How to Install Modoboa on Fedora CoreOS Latest

Modoboa is an open-source mail hosting and management platform that allows you to manage your mail domains, users, and aliases. In this tutorial, we will guide you on how to install Modoboa on the latest version of Fedora CoreOS.

Prerequisites

• A running instance of Fedora CoreOS Latest
• A sudo user account

Step 1: Update the System

Before proceeding with the Modoboa installation process, we recommend you update the system.

$ sudo dnf update -y

Step 2: Install Required Dependencies

Modoboa requires some dependencies to be installed on the system. Execute the following command to install them:

$ sudo dnf install -y epel-release postgresql wget nginx certbot certbot-nginx python-pip python-devel gcc gcc-c++ systemd-devel libicu-devel openssl-devel

Step 3: Install Modoboa using pip

To install Modoboa, execute the following command:

$ sudo pip install modoboa

Step 4: Setup PostgreSQL Database

Modoboa uses PostgreSQL as its database. Execute the following command to install and start PostgreSQL service:

$ sudo dnf install -y postgresql-server postgresql-contrib
$ sudo systemctl enable postgresql.service
$ sudo systemctl start postgresql.service

After installation, create a new PostgreSQL user by executing the following command:

$ sudo -u postgres createuser modoboa -P

Now, create a new database for Modoboa by executing the following command:

$ sudo -u postgres createdb -O modoboa modoboa

Step 5: Configure Nginx

To properly serve Modoboa with Nginx, we will create Nginx configuration files. Execute the following command to open a new file in the text editor:

$ sudo nano /etc/nginx/conf.d/modoboa.conf

Now, paste the following code in the file and save it:

upstream modoboa {
  server 127.0.0.1:8000;
 }

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

  location / {
    proxy_pass http://modoboa;
    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_redirect off;
    proxy_buffering off;
    proxy_set_header Connection "Keep-Alive";
   }
 }

Note: Make sure to replace mail.example.com with your own domain.

After that, execute the following command:

$ sudo systemctl enable nginx.service
$ sudo systemctl start nginx.service

Step 6: Configure Modoboa

In this step, we will configure Modoboa for the first time. Execute the following command:

$ sudo modoboa-admin.py deploy --collectstatic

After that, create a new Modoboa admin user by executing the following command:

$ sudo modoboa-admin.py admin [email protected] --password $password

Note: Replace example.com with your own domain.

Create a new Apache user and group:

$ sudo useradd modoboa -G www-data

Change ownership of the Modoboa files and folders:

$ sudo chown -R modoboa:www-data /etc/modoboa /var/lib/modoboa

Change the permissions of the Modoboa files and folders:

$ sudo chmod -R 0775 /etc/modoboa /var/lib/modoboa
$ sudo chmod -R g+s /etc/modoboa /var/lib/modoboa

Chane the SELinux context of the Modoboa files and folders:

$ sudo semanage fcontext -a -t httpd_sys_content_t '/var/lib/modoboa(/.*)?'
$ sudo semanage fcontext -a -t httpd_sys_content_t '/etc/modoboa(/.*)?'
$ sudo restorecon -vR /var/lib/modoboa /etc/modoboa

Step 7: Configure Email Service

In this step, we will configure the email service to use SSL/TLS encryption. Execute the following command to obtain a Let's Encrypt SSL/TLS certificate:

$ sudo certbot --nginx --agree-tos --email [email protected] --redirect -d mail.example.com

Note: Replace example.com and mail.example.com with your own domain name.

Step 8: Start Modoboa

To start the Modoboa service, execute the following command:

$ sudo systemctl enable modoboa.service
$ sudo systemctl start modoboa.service

Conclusion

Congratulations! You have successfully installed Modoboa on Fedora CoreOS Latest. Now, you can access Modoboa by opening https://mail.example.com in your web browser.