# Self-signed certificate for apache

###### tags: `linux` `certificate` `apache`

### create a self-signed certificate

root@ubuntu:/# openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/apache-self-signed.key -out /etc/ssl/certs/apache-self-signed.crt
Generating a 2048 bit RSA private key
..........+++
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writing new private key to '/etc/ssl/private/apache-self-signed.key'
-----
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]:
State or Province Name (full name) [Some-State]:NSW
Locality Name (eg, city) []:Sydney
Organization Name (eg, company) [Internet Widgits Pty Ltd]:My Company
Organizational Unit Name (eg, section) []:Engineer
Common Name (e.g. server FQDN or YOUR name) []:my-web-server
Email Address []:

### configure apache to use the certificate

Edit "/etc/apache2/sites-available/default-ssl.conf". Modify "SSLCertificateFile" and "SSLCertificateKeyFile" which point to the path of the certificate and key files.

SSLCertificateFile /etc/ssl/certs/apache-self-signed.pem
SSLCertificateKeyFile /etc/ssl/private/apache-self-signed.key

Edit "/etc/apache2/sites-available/000-default.conf", add "Redirect" for redirect http to https.

Redirect "/" "https://my-web-server"

Edit "/etc/apache2/apache2.conf",  add "ServerName" in the end of file.
ServerName my-web-server

### enable the configuration on the apache and restt the apache

a2enmod ssl
a2ensite default-ssl
apache2ctl configtest
systemctl restart apache2

### test

Ref:
https://www.digitalocean.com/community/tutorials/how-to-create-a-self-signed-ssl-certificate-for-apache-in-ubuntu-18-04