Apache Tricks

Set Server Agent Name

sudo apt-get install libapache2-mod-security2

Once the module is installed, you can modify the Apache config under the file /etc/apache2/apache2.conf. Add this line around the end of the file.

<IfModule mod_security2.c>
SecServerSignature "ecoware"

How to set the Expires Headers in Apache

enable expires and headers modules for Apache

sudo a2enmod expires;
sudo a2enmod headers;

Edit the /etc/apache2/apache2.conf file

sudo nano /etc/apache2/apache2.conf

Add the following

<IfModule mod_expires.c>
ExpiresActive on
AddType image/x-icon .ico
ExpiresDefault "access plus 2 hours"
ExpiresByType text/html "access plus 7 days"
ExpiresByType image/gif "access plus 7 days"
ExpiresByType image/jpg "access plus 7 days"
ExpiresByType image/jpeg "access plus 7 days"
ExpiresByType image/png "access plus 7 days"
ExpiresByType text/js "access plus 2 hours"
ExpiresByType text/javascript "access plus 2 hours"
ExpiresByType text/plain "access plus 2 hours"
ExpiresByType image/x-icon "access plus 30 days"
ExpiresByType image/ico "access plus 30 days"

Restart apache

sudo service apache2 restart

Check that it worked by loading an image.  You should see an expired line in the output such as

Expires: Wed, 22 Aug 2020 22:03:35 GMT

See: https://hooshmand.net/fix-set-expires-headers-apache/