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AlmaLinux 9.1 ; WEB Server(Apache2) Install & Virtual Hosts

1.Apache2 Install , Virtual Host Configuration

1.1 Apache2 install

①httpd install

1.2 Apache Configuration

①Edit httpd.conf file

②If Firewalld is enabled, HTTP service permission is required; HTTP uses [80/TCP]

③Apache Auto-Start Configuration

④operation check
If you access http://[server IP address] and see the AlamLinux Test Page as shown below, it is OK.
⑤Hide the Welcome page, create a new index.html file as a Test Page, and check apache operation

Rename the welcome page

If you access http://<server IP address> and the Test Page is displayed as shown below, it is OK.

1.3 Virtual Host Settings

Assign and configure the domain name [] to the document root [/var/www/html/] directory for virtual host operation

Creating a Document Directory
Restart Apache

2. Use of CGI Scripts

①CGI availability check

②Create test scripts and check operation

3. PHP installation and configuration

1.PHP8 Install


②Version Check

If you are installing Php8.1, you will need the Remi repository, so install it if you have not already done so.
Stop PHP once
PHP 8.1  install
php-fpm configuration
③Apache Restart

After PHP installation, restarting Apache will invoke PHP-FPM (FPM : FastCGI Process Manager) by default, and php-fpm service will be started in conjunction with httpd startup.
④Confirmation of PHP operation
Create the following files
If you access http://<FQDN>/test.php in your browser and see the following screen, it is OK

4. Digest authentication with Apache2

Since Basic Authentication, a well-known authentication authorization method for http, sends authentication information in plain text, there is a risk of ID and password leakage if the packet is intercepted.
On the other hand, Digest Authentication encrypts and transmits authentication information, so there is almost no risk of information leakage.

4.1 Create password file for Digest authentication

Specify an authenticated area called realm. This realm allows the same directory to be accessed as authenticated.
For this example, the realm is "DigestAuth" and a user and password file named "secretuser" ".digestauth" is created.

As above, secretuser and encrypted password are created

4.2Edit Apache configuration file

Specify the directory to which Digest authentication will be applied. (In this case, specify the "secret" directory.)

Add the following at the end

Enable Digest authentication and reboot

When accessing http://<domain name>/ with a browser, a screen appears asking for "user name" and "password".