Appendix A: Test Computer System Configuration####

Installation of OpenSSH Server

sudo apt-get install openssh-server

Create SSH Keys

ssh-keygen -t rsa

Install and Connect to Test Computer System with Putty

http://support.hostgator.com/articles/specialized-help/technical/ssh-keying-through-putty-on-windows-or-linux

Static IP

Change DHCP to Static IP

sudo vi /etc/network/interfaces
sudo vi /etc/hosts
sudo reboot

Additional Reading about Networking

[Ubuntu Networking] https://help.ubuntu.com/lts/serverguide/networking.html

DNS

Installation of DNS

sudo apt-get update
sudo apt-get install bind9 bind9-doc bind9utils

Configure DNS

sudo vi /etc/bind/named.conf.options
sudo service bind9 restart

Create Primary Master for Domain

sudo vi /etc/bind/named.conf.local
sudo cp /etc/bind/db.local  /etc/bind/db.cptx86.com
sudo vi /etc/bind/db.cptx86.com
sudo service bind9 restart

Create Reverse DNS

sudo vi /etc/bind/named.conf.local
sudo cp /etc/bind/db.127 /etc/bind/db.192
sudo vi /etc/bind/db.192

Test Your DNS Lookup

nslookup two.cptx86.com

Test Reverse DNS Lookup

nslookup 192.168.1.202

Test Your DNS from Any Other Server on the Subnet

dig @192.168.1.202 cptx86.com -t AXFR

Security Through Obscurity

sudo vi /etc/bind/named.conf.local
sudo service bind9 restart
dig @192.168.1.202 cptx86.com -t AXFR

Modify Docker Daemon to Use DNS

sudo service docker restart
sudo vi /etc/hosts

Additional Reading about DNS

[Ubuntu Domain Name Service (DNS)] https://help.ubuntu.com/lts/serverguide/dns.html

NFS

Installation of NFS

sudo apt-get install nfs-kernel-server

Configure NFS

sudo vi /etc/exports
sudo exportfs -a
sudo service nfs-kernel-server start
showmount -e 192.168.1.202

Additional Reading about NFS

[Network File System] https://help.ubuntu.com/14.04/serverguide/network-file-system.html