These steps are Bitwarden-recommended best practices, but are not required.** For more information, see Docker's [Post-installation steps for Linux](https://docs.docker.com/engine/install/linux-postinstall/) documentation.
Create a bitwarden user:
```
sudo adduser bitwarden
```
Set password for bitwarden user (strong password):
```
sudo passwd bitwarden
```
Create a docker group (if it doesn't already exist):
```
sudo groupadd docker
```
Add the bitwarden user to the docker group:
```
sudo usermod -aG docker bitwarden
```
Create a bitwarden directory:
```
sudo mkdir /opt/bitwarden
```
Set permissions for the `/opt/bitwarden` directory:
```
sudo chmod -R 700 /opt/bitwarden
```
Set the bitwarden user as owner of the `/opt/bitwarden` directory:
```
sudo chown -R bitwarden:bitwarden /opt/bitwarden
```
## Install Bitwarden
Bitwarden provides a shell script for easy installation on Linux and macOS (Bash), or Windows (PowerShell). Complete the following steps to install Bitwarden using the shell script:
> #### **TIP**
>
> If you have [created a Bitwarden user & directory](https://wiki.zenndev.xyz/#software-install/bitwarden/#create-bitwarden-local-user--directory), complete the following as the `bitwarden` user from the `/opt/bitwarden` directory.
Download the Bitwarden installation script (`bitwarden.sh`) to your machine:
```
curl -Lso bitwarden.sh https://go.btwrdn.co/bw-sh && chmod 700 bitwarden.sh
```
Run the installer script. A `./bwdata` directory will be created relative to the location of `bitwarden.sh`.
```
./bitwarden.sh install
```
Complete the prompts in the installer:
**Enter the domain name for your Bitwarden instance:**
Typically, this value should be the configured DNS record.
**Do you want to use Let's Encrypt to generate a free SSL certificate? (y/n):**
Specify `y` to generate a trusted SSL certificate using Let's Encrypt. You will be prompted to enter an email address for expiration reminders from Let's Encrypt. For more information, see [Certificate Options](https://wiki.zenndev.xyz/#help/certificates/).
Alternatively, specify `n` and use the **Do you have a SSL certificate to use?** option.
**Enter your installation id:**
Retrieve an installation id using a valid email at [https://bitwarden.com/host](https://wiki.zenndev.xyz/#host/). For more information, see [what are my installation id and installation key used for?](https://wiki.zenndev.xyz/#help/hosting-faqs/#general)
**Enter your installation key:**
Retrieve an installation key using a valid email at [https://bitwarden.com/host](https://wiki.zenndev.xyz/#host/). For more information, see [What are my installation id and installation key used for?](https://wiki.zenndev.xyz/#help/hosting-faqs/#general)
**Do you have a SSL certificate to use? (y/n):**
If you already have your own SSL certificate, specify `y` and place the necessary files in the `./bwdata/ssl/your.domain` directory. You will be asked whether it is a trusted SSL certificate (y/n). For more information, see [Certificate Options](https://wiki.zenndev.xyz/#help/certificates/).
Alternatively, specify `n` and use the **self-signed SSL certificate?** option, which is only recommended for testing purposes.
**Do you want to generate a self-signed SSL certificate? (y/n):**
Specify `y` to have Bitwarden generate a self-signed certificate for you. This option is only recommended for testing. For more information, see [Certificate Options](https://wiki.zenndev.xyz/#help/certificates/).
If you specify `n`, your instance will not use an SSL certificate and you will be required to front your installation with a HTTPS proxy, or else Bitwarden applications will not function properly.
# Post-install configuration
Configuring your environment can involve making changes to two files; an [environment variables file](https://wiki.zenndev.xyz/#software-install/bitwarden/#environment-variables) and an [installation file](https://wiki.zenndev.xyz/#software-install/bitwarden/#installation-configuration):
## Environment variables (_required_)
Some features of Bitwarden are not configured by the `bitwarden.sh` script. Configure these settings by editing the environment file, located at `./bwdata/env/global.override.env`. **At a minimum, you should replace the values for:**
```
...
globalSettings__mail__smtp__host=<placeholder>
globalSettings__mail__smtp__port=<placeholder>
globalSettings__mail__smtp__ssl=<placeholder>
globalSettings__mail__smtp__username=<placeholder>
globalSettings__mail__smtp__password=<placeholder>
...
adminSettings__admins=
...
```
Replace `globalSettings__mail__smtp...=` placeholders to connect to the SMTP mail server that will be used to send verification emails to new users and invitations to organizations. Adding an email address to `adminSettings__admins=` will provision access to the admin portal.
After editing `global.override.env`, run the following command to apply your changes:
```
./bitwarden.sh restart
```
## Installation file
The Bitwarden installation script uses settings in `./bwdata/config.yml` to generate the necessary assets for installation. Some installation scenarios (such as installations behind a proxy with alternate ports) may require adjustments to `config.yml` that were not provided during standard installation.
Edit `config.yml` as necessary and apply your changes by running:
```
./bitwarden.sh rebuild
```
## Start Bitwarden
Once you have completed all previous steps, start your Bitwarden instance:
```
./bitwarden.sh start
```
## note
The first time you start Bitwarden it may take some time as it downloads all of the images from Docker Hub.
Verify that all containers are running correctly:
```
docker ps
```
Congratulations! Bitwarden is now up and running at `https://your.domain.com`. Visit the web vault in your web browser to confirm that it's working.
You may now register a new account and log in. You will need to have configured `smtp` environment variables (see [Environment Variables](https://wiki.zenndev.xyz/#help/environment-variables/)) in order to verify the email for your new account.
> #### **TIP**
>
> Once deployed, we recommend regularly [backing up your server](https://wiki.zenndev.xyz/#help/backup-on-premise/) and [checking for system updates](https://wiki.zenndev.xyz/#help/updating-on-premise/).
## Script commands reference
The Bitwarden installation script (`bitwarden.sh` or `bitwarden.ps1`) has the following commands available:
## note
PowerShell users will run the commands with a prefixed `-` (switch). For example `.\bitwarden.ps1 -start`.
| Command | Description |
| ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| install | Start the installer. |
| start | Start all containers. |
| restart | Restart all containers (same as start). |
| stop | Stop all containers. |
| update | Update all containers and the database. |
| updatedb | Update/initialize the database. |
| updaterun | Update the `run.sh` file. |
| updateself | Update this main script. |
| updateconf | Update all containers without restarting the running instance. |
| uninstall | Before this command executes, you will be prompted to save database files. `y` will create a tarfile of your database including the most recent backup. Stops containers, deletes the `bwdata` directory and all its contents, and removes ephemeral volumes. After executing, you will be asked whether you also want to purge all Bitwarden images. |
| renewcert | Renew certificates. |
| rebuild | Rebuild generated installation assets from `config.yml`. |
| help | List all commands. |