Data Networking for Developers

After years of designing networks, I wanted to share what I think are the most important parts for developers understanding how their applications are served.

Transcript

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. An Ethernet Frame Frame Ethernet Preamble SOF Dest MAC Source MAC Len Data FCS Data Link Packet Data Dest IP Source IP Misc HCS Opt Pad IP Network Segment Data Dest Port Source Port Opt Pad TCP Misc CS Transport
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. Firewall P*ositioning Web Service Database Load Balancer Firewall ACL NAT
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. Firewall P*ositioning Web Service Database Load Balancer Firewall Server Farm VIP
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. D*ata Flow Web Service Database Load Balancer Firewall
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 Rate me: https://joind.in/6722 Follow me: @jasonamyers