```bash
# Update system
yum -y update
yum -y groupinstall "Development Tools"
reboot

# Hostname and SSH keys
hostname nikhil.io
hostname > /etc/hostname
SSH_KEY_PASSPHRASE=""
ssh-keygen -q -N "$SSH_KEY_PASSPHRASE" -t rsa -f ~/.ssh/id_rsa
ssh-keygen -q -N "$SSH_KEY_PASSPHRASE" -t dsa -f ~/.ssh/id_dsa

# Disable SELinux
sed -ie 's/SELINUX=.*/SELINUX=disabled/g' /etc/selinux/config

# Install NTP
yum -y install ntp
systemctl start ntpd
systemctl enable ntpd

# Basic packages; using IPTables for now
yum -y install git zip rar nmap java-1.7.0-openjdk iptables python-virtualenv bind-utils mlocate

# Nginx
rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

# MySQL/MariaDB
yum -y install mariadb mariadb-server
systemctl start mariadb; systemctl enable mariadb
mysql_secure_installation

# PHP-FPM
yum -y install php-fpm
systemctl start php-fpm; systemctl enable php-fpm

# EPEL 7 (beta)
rpm -ivh http://mirror.ancl.hawaii.edu/linux/epel/beta/7/x86_64/epel-release-7-0.2.noarch.rpm
sed -ie 's/enabled=1/enabled=0/g' /etc/yum.repos.d/epel.repo

# EPEL packages
yum install htop byobu bash-completion iotop ncdu sysstat --enablerepo=epel

# Changed SSHD port
# .bash_profile as in Github project
updatedb
```