https://www.cyberciti.biz/faq/rhel-redhat-fedora-opensuse-linux-install-rpmfile-command/
> sudo rpm -ivh .rpm.file-name

prep:
sudo yum upgrade -> 2.6.32-642.15.1.el6.x86_64
cat /etc/redhat-release -> CentOS release 6.8 (Final)
cat /var/lib/dbus/machine-id
1a) dbus-uuidgen --ensure
1b) mkdir -p /var/lib/dbus && uuidgen | sed s/-//g > /var/lib/dbus/machine-id
sudo yum install xorg-x11-server-Xvfb wget libX11-devel libXtst-devel openssl-devel gcc gcc-c++ libXi-devel gnutls-devel libXcomposite gtk2 libpng-devel libjpeg-devel libjpeg-turbo-devel
sudo yum groupinstall "X Window System" "Desktop" "Desktop Platform"

x11vnc:
sudo yum install git autoconf automake libgcrypt-devel
git clone https://github.com/LibVNC/libvncserver.git
git checkout LibVNCServer-0.9.9
./autogen.sh --with-x11vnc
make
sudo make install

fluxbox:
wget 'http://sourceforge.net/projects/fluxbox/files/fluxbox/1.3.7/fluxbox-1.3.7.tar.gz'
tar -xvzf fluxbox-1.3.7.tar.gz
cd fluxbox-1.3.7
./configure
make
sudo make install

4) Browsers

a) Firefox
yum install bzip2
https://download.mozilla.org/?product=firefox-43.0.3-SSL&os=linux&lang=en-US
wget 'https://download.mozilla.org/?product=firefox-43.0.3-SSL&os=linux64&lang=en-US' -O firefox-43.0.3.tar.bz2
bunzip2 firefox-43.0.3.tar.bz2
tar -xf firefox-43.0.3.tar

sudo yum install xterm

5) Get this shindig started!
export DISPLAY=:1
Xvfb :1 -screen 0 1024x768x16 &
x11vnc -display :1 -bg -nopw -xkb &
fluxbox &

Note: Chrome execution must be under a user, not 'root'
http://www.tecmint.com/install-google-chrome-on-redhat-centos-fedora-linux/


Appendix:
Firewall Off:

]$ /etc/init.d/iptables save
]$ /etc/init.d/iptables stop
]$ chkconfig iptables off


]$ systemctl stop firewalld
]$ systemctl disable firewalld


Centos 7:
ip addr