diff --git a/README.md b/README.md
index 5df979a..34b12c0 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Optimized configuration for Ubuntu server with EasyEngine
 
-* * *
+**[View on GitHub](https://github.com/VirtuBox/ubuntu-nginx-web-server)**
 
 ## Server Stack
 
@@ -16,7 +16,7 @@
 
 * * *
 
-Configuration files with comments and informations available by following the link **source**
+Configuration files with comments available by following the link **source**
 
 ## Initial configuration
 
@@ -44,8 +44,30 @@ git clone https://github.com/VirtuBox/ubuntu-nginx-web-server.git $HOME/ubuntu-n
 
 ```bash
 cp $HOME/ubuntu-nginx-web-server/etc/sysctl.d/60-ubuntu-nginx-web-server.conf /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+```
+
+Ubuntu 16.04 LTS do not support the new tcp congestion control algorithm bbr, we will use htcp instead.
+
+```bash
+# On ubuntu 18.04 LTS
+modprobe tcp_bbr
+echo -e '\nnet.ipv4.tcp_congestion_control = bbr\nnet.ipv4.tcp_notsent_lowat = 16384' >> /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+
+# On ubuntu 16.04 LTS
+modprobe tcp_htcp
+echo 'net.ipv4.tcp_congestion_control = htcp' >> /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+```
+
+Then to apply the configuration :
+
+```bash
 sysctl -e -p /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
-cp -f $HOME/ubuntu-nginx-web-server/etc/security/limits.conf /etc/security/limits.conf
+```
+
+Increase openfiles limits
+
+```bash
+sudo bash -c 'echo -e "*         hard    nofile      500000\n*         soft    nofile      500000\nroot      hard    nofile      500000\nroot      soft    nofile      500000\n"  >> /etc/security/limits.conf'
 ```
 
 ### disable transparent hugepage for redis
@@ -67,6 +89,12 @@ bash <(wget -qO - https://downloads.mariadb.com/MariaDB/mariadb_repo_setup) --ma
 sudo apt update && sudo apt install mariadb-server -y
 ```
 
+Secure MariaDB after install by running the command :
+
+```bash
+mysql_secure_installation
+```
+
 ### MySQL Tuning
 
 You can download my example of my.cnf, optimized for VPS with 4GB RAM. [my.cnf source](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/mysql/my.cnf)
@@ -89,7 +117,7 @@ sudo service mysql start
 ### Increase MariaDB open files limits
 
 ```bash
-cp -f $HOME/ubuntu-nginx-web-server/etc/systemd/system/mariadb.service.d/limits.conf /etc/systemd/system/mariadb.service.d/limits.conf
+echo -e '[Service]\nLimitNOFILE=500000' > /etc/systemd/system/mariadb.service.d/limits.conf
 
 sudo systemctl daemon-reload
 sudo systemctl restart mariadb
@@ -172,6 +200,26 @@ git -C /etc/php/ add /etc/php/ && git -C /etc/php/ commit -m "add php7.2 configu
 
 ```
 
+### Set the proper alternative for /usr/bin/php
+
+If you want to choose which version of php to use with the command `php`, you can use the command `update-alternatives`
+
+```bash
+# php5.6
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php5.6 80
+
+# php7.0
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php7.0 80
+
+# php7.1
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php7.1 80
+
+# php7.2
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php7.2 80
+```
+
+Then you can check php version with command `php -v`
+
 ## NGINX Configuration
 
 ### Additional Nginx configuration (/etc/nginx/conf.d)
@@ -180,7 +228,7 @@ git -C /etc/php/ add /etc/php/ && git -C /etc/php/ commit -m "add php7.2 configu
 - webp image mapping : webp.conf
 - new fastcgi_cache_bypass mapping for wordpress : map-wp-fastcgi-cache.conf
 - stub_status configuration on 127.0.0.1:80 : stub_status.conf
-- restore visitor real IP under cloudflare : cloudflare.conf
+- restore visitor real IP under Cloudflare : cloudflare.conf
 - mitigate WordPress DoS attack
 
 ```bash
@@ -250,7 +298,7 @@ git -C /etc/nginx/ add /etc/nginx/ && git -C /etc/nginx/ commit -m "update 22222
 
 ```bash
 sudo mkdir -p /etc/systemd/system/nginx.service.d
-cp -f $HOME/ubuntu-nginx-web-server/etc/systemd/system/nginx.service.d/limits.conf /etc/systemd/system/nginx.service.d/limits.conf
+echo -e '[Service]\nLimitNOFILE=500000' > /etc/systemd/system/nginx.service.d/limits.conf
 
 sudo systemctl daemon-reload
 sudo systemctl restart nginx.service
@@ -262,7 +310,7 @@ sudo systemctl restart nginx.service
 
 ### Harden SSH Security
 
-WARNING : SSH Configuration with root login allowed with ed25519 & ECDSA SSH keys only  [source](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/ssh/sshd_config)
+WARNING : SSH Configuration with root login allowed using SSH keys only  [source](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/ssh/sshd_config)
 
     cp -f $HOME/ubuntu-nginx-web-server/etc/ssh/sshd_config /etc/ssh/sshd_config
 
@@ -280,23 +328,20 @@ ufw default deny incoming
 CURRENT_SSH_PORT=$(grep "Port" /etc/ssh/sshd_config | awk -F " " '{print $2}')
 ufw allow $CURRENT_SSH_PORT
 
-# DNS - HTTP/S - FTP - NTP - RSYNC - DHCP - SNMP - Librenms - Netdata - EE Backend
+# DNS - HTTP/S - FTP - NTP - RSYNC - DHCP - EE Backend
 ufw allow 53
 ufw allow http
 ufw allow https
 ufw allow 21
 ufw allow 123
-ufw allow 161
 ufw allow 68
 ufw allow 546
 ufw allow 873
-ufw allow 6556
-ufw allow 19999
 ufw allow 22222
 
 
 # enable UFW
-ufw enable
+echo "y" | ufw enable
 ```
 
 ### Custom jails for fail2ban
@@ -359,6 +404,13 @@ bash <(curl -Ss https://my-netdata.io/kickstart.sh) all
 echo 1 >/sys/kernel/mm/ksm/run
 echo 1000 >/sys/kernel/mm/ksm/sleep_millisecs
 
+# increase open files limits for netdata
+sudo mkdir -p /etc/systemd/system/netdata.service.d
+echo -e '[Service]\nLimitNOFILE=500000' > /etc/systemd/system/netdata.service.d/limits.conf
+
+sudo systemctl daemon-reload
+sudo systemctl restart netdata.service
+
 # disable email notifications
 sudo sed -i 's/SEND_EMAIL="YES"/SEND_EMAIL="NO"/' /usr/lib/netdata/conf.d/health_alarm_notify.conf
 service netdata restart
@@ -403,14 +455,14 @@ root@vps:~ cheat cat
 [Github repository](https://github.com/scopatz/nanorc)
 
 ```bash
-wget https://raw.githubusercontent.com/scopatz/nanorc/master/install.sh -O- | sh
+wget https://raw.githubusercontent.com/scopatz/nanorc/master/install.sh -qO- | sh
 ```
 
 ### Add WP-CLI & bash-completion for user www-data
 
 ```bashrc
 # download wp-cli bash_completion
-cp -f $HOME/ubuntu-nginx-web-server/etc/bash_completion.d/wp-completion.bash https://raw.githubusercontent.com/wp-cli/wp-cli/master/utils/wp-completion.bash
+wget -qO /etc/bash_completion.d/wp-completion.bash https://raw.githubusercontent.com/wp-cli/wp-cli/master/utils/wp-completion.bash
 
 # change /var/www owner
 chown www-data:www-data /var/www
@@ -420,8 +472,7 @@ cp -f $HOME/ubuntu-nginx-web-server/var/www/.profile /var/www/.profile
 cp -f $HOME/ubuntu-nginx-web-server/var/www/.bashrc /var/www/.bashrc
 
 # set owner
-chown www-data:www-data /var/www/.profile
-chown www-data:www-data /var/www/.bashrc
+chown www-data:www-data /var/www/{.profile,.bashrc}
 ```
 
 ### Custom Nginx error pages
diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 0000000..34b12c0
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,495 @@
+# Optimized configuration for Ubuntu server with EasyEngine
+
+**[View on GitHub](https://github.com/VirtuBox/ubuntu-nginx-web-server)**
+
+## Server Stack
+
+- Ubuntu 16.04/18.04 LTS
+- Nginx 1.15.x / 1.14.x
+- PHP-FPM 7/7.1/7.2
+- MariaDB 10.3
+- REDIS 4.0
+- Memcached
+- Fail2ban
+- Netdata
+- UFW
+
+* * *
+
+Configuration files with comments available by following the link **source**
+
+## Initial configuration
+
+### System update and packages cleanup
+
+```bash
+apt-get update && apt-get upgrade -y && apt-get autoremove --purge -y && apt-get clean
+```
+
+### Install useful packages
+
+```bash
+sudo apt-get install haveged curl git unzip zip fail2ban htop nload nmon ntp gnupg gnupg2 wget pigz tree ccze  -y
+```
+
+### Clone the repository
+
+```bash
+git clone https://github.com/VirtuBox/ubuntu-nginx-web-server.git $HOME/ubuntu-nginx-web-server
+```
+
+### Tweak Kernel & Increase open files limits
+
+[source sysctl.conf](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/sysctl.conf) - [limits.conf source](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/security/limits.conf)
+
+```bash
+cp $HOME/ubuntu-nginx-web-server/etc/sysctl.d/60-ubuntu-nginx-web-server.conf /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+```
+
+Ubuntu 16.04 LTS do not support the new tcp congestion control algorithm bbr, we will use htcp instead.
+
+```bash
+# On ubuntu 18.04 LTS
+modprobe tcp_bbr
+echo -e '\nnet.ipv4.tcp_congestion_control = bbr\nnet.ipv4.tcp_notsent_lowat = 16384' >> /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+
+# On ubuntu 16.04 LTS
+modprobe tcp_htcp
+echo 'net.ipv4.tcp_congestion_control = htcp' >> /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+```
+
+Then to apply the configuration :
+
+```bash
+sysctl -e -p /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+```
+
+Increase openfiles limits
+
+```bash
+sudo bash -c 'echo -e "*         hard    nofile      500000\n*         soft    nofile      500000\nroot      hard    nofile      500000\nroot      soft    nofile      500000\n"  >> /etc/security/limits.conf'
+```
+
+### disable transparent hugepage for redis
+
+```bash
+echo never > /sys/kernel/mm/transparent_hugepage/enabled
+```
+
+* * *
+
+## EasyEngine Setup
+
+### Install MariaDB 10.3
+
+Instructions available in [VirtuBox Knowledgebase](https://kb.virtubox.net/knowledgebase/install-latest-mariadb-release-easyengine/)
+
+```bash
+bash <(wget -qO - https://downloads.mariadb.com/MariaDB/mariadb_repo_setup) --mariadb-server-version=10.3 --skip-maxscale -y
+sudo apt update && sudo apt install mariadb-server -y
+```
+
+Secure MariaDB after install by running the command :
+
+```bash
+mysql_secure_installation
+```
+
+### MySQL Tuning
+
+You can download my example of my.cnf, optimized for VPS with 4GB RAM. [my.cnf source](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/mysql/my.cnf)
+
+```bash
+cp -f $HOME/ubuntu-nginx-web-server/etc/mysql/my.cnf /etc/mysql/my.cnf
+```
+
+It include modification of innodb_log_file_size variable, so you need to use the following commands to apply the new configuration :
+
+```bash
+sudo service mysql stop
+
+sudo mv /var/lib/mysql/ib_logfile0 /var/lib/mysql/ib_logfile0.bak
+sudo mv /var/lib/mysql/ib_logfile1 /var/lib/mysql/ib_logfile1.bak
+
+sudo service mysql start
+```
+
+### Increase MariaDB open files limits
+
+```bash
+echo -e '[Service]\nLimitNOFILE=500000' > /etc/systemd/system/mariadb.service.d/limits.conf
+
+sudo systemctl daemon-reload
+sudo systemctl restart mariadb
+```
+
+## Install EasyEngine
+
+```bash
+# noninteractive install - you can replace $USER with your username & root@$HOSTNAME by your email
+sudo bash -c 'echo -e "[user]\n\tname = $USER\n\temail = root@$HOSTNAME" > $HOME/.gitconfig'
+
+wget -qO ee rt.cx/ee && bash ee
+```
+
+### enable ee bash_completion
+
+```bash
+source /etc/bash_completion.d/ee_auto.rc
+```
+
+### Install Nginx, php5.6, php7.0, postfix, redis and configure EE backend
+
+```bash
+ee stack install
+ee stack install --php7 --redis --admin --phpredisadmin
+```
+
+### Set your email instead of root@localhost
+
+```bash
+echo 'root: my.email@address.com' >> /etc/aliases
+newaliases
+```
+
+### Install Composer - Fix phpmyadmin install issue
+
+```bash
+cd ~/ ||exit
+curl -sS https://getcomposer.org/installer | php
+mv composer.phar /usr/bin/composer
+
+chown www-data:www-data /var/www
+sudo -u www-data -H composer update -d /var/www/22222/htdocs/db/pma/
+```
+
+### Allow shell for www-data for SFTP usage
+
+```bash
+usermod -s /bin/bash www-data
+```
+
+## PHP 7.1 & 7.2 Setup
+
+### Install php7.1-fpm
+
+```bash
+# php7.1-fpm
+apt update && apt install php7.1-fpm php7.1-cli php7.1-zip php7.1-opcache php7.1-mysql php7.1-mcrypt php7.1-mbstring php7.1-json php7.1-intl \
+php7.1-gd php7.1-curl php7.1-bz2 php7.1-xml php7.1-tidy php7.1-soap php7.1-bcmath -y php7.1-xsl
+
+# copy php-fpm pools & php.ini configuration
+cp -rf $HOME/ubuntu-nginx-web-server/etc/php/7.1/fpm/* /etc/php/7.1/fpm/
+service php7.1-fpm restart
+
+git -C /etc/php/ add /etc/php/ && git -C /etc/php/ commit -m "add php7.1 configuration"
+
+```
+
+### Install php7.2-fpm
+
+```bash
+# php7.2-fpm
+apt update && apt install php7.2-fpm php7.2-xml php7.2-bz2 php7.2-zip php7.2-mysql php7.2-intl php7.2-gd php7.2-curl php7.2-soap php7.2-mbstring php7.2-bcmath -y
+
+# copy php-fpm pools & php.ini configuration
+cp -rf $HOME/ubuntu-nginx-web-server/etc/php/7.2/fpm/* /etc/php/7.2/fpm/
+service php7.2-fpm restart
+
+git -C /etc/php/ add /etc/php/ && git -C /etc/php/ commit -m "add php7.2 configuration"
+
+```
+
+### Set the proper alternative for /usr/bin/php
+
+If you want to choose which version of php to use with the command `php`, you can use the command `update-alternatives`
+
+```bash
+# php5.6
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php5.6 80
+
+# php7.0
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php7.0 80
+
+# php7.1
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php7.1 80
+
+# php7.2
+sudo update-alternatives --install /usr/bin/php php /usr/bin/php7.2 80
+```
+
+Then you can check php version with command `php -v`
+
+## NGINX Configuration
+
+### Additional Nginx configuration (/etc/nginx/conf.d)
+
+- New upstreams (php7.1, php7.2, netdata) : upstream.conf
+- webp image mapping : webp.conf
+- new fastcgi_cache_bypass mapping for wordpress : map-wp-fastcgi-cache.conf
+- stub_status configuration on 127.0.0.1:80 : stub_status.conf
+- restore visitor real IP under Cloudflare : cloudflare.conf
+- mitigate WordPress DoS attack
+
+```bash
+# copy all common nginx configurations
+cp -rf $HOME/ubuntu-nginx-web-server/etc/nginx/conf.d/* /etc/nginx/conf.d/
+
+# commit change with git
+git -C /etc/nginx/ add /etc/nginx/ && git -C /etc/nginx/ commit -m "update conf.d configurations"
+```
+
+### EE common configuration
+
+```bash
+cp -rf $HOME/ubuntu-nginx-web-server/etc/nginx/common/* /etc/nginx/common/
+
+# commit change with git
+git -C /etc/nginx/ add /etc/nginx/ && git -C /etc/nginx/ commit -m "update common configurations"
+```
+
+### Compile last Nginx mainline release with [nginx-ee script](https://github.com/VirtuBox/nginx-ee)
+
+```bash
+bash <(wget-qO - https://raw.githubusercontent.com/VirtuBox/nginx-ee/master/nginx-build.sh)
+```
+
+* * *
+
+## Custom configurations
+
+### clean php-fpm php.ini configuration
+
+```bash
+# PHP 7.0
+cp -rf $HOME/ubuntu-nginx-web-server/etc/php/7.0/* /etc/php/7.0/
+service php7.0-fpm restart
+
+git -C /etc/php/ add /etc/php/ && git -C /etc/php/ commit -m "add php7.2 configuration"
+```
+
+### Nginx optimized configurations
+
+```bash
+# TLSv1.2 TLSv1.3 only
+cp -f $HOME/ubuntu-nginx-web-server/etc/nginx/nginx.conf /etc/nginx/nginx.conf
+
+# TLS intermediate - TLS v1.0 v1.1 v1.2 v1.3
+cp -f $HOME/ubuntu-nginx-web-server/etc/nginx/nginx.conf /etc/nginx/nginx-intermediate.conf
+
+# TLSv1.2 only
+cp -f $HOME/ubuntu-nginx-web-server/etc/nginx/nginx.conf /etc/nginx/nginx-tlsv12.conf
+
+# commit change with git
+git -C /etc/nginx/ add /etc/nginx/ && git -C /etc/nginx/ commit -m "update nginx.conf configurations"
+```
+
+### Nginx configuration for netdata
+
+```bash
+# add nginx reverse-proxy for netdata on https://yourserver.hostname:22222/netdata/
+cp -f $HOME/ubuntu-nginx-web-server/etc/nginx/sites-available/22222 /etc/nginx/sites-available/22222
+
+# commit change with git
+git -C /etc/nginx/ add /etc/nginx/ && git -C /etc/nginx/ commit -m "update 22222 configuration"
+```
+
+#### Increase Nginx open files limits
+
+```bash
+sudo mkdir -p /etc/systemd/system/nginx.service.d
+echo -e '[Service]\nLimitNOFILE=500000' > /etc/systemd/system/nginx.service.d/limits.conf
+
+sudo systemctl daemon-reload
+sudo systemctl restart nginx.service
+```
+
+* * *
+
+## Security
+
+### Harden SSH Security
+
+WARNING : SSH Configuration with root login allowed using SSH keys only  [source](https://github.com/VirtuBox/ubuntu-nginx-web-server/blob/master/etc/ssh/sshd_config)
+
+    cp -f $HOME/ubuntu-nginx-web-server/etc/ssh/sshd_config /etc/ssh/sshd_config
+
+### UFW
+
+Instructions available in [VirtuBox Knowledgebase](https://kb.virtubox.net/knowledgebase/ufw-iptables-firewall-configuration-made-easier/)
+
+```bash
+# enable ufw log - allow outgoing - deny incoming
+ufw logging low
+ufw default allow outgoing
+ufw default deny incoming
+
+# allow incoming traffic on SSH port
+CURRENT_SSH_PORT=$(grep "Port" /etc/ssh/sshd_config | awk -F " " '{print $2}')
+ufw allow $CURRENT_SSH_PORT
+
+# DNS - HTTP/S - FTP - NTP - RSYNC - DHCP - EE Backend
+ufw allow 53
+ufw allow http
+ufw allow https
+ufw allow 21
+ufw allow 123
+ufw allow 68
+ufw allow 546
+ufw allow 873
+ufw allow 22222
+
+
+# enable UFW
+echo "y" | ufw enable
+```
+
+### Custom jails for fail2ban
+
+- wordpress bruteforce
+- ssh
+- recidive (after 3 bans)
+- backend http auth
+- nginx bad bots
+
+```bash
+cp -rf $HOME/ubuntu-nginx-web-server/etc/fail2ban/filter.d/* /etc/fail2ban/filter.d/
+cp -rf $HOME/ubuntu-nginx-web-server/etc/fail2ban/jail.d/* /etc/fail2ban/jail.d/
+
+fail2ban-client reload
+```
+
+### Secure Memcached server
+
+```bash
+echo '-U 0' >> /etc/memcached.conf
+sudo systemctl restart memcached
+```
+
+If you do not use memcached, you can safely stop and disable it :
+
+```bash
+sudo systemctl stop memcached
+sudo systemctl disable memcached.service
+```
+
+## Optional
+
+### ee-acme-sh
+
+[Github repository](https://virtubox.github.io/ee-acme-sh/) - Script to setup letsencrypt certificates using acme.sh on EasyEngine servers
+
+- subdomain support
+- ivp6 support
+- wildcards certificates support
+
+```bash
+wget-qO install-ee-acme.sh https://raw.githubusercontent.com/VirtuBox/ee-acme-sh/master/install.sh
+chmod +x install-ee-acme.sh
+./install-ee-acme.sh
+
+# enable acme.sh & ee-acme-sh
+source .bashrc
+```
+
+### netdata
+
+[Github repository](https://github.com/firehol/netdata)
+
+```bash
+
+bash <(curl -Ss https://my-netdata.io/kickstart.sh) all
+
+# save 40-60% of netdata memory
+echo 1 >/sys/kernel/mm/ksm/run
+echo 1000 >/sys/kernel/mm/ksm/sleep_millisecs
+
+# increase open files limits for netdata
+sudo mkdir -p /etc/systemd/system/netdata.service.d
+echo -e '[Service]\nLimitNOFILE=500000' > /etc/systemd/system/netdata.service.d/limits.conf
+
+sudo systemctl daemon-reload
+sudo systemctl restart netdata.service
+
+# disable email notifications
+sudo sed -i 's/SEND_EMAIL="YES"/SEND_EMAIL="NO"/' /usr/lib/netdata/conf.d/health_alarm_notify.conf
+service netdata restart
+```
+
+### cht.sh (cheat)
+
+[Github repository](https://github.com/chubin/cheat.sh)
+
+```bash
+curl https://cht.sh/:cht.sh > /usr/bin/cht.sh
+chmod +x /usr/bin/cht.sh
+
+
+echo "alias cheat='cht.sh'" >> $HOME/.bashrc
+source $HOME/.bashrc
+```
+
+usage : `cheat <command>`
+
+```bash
+root@vps:~ cheat cat
+# cat
+
+# Print and concatenate files.
+
+# Print the contents of a file to the standard output:
+  cat file
+
+# Concatenate several files into the target file:
+  cat file1 file2 > target_file
+
+# Append several files into the target file:
+  cat file1 file2 >> target_file
+
+# Number all output lines:
+  cat -n file
+```
+
+### nanorc - Improved Nano Syntax Highlighting Files
+
+[Github repository](https://github.com/scopatz/nanorc)
+
+```bash
+wget https://raw.githubusercontent.com/scopatz/nanorc/master/install.sh -qO- | sh
+```
+
+### Add WP-CLI & bash-completion for user www-data
+
+```bashrc
+# download wp-cli bash_completion
+wget -qO /etc/bash_completion.d/wp-completion.bash https://raw.githubusercontent.com/wp-cli/wp-cli/master/utils/wp-completion.bash
+
+# change /var/www owner
+chown www-data:www-data /var/www
+
+# download .profile & .bashrc for www-data
+cp -f $HOME/ubuntu-nginx-web-server/var/www/.profile /var/www/.profile
+cp -f $HOME/ubuntu-nginx-web-server/var/www/.bashrc /var/www/.bashrc
+
+# set owner
+chown www-data:www-data /var/www/{.profile,.bashrc}
+```
+
+### Custom Nginx error pages
+
+[Github Repository](https://github.com/alexphelps/server-error-pages)
+
+Installation
+
+```bash
+# clone the github repository
+sudo -u www-data -H git clone https://github.com/alexphelps/server-error-pages.git /var/www/error
+```
+
+Then include this configuration in your nginx vhost by adding the following line
+
+```bash
+include common/error_pages.conf;
+```
+
+Published & maintained by [VirtuBox](https://virtubox.net)
diff --git a/docs/files/etc/sysctl.d/60-ubuntu-nginx-web-server.conf b/docs/files/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
index a80b261..61c9a9b 100644
--- a/docs/files/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+++ b/docs/files/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
@@ -1,9 +1,11 @@
 # Kernel sysctl configuration file for Linux
 #
-# Version 1.15 - 2018-10-13
+# Version 1.16 - 2018-10-23
 # Michiel Klaver - IT Professional
 # Modified by VirtuBox
 #
+#  Instructions available on https://github.com/VirtuBox/ubuntu-nginx-web-server
+#
 # Sources :
 # https://klaver.it/linux/sysctl.conf
 # https://easyengine.io/tutorials/linux/sysctl-conf/
@@ -26,9 +28,9 @@
 # http://en.wikipedia.org/wiki/Sysctl
 #
 # Usage
-# wget -O /etc/sysctl.d/10-ubuntu-nginx-web-server.conf https://virtubox.github.io/ubuntu-nginx-web-server/files/etc/sysctl.d/10-ubuntu-nginx-web-server.conf
+# wget -O /etc/sysctl.d/60-ubuntu-nginx-web-server.conf https://virtubox.github.io/ubuntu-nginx-web-server/files/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
 #
-# sysctl -e -p /etc/sysctl.d/10-ubuntu-nginx-web-server.conf
+# sysctl -e -p /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
 # For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and sysctl.conf(5) for more details.
 #
 
@@ -174,11 +176,6 @@ net.ipv6.conf.default.accept_ra_pinfo = 0
 ### TUNING NETWORK PERFORMANCE ###
 ###
 
-# enable BBR congestion control and set tcp_notsent_lowat to 16KB for HTTP/2 prioritization to work reliably
-# source : https://blog.cloudflare.com/http-2-prioritization-with-nginx/
-net.ipv4.tcp_congestion_control = bbr
-net.ipv4.tcp_notsent_lowat = 16384
-
 # For servers with tcp-heavy workloads, enable 'fq' queue management scheduler (kernel > 3.12)
 net.core.default_qdisc = fq
 
diff --git a/etc/sysctl.d/60-ubuntu-nginx-web-server.conf b/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
index a80b261..61c9a9b 100644
--- a/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
+++ b/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
@@ -1,9 +1,11 @@
 # Kernel sysctl configuration file for Linux
 #
-# Version 1.15 - 2018-10-13
+# Version 1.16 - 2018-10-23
 # Michiel Klaver - IT Professional
 # Modified by VirtuBox
 #
+#  Instructions available on https://github.com/VirtuBox/ubuntu-nginx-web-server
+#
 # Sources :
 # https://klaver.it/linux/sysctl.conf
 # https://easyengine.io/tutorials/linux/sysctl-conf/
@@ -26,9 +28,9 @@
 # http://en.wikipedia.org/wiki/Sysctl
 #
 # Usage
-# wget -O /etc/sysctl.d/10-ubuntu-nginx-web-server.conf https://virtubox.github.io/ubuntu-nginx-web-server/files/etc/sysctl.d/10-ubuntu-nginx-web-server.conf
+# wget -O /etc/sysctl.d/60-ubuntu-nginx-web-server.conf https://virtubox.github.io/ubuntu-nginx-web-server/files/etc/sysctl.d/60-ubuntu-nginx-web-server.conf
 #
-# sysctl -e -p /etc/sysctl.d/10-ubuntu-nginx-web-server.conf
+# sysctl -e -p /etc/sysctl.d/60-ubuntu-nginx-web-server.conf
 # For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and sysctl.conf(5) for more details.
 #
 
@@ -174,11 +176,6 @@ net.ipv6.conf.default.accept_ra_pinfo = 0
 ### TUNING NETWORK PERFORMANCE ###
 ###
 
-# enable BBR congestion control and set tcp_notsent_lowat to 16KB for HTTP/2 prioritization to work reliably
-# source : https://blog.cloudflare.com/http-2-prioritization-with-nginx/
-net.ipv4.tcp_congestion_control = bbr
-net.ipv4.tcp_notsent_lowat = 16384
-
 # For servers with tcp-heavy workloads, enable 'fq' queue management scheduler (kernel > 3.12)
 net.core.default_qdisc = fq