# Application Server

These instructions are for bootstrapping dolt as an application database server. They assume you are starting from scratch on a Linux machine without dolt installed or running.

Package manager support (`.deb` and `.rpm` distributions) is coming soon, but for now this set of manual setup work is necessary.

We have the instructions below packaged in a script [here](https://github.com/dolthub/docs/blob/gitbook-publish/packages/dolt/content/.gitbook/assets/deploy-server.sh).

## Installation

Install dolt. Run the following command:

```bash
sudo bash -c 'curl -L https://github.com/dolthub/dolt/releases/latest/download/install.sh | sudo bash'
```

This script puts the `dolt` binary in `/usr/local/bin`, which is probably on your `$PATH`. If it isn't add it there or use use the absolute path of the `dolt` binary for next steps.

## Configuration

Create a system account for the dolt user to run the server.

```bash
sudo useradd -r -m -d /var/lib/doltdb dolt
```

Before running the server, you need to give this user a name and email, which it will use to create its commits. Choose a dolt system account for your product or company.

```bash
$ cd /var/lib/doltdb
$ sudo -u dolt dolt config --global --add user.email doltServer@company.com
$ sudo -u dolt dolt config --global --add user.name "Dolt Server Account"
```

You can override this user for future commits with the `--author` flag, but this will be default author of every commit in the server.

## Database creation

Before running the dolt server for the first time, you need to create a database. Choose a directory within `/var/lib/doltdb/databases` where you want your dolt data to live. Name the directory the same as the name of your database.

```bash
cd /var/lib/doltdb
sudo -u dolt mkdir -p databases/my_db
cd databases/my_db
sudo -u dolt dolt init
```

You should see output indicating that the database has been initialized:

```bash
Successfully initialized dolt data repository.
```

## Start the server

Assuming you want your dolt server to always be running when the machine is alive, you should configure it to run through the Linux service management tool, `systemctl` (part of `systemd`). Some distributions of Linux do not support this tool; consult their documentation for configuration instructions.

Write the server's config file in your home directory, then move it to where `systemctl` needs it to live.

```bash
cd ~
cat > doltdb.service <<EOF
[Unit]
Description=dolt SQL server
After=network.target

[Install]
WantedBy=multi-user.target

[Service]
User=dolt
Group=dolt
ExecStart=/usr/local/bin/dolt sql-server
WorkingDirectory=/var/lib/doltdb/databases/my_db
KillSignal=SIGTERM
SendSIGKILL=no
EOF

sudo chown root:root doltdb.service
sudo chmod 644 doltdb.service
sudo mv doltdb.service /etc/systemd/system
```

Finally, start the server as a system daemon.

```bash
sudo systemctl daemon-reload
sudo systemctl enable doltdb.service
sudo systemctl start doltdb
```

The dolt sql server will now be running as a daemon. Test connecting to it with any SQL shell. Here we are using the mysql shell to connect.

```bash
mysql -h 127.0.0.1 -u root -p''
```

Note that by default, Dolt runs on the same port as MySQL (3306). If you have MySQL installed on the same host, choose a different port for the server with the `-P` argument.

## Users and passwords

By default, when starting `dolt sql-server, Dolt will automatically initialize the default` root\@localhost`superuser, which is accessible only from the localhost and without a password. To change this account or add any additional accounts, you can use the standard`CREATE USER`,` ALTER USER`, and` GRANT\` SQL statements.

## Other Linux distributions

These instructions should work for Debian, Ubuntu, Amazon Linux, and many other common distributions. If you find they don't work for yours and you would like your distribution documented, come chat with us on [Discord](https://discord.gg/s8uVgc3) or [submit a PR](https://github.com/dolthub/docs) to update the docs.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.dolthub.com/introduction/installation/application-server.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.