OK, you don't assign SSL to Ubuntu, you do it to the port. Remember SSL works before the connection.

Free SSL certificates with Let’s Encrypt certbot – tested in Ubuntu 14.04 with Apache 2. It is nice to have a site with valid SSL certificates, your visitors will be happy when they see that green padlock. Unfortunately it generally costs time and money to setup SSL certificates. Free SSL certificates with Let’s Encrypt certbot – tested in Ubuntu 14.04 with Apache 2. It is nice to have a site with valid SSL certificates, your visitors will be happy when they see that green padlock. Unfortunately it generally costs time and money to setup SSL certificates. Install Certbot Certbot is a small tool, which helps you to create keys and signs (Signature) of SSL certificate, and automatically register with Let's Encrypt organization and then download the Let’s Encrypt certificate to the Server for you.

So, you don't have to assign SSL to PHP because it is a web language. You assign it to the web server (apache in this case)

For Apache you create a virtual server, with port 443 and setup the SSL directories.

I like to use Webmin for managing my Ubuntu servers. You will basically setup a virtual server with almost same settings as the non SSL, and in the SSL options you add the path to the certificate and the private file. You also want rewrite and ssl modules active in Apache

An example of the site configuration for Apache with SSL if you preffer to edit the config file

Comodo has instructions how to setup too

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https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/637/66/ (I used comodo because it is cheaper, but whatever SSL provider you use will have instructions although they should all be similar)

To add SSL to SSH it will be a similar process. You do it from the SSH configuration, however I am not sure if you can use the same certificate since Apache would have created the certificate request for the web site, and you will have to generate a new request from SSH.

Now, lets not confuse SSL with Host SSH keys. The host keys are a user certification and authentication. It is generated per user (although you could share keys but then how do you identify the user?)

SSL certificates are used to encrypt the traffic between the server and client within web servers and provides extra security for users accessing web application. Let’s Encrypt provides an easy way to obtain and install trusted certificates without any cost. This guide will show you how to install FREE SSL/TLS Certificate on Apache with Let’s Encrypt on Ubuntu 18.04/20.04 server running Apache as a web server.

How to install free ssl certificate in ubuntu operating system

2Installing Let’s Encrypt Client

Prerequisites

An Ubuntu 18.04/20.04 server with a non-root sudo-enabled user
Apache web server installed with one or more domain names configured properly through Virtual Hosts specifying ServerName.

Installing Let’s Encrypt Client

Let’s Encrypt certificates are fetched through client software running on your server. Certbot is the official client and developers usually maintain it their own Ubuntu repository with up-to-date versions.

As you already know Ubuntu latest release 20.04 uses Python3 so there is difference installing Let’s Encrypt certificate in our Ubuntu 20.04 server.

Install Let’s Encrypt Client on Ubuntu 18.04

First, add the repository,

Next, you need to press ENTER to accept. Afterwards, update the package list to get new repository package information,

Now install Certbot from the new repository with apt-get,

Adobe cs3 installer free download. Certbot Let’s Encrypt client is properly installed in your ubuntu 18.04 server.

Install Let’s Encrypt Client on Ubuntu 20.04

In our latest ubuntu release, there is no need to add certbot repository. Just run the following command to install certbot client on your ubuntu 20.04 server. Make sure, you put Python3 in command,

Certbot Let’s Encrypt client is now ready to use on ubuntu 20.04 platform.

Setting up Let’s Encrypt SSL Certificate

Obtaining the SSL certificate for Apache Web server with Certbot is very simple. The certbot client will automatically obtain and install a new SSL certificate that is valid for the domains for 3 months.

To execute the interactive installation and obtain a certificate that covers only a single domain, run the certbot command as follows,

If you want to get a single certificate that is valid for one or more than one domains or subdomains, you can pass them as additional parameters in the command. For this instance, Domain-name.com is base domain.

Once dependencies installed, you will be prompted a step-by-step guide to customize your certificate options. You have to provide an email address to recover lost key and notices, warning. You have to choose between enabling both http and https access or forcing all requests to redirect to https. It is usually safest to redirect https, until/unless you have a specific need for unencrypted http traffic.

Verify the Let’s Encrypt Certificate Installation

You can verify the status of your SSL certificate with the following link (Please replace Domain-name.com with your base domain,

You will be able to access your website using a https prefix the website URL.

SSL Certificate Auto-Renewal

Let’s Encrypt certificates only eligible for 90 days. However, the certbot client takes care of this by running certbot renew twice a day via a systemd timer. On non-systemd distributions this functionality can be added by a cron script placed in /etc/cron.d. This task will run twice in a day and renew any certificate which is expiring within thirty days.

How To Install Free Ssl Certificate In Ubuntu Windows 10

You can test the renewal process, you can do a dry run with certbot,

How To Install Free Ssl Certificate In Ubuntu Download

If you see no errors, you’re all set. If the renewal process ever fails, Let’s Encrypt will send an email to you specified that your certificate is about to expire.

We recommend you put these entries in your crontab file that runs twice in a day and this takes care of auto renewal of your Let’s encrypt certificate.

Conclusion

How Can I View A Site's SSL Certificate? | Chron.com

Adobe air offline installer free download. In this guide, we saw how to install FREE SSL/TLS certificate on apache with Let’s Encrypt on Ubuntu 18.04/20.04.

Read Also :How to Generate a SELF-SIGNED SSL Certificate with Openssl in Linux

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