1. D*ata Networking f*or D*evelopers

2. About m*e
IT Infrastructure Architect
CCS
World’s Oldest Intern
Foxycart
jason@jasonamyers.com
www.binarydelusions.com

3. O*verview
• Why this is so important to you?
• Networking Overview
• Firewalls
• Load Balancers
• Caching
• Data Flow Mapping
• Application Performance Management
• Sniffing for Troubleshooting

4. Why is this So
Important?
• n-Tier Architectures
• RESTful APIs
• Service Oriented
Architectures
• HATEOAS

5. Frame
Dest Source
Data Link Ethernet
SOF
Len
Preamble Data FCS
MAC MAC
Packet
Source Dest
IP
HCS
Network
Opt
Pad
Misc Data
IP IP
Segment
Source Dest
Transport TCP
Opt
Pad
Misc Data
CS
Port Port
An Ethernet Frame

6. Firewalls
• Packet Filtering
• Closed from outside
• Allow return traffic to
a request from an
inside source

7. Firewalls: Allowing
Traffic f*rom O*utside
• “Poking Holes”
• Access Control List
Entries (Network)
• Network Address
Translation (NAT)
(Transport)
• Source, Destination,
Protocol, Port

8. ACL
NAT Firewall
Web
Service
Database Load Balancer
Firewall P*ositioning

9. Firewalls: Deeper
• Stateful Inspection
• Intrusion Prevention
• Application
• Next Generation

10. The D*ecesion P*oint

11. L*oad Balancers
• Local/Global
• VIPs
• Server Farms
• Real Servers
• SSL Offloading
• Stickiness

12. Server Farm Firewall
Web
Service VIP
Database Load Balancer
Firewall P*ositioning

13. L*oad Balancers: Types
• Response Time
• Bandwidth
• Hashes (address,
content, cookie, head,
url)
• Connection Count
• Least Loaded (health)
• Round Robin

14. Caching
• Reducing Expensive
Calls
• Results vary by
architecture... Greatly
• Changing rapidly

15. Caching: Where
• Content Delivery
Networks
• Hosts (FusionIO)
• Content Network
Devices (Switches, Load
Balancers)
• SANs (FastCache)

16. Firewall
Web
Service
Database Load Balancer
D*ata Flow

17. D*ata Flow: Sniffed

18. Sniffing D*emo

19. Application P*erformance Monitoring

20. New Relic

21. Transaction Tracing

22. App Server Stats

23. D*ashboarding

24. Who is Responsible?

25. Make i*t Simple

26. Questions
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