sudo nano /etc/apache2/conf-enabled/security.conf- change
ServerTokens OStoServerTokens Prod - change
ServerSignature OntoServerSignature Off
Restart Apache :
sudo service apache2 restart or sudo /etc/init.d/apache2 restartsudo nano /etc/apache2/conf-enabled/security.confServerTokens OS to ServerTokens ProdServerSignature On to ServerSignature OffRestart Apache :
sudo service apache2 restart or sudo /etc/init.d/apache2 restart