How to create a proper debian LAMP server

1) debian_change_hostname

# Hostname
hostname
hostname -f
nano /etc/hostname
nano /etc/hosts
shutdown -r now
hostname
hostname -f

2) debian_lamp_server

## WARNING ! PHP 5 is now obsolete, please use PHP 7 or greater

# Major Packages
apt update && apt upgrade
apt install mysql-server mysql-client
apt install apache2
apt install php5 php-pear php5-mysql
service apache2 restart

# Major addons
apt install phpmyadmin apache2-mpm-prefork openssl

# PHP addons
apt install php5-mysql php5-curl php5-gd php5-intl php5-cli php5-cgi php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl php5-imagick imagemagick libruby php5-memcached memcached php-auth

# Apache2 addons
apt install apache2-doc apache2-utils libexpat1 ssl-cert php5-mcrypt mcrypt libapache2-mod-python libapache2-mod-passenger

3) apache2_logs & fichiers utiles

# Logs
cat /var/log/syslog
cat /var/log/apache2/error.log

# Conf
/etc/apache2/apache2.conf
/etc/apache2/sites-available
/etc/apache2/mods-available
/etc/php5/apache2/php.ini
/etc/mysql/my.cnf

4) apache2_commands

service apache2 reload/stop/start/restart/check
systemctl restart apache2
a2ensite / a2dissite
a2enmod / a2dismod
a2enconf / a2disconf

5) apache2_change_worker

service apache2 stop
a2dismod mpm_event
a2dismod mpm_prefork

nano /etc/apache2/mods-available/mpm_prefork.conf

<IfModule mpm_prefork_module>
        StartServers              4
        MinSpareServers           20
        MaxSpareServers           40
        MaxRequestWorkers         200
        MaxConnectionsPerChild    4500
</IfModule>

a2enmod mpm_prefork
service apache2 start

6) apache2_safety

nano /etc/apache2/apache2.conf

# Security
ServerSignature Off
ServerTokens Prod

service apache2 restart

7) php5_config

## WARNING ! PHP 5 is now obsolete, please use PHP 7 or greater

nano /etc/php5/apache2/php.ini

; Max execution time for a script in seconds
max_execution_time = 60
; Max time for a script to parse its data (POST, GET..)
max_input_time = 60
; Max mem for a script 
memory_limit = 256M
; Max upload size
upload_max_filesize = 10G
; Display errors
display_errors = Off
; Some potentially dangerous functions to disable
disable_functions = symlink,shell_exec,exec,proc_close,proc_open,popen,system,dl,passthru,escapeshellarg,escapeshellcmd,
; UTF-8 Custom config
mbstring.language=UTF-8
mbstring.detect_order=auto

service apache2 restart

8) VirtualHost

# New user and ownerships
adduser username
mkdir /home/username/public_html
chown -R www-data:username /home/username/public_html

# Virtual Hosts
cd /etc/apache2/sites-available
nano template.conf 

<VirtualHost *:80>
	# Addresses
	ServerName www.website.dom
	ServerAlias website.dom
	ServerAdmin admin@localhost
	
	# Directory and rules
	DocumentRoot /home/userdir/public_html
	<Directory /home/userdir/public_html>
		Options Indexes FollowSymLinks MultiViews
		AllowOverride All
		Require all granted
	</Directory>

	# Logging
	# LogLevel settings : debug, info, notice, warn, error, crit, alert
	LogLevel warn
	ErrorLog ${APACHE_LOG_DIR}/website-error.log
	CustomLog ${APACHE_LOG_DIR}/website-access.log combined
</VirtualHost>

cp template.conf yourwebsite.com.conf

# Activation
a2ensite votresite.com.conf
service apache2 reload

9) phpinfo

nano /home/username/public_html/phpinfo.php 

<?php

// Show all information, defaults to INFO_ALL
phpinfo();

?>

chown -R www-data:username /home/username/public_html