Introduction To The Course Network Architecture Hervey Allen Chris Evans Phil Regnauld September 3 - 4, 2009 Santiago, Chile

Overview Course Architecture Diagram Introducing Your “ccTLD” How to Connect to Your Network Practice Exercises 2

Course Architecture This architecture was designed to give each group of students a sample “registry” to secure, operate, and defend Each group of two students will be assigned one registry network. Each group will have a separate registry consisting of a Cisco Router, Name Server, and Network Operations Center server at a minimum Other servers and routers exist on the network to simulate an “Internet connected” registry and support course delivery All student “servers” are virtualized! 3

Course Architecture Connectivity – Each “ccTLD” is separated from the network by a gateway router – which is under YOUR control – Each “ccTLD” connects to the same “ISP” router which provides live Internet access (except during attack scenarios) and inter-connectivity – The ISP router also connects the instructor management servers and attack boxes – The Core Router provides Internet access and connects you to the ISP and your “ccTLD” 4

Course Architecture DNS Architecture – A “Root” name server is setup on which provides delegations to the ccTLD networks and to regular TLDs when connected live. – A “ISP” name server provides recursive services for _everyone_ on the network – Each “ccTLD” has an authoritative name server for their own networks (e.g..TLD1) 5 Root (.).MGMT.TLD1.TLD2….TLD8

Course Architecture Core Services – Course Support Server: – NTP:

Course Architecture 7

8 YOU ARE HERE!

Course Architecture 9 A “ccTLD” Network

Course Architecture 10 The Core Router

Course Architecture 11 The “ISP” Router

Course Architecture 12 The Management Network

Course Architecture 13 Your Laptop Internet Access

Course Architecture 14 ccTLD Internet Connectivity

Course Architecture 15 Backchannel Connection to ccTLD ISP Router

Course Architecture 16 “External Monitoring”

Course Architecture 17 “Attack” Path

Course Architecture 18 Here’s YOUR ccTLD Network

Introducing Your “ccTLD” 19 A “Cheat Sheet” is Available on the Wiki Recursive NameServer

Introducing Your “ccTLD” 20 A “Cheat Sheet” is Available on the Wiki Root NameServer

Introducing Your “ccTLD” 21 A “Cheat Sheet” is Available on the Wiki ISP Router

Introducing Your “ccTLD” 22 A “Cheat Sheet” is Available on the Wiki Your Router

Introducing Your “ccTLD” 23 A “Cheat Sheet” is Available on the Wiki Your Auth NameServer

Introducing Your “ccTLD” 24 A “Cheat Sheet” is Available on the Wiki Your NOC

Introducing Your “ccTLD” 25 A “Cheat Sheet” is Available on the Wiki Your “Office” Workstation

Connecting to Your “ccTLD” 26 This is Great But, How Do I Use It?!

Connecting to Your “ccTLD” A Word on Programs – SSH (Secure Shell) is the primary connection protocol used in this network. You must provide a username AND a identity key to login – You can use any ssh client you are familiar with, but we have Putty available for Windows users – To view web pages on your network (e.g. network monitoring from your NOC), use any browser you are comfortable with – To view GUI programs on your network (e.g. wireshark, a packet capture program), you must redirect X11 output via a SSH connection On Windows, this requires a X11 server; we suggest Xming On Linux, its easy, use the –X option with ssh Download links for Putty, XMing, and identity keys are available on the wiki… 27

Connecting to Your “ccTLD” Connecting to Your Router – SSH as ‘tldadmin’ user to X.1 – Password: tldadmin! – Enable Password: tldadmin! Example: ssh 28 Remember - A “Cheat Sheet” is Available on the Wiki X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your Router with Putty – IP Address: – Click “Open” 29 X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your Router with Putty – You will be doing this a lot! – Save connection information as a Session! – IP Address: – Session Name: TLD-Router – Click “Save” 30 X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your Nameserver – SSH as ‘tldadmin’, with tldadmin identity key to X.10 – Password: tldadmin! Example: ssh –i tldadmin 31 Remember - A “Cheat Sheet” is Available on the Wiki X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your Nameserver with Putty – IP Address: X.10 – Enter “TLD-NS1” in Saved Sessions Box 32 X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your Nameserver with Putty – Click Connection -> SSH -> Auth – Identity File: Path to tldadmin.ppk 33

Connecting to Your “ccTLD” Connecting to Your Nameserver with Putty – Click Connection -> SSH -> X11 – Check “Enable X11 Forwarding” – Put Your Laptop IP Address Here e.g

Connecting to Your “ccTLD” Connecting to Your Nameserver with Putty – Click Connection -> Data – Enter ‘tldadmin’ for Auto-login username 35

Connecting to Your “ccTLD” Connecting to Your Nameserver with Putty – Click Session – Click “Save” 36

Connecting to Your “ccTLD” Connecting to Your Nameserver with Putty – Double Click the Session Name to Connect! 37

Connecting to Your “ccTLD” Connecting to Your NOC – SSH as ‘tldadmin’, with tldadmin identity key to X.30 – Password: tldadmin! Example: ssh –i tldadmin 38 Remember - A “Cheat Sheet” is Available on the Wiki X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your NOC with Putty – IP Address: X.30 – Enter “TLD-NOC” in Saved Sessions Box 39 X – your group number, 1-8

Connecting to Your “ccTLD” Connecting to Your NOC with Putty – Click Connection -> SSH -> Auth – Identity File: Path to tldadmin.ppk 40

Connecting to Your “ccTLD” Connecting to Your NOC with Putty – Click Connection -> SSH -> X11 – Check “Enable X11 Forwarding” – Put Your Laptop IP Address Here e.g

Connecting to Your “ccTLD” Connecting to Your NOC with Putty – Click Connection -> Data – Enter ‘tldadmin’ for Auto-login username 42

Connecting to Your “ccTLD” Connecting to Your NOC with Putty – Click Session – Click “Save” 43

Connecting to Your “ccTLD” Connecting to Your NOC with Putty – Double Click the Session Name to Connect! 44

Your “ccTLD” Cheat Sheet View Your Copy on the Course Wiki Usernames, Passwords, Keys, IPS, and sample command line instructions included 45

Your “ccTLD” Configuration Your Router Has Very Minor Security Precautions, No ACLs, and only allows SSH Your NOC is a base installation of Ubuntu 8.10 Desktop with OpenSSH server – We’ll be adding to this as we move through the course Your NS is a base installation of Ubuntu 8.10 Server with OpenSSH and BIND – We may make BIND configuration changes as we go 46

Ground Rules Please respect other student’s registries – while you have the power to do so, do not change them! Please respect the underlying servers running VMWare! Please don’t make any configuration changes except those presented in class – they may break attack scenarios! Please respect the course management servers, wiki and attack boxes – they are there to assist in course delivery! Do not conduct cyber attacks on others students or the instructors! 47

Practice Exercises View Exercises on Wiki 1.Login to your Nameserver by SSH 2.Login to your NOC by SSH 3.Run wireshark on your NOC with X11 Forwarding ** Be sure to save your SSH profiles to make connections easier – you’ll be doing a lot of this! 48 EX: Intro to Course Architecture

QUESTIONS ON YOUR “CCTLD”? 49 ?