![]() -email: Enter your email address, which is used for important notifications and account recovery.A valid OCSP response is stapled to the certificate that the server offers during TLS. -no-eff-email: Don’t receive emails from EFF foundation.-agree-tos: Agree to terms of service.-a apache: Use the Apache plugin for authentication.sudo certbot certonly -a apache -agree-tos -no-eff-email -staple-ocsp -email -d Once the virtual host is created and enabled, run the following command to obtain Let’s Encrypt TLS certificate. Reload Apache for the changes to take effect. Then disable the default virtual host, because it might interfere with other virtual hosts. Then paste the following text into the file. Create the virtual host file: sudo nano /etc/apache2/sites-available/ You need to have an Apache virtual host for before obtaining Let’s Encrypt TLS certificate. #Canary mail pop 3 install(The following command will install Nginx web server if it’s not already installed on your system.) sudo apt install python3-certbot-nginx Obtaining TLS Certificate with Apache Web Server If you use Nginx web server, then install the Nginx plugin. (The following command will install Apache web server if it’s not already installed on your system.) sudo apt install python3-certbot-apache If you use Apache web server, you need to install the Apache plugin. #Canary mail pop 3 how toAnd in a later tutorial, I will show you how to set up webmail, which requires running a web server. If you don’t have a web server running yet, I recommend you install one (Apache or Nginx), because it’s easier to obtain and install TLS certificate with a web server than using other methods. #Canary mail pop 3 softwareIssue the following commands to install Let’s Encrypt client (certbot) on Ubuntu server from the default software repository. We can easily obtain a free TLS certificate from Let’s Encrypt. When we configure our desktop email clients, It’s always a good idea to enable TLS encryption to prevent hackers from snooping on our emails. sudo ufw allow 110,995/tcp Securing Email Server Traffic with TLS Certificate If you use POP3 to fetch emails (I personally don’t), then also open port 110 and 995. If you have enabled the UFW firewall, then you need to run the following command to open email related ports in firewall. Ubuntu doesn’t enable firewall by default. And to encrypt our communications, we need a TLS certificate. To receive emails using a desktop email client, we can install an open-source IMAP server named Dovecot on the Ubuntu server. To be able to send emails using a desktop email client, we need to enable the submission service in Postfix. In this tutorial, we are going to configure our email server so that we can receive and send emails using a desktop email client like Mozilla Thunderbird or Microsoft Outlook. In part 1, we showed you how to set up a basic Postfix SMTP server. This is part 2 of building your own secure email server on Ubuntu from scratch tutorial series. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |