About Self-Signed Certificates
A SSL certificate is a way to encrypt a site's information and create a more secure connection. Additionally, the certificate can show the virtual private server's identification information to site visitors. Certificate Authorities can issue SSL certificates that verify the server's details while a self-signed certificate has no 3rd party corroboration.
Set Up
The steps in this tutorial require the user to have root privileges on the VPS. You can see how to set that up in the Initial Server Setup in steps 3 and 4.
Additionally, you need to have apache already installed and running on your virtual server. If this is not the case, you can download it with this command:
sudo pacman -Syu sudo pacman -S apache
Step One—Switch Into the Apache Config Directory
The first step is move into the main apache configuration directory. All of the subsequent steps will take place within the directory:
cd /etc/httpd/conf
Step Two—Create a Self Signed SSL Certificate
Start off by creating the 1024 rsa private key. The `-des3` option designates the need for a passphrase. Although having the passphrase in place does provide heightened security, the issue starts when one tries to reload apache. In the event that apache crashes or needs to reboot, you will always have to re-enter your passphrase to get your entire web server back online.
sudo openssl genrsa -des3 -out server.key 1024
Now it’s time to create a certificate-signing request. If you set up a passphrase in the previous step, you will be prompted to enter it in this step as well:
sudo openssl req -new -key server.key -out server.csr
This command will prompt terminal to display a lists of fields that need to be filled in.
The most important line is "Common Name". Enter your official domain name here or, if you don't have one yet, your site's IP address.
You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]:US State or Province Name (full name) [Some-State]:New York Locality Name (eg, city) []:NYC Organization Name (eg, company) [Internet Widgits Pty Ltd]:Awesome Inc Organizational Unit Name (eg, section) []:Dept of Merriment Common Name (e.g. server FQDN or YOUR name) []:example.com Email Address []:[email protected]
Finally, remove the passphrase:
sudo cp server.key server.key.org sudo openssl rsa -in server.key.org -out server.key
Finish by specifying how long the certificate should remain valid by changing the 365 to the number of days you prefer. As it stands this certificate will expire after one year.
sudo openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt
Step Three—Finish Up
Your certificate has been created and signed. You only have to be sure that apache includes it in its configuration. Go ahead and open up the main apache config file:
sudo nano /etc/httpd/conf/httpd.conf
Once there, uncomment the following line:
Include conf/extra/httpd-ssl.conf
Restart apache to put your changes into effect:
sudo systemctl restart httpd
In your browser, type https://youraddress, and you will be able to see the new self-signed certificate.