Coderfaire Data Networking for Developers

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Jason Myers

Tecnologia

About m*e
IT Infrastructure Architect
CCS

World’s Oldest Intern
Foxycart

jason@jasonamyers.com

www.binarydelusions.com

O*verview
• Why this is so important to you?

• Networking Overview

• Firewalls

• Load Balancers

• Caching

• Data Flow Mapping

• Application Performance Management

• Snifﬁng for Troubleshooting

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

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

Firewalls

• Packet Filtering

• Closed from outside

• Allow return trafﬁc to
a request from an
inside source

Firewalls: Allowing
Traffic f*rom O*utside
• “Poking Holes”

• Access Control List
Entries (Network)

• Network Address
Translation (NAT)
(Transport)

• Source, Destination,
Protocol, Port

ACL

NAT Firewall
Web

Service

Database Load Balancer

Firewall P*ositioning

Firewalls: Deeper

• Stateful Inspection

• Intrusion Prevention

• Application

• Next Generation

L*oad Balancers
• Local/Global

• VIPs

• Server Farms

• Real Servers

• SSL Ofﬂoading

• Stickiness

Server Farm Firewall
Web

Service VIP

Database Load Balancer

Firewall P*ositioning

L*oad Balancers: Types
• Response Time

• Bandwidth

• Hashes (address,
content, cookie, head,
url)

• Connection Count

• Least Loaded (health)

• Round Robin

Caching

• Reducing Expensive
Calls

• Results vary by
architecture... Greatly

• Changing rapidly

Caching: Where
• Content Delivery
Networks

• Hosts (FusionIO)

• Content Network
Devices (Switches, Load
Balancers)

• SANs (FastCache)

Firewall
Web

Service

Database Load Balancer

D*ata Flow

Questions
Rate me: https://joind.in/6722
Follow me: @jasonamyers

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Coderfaire Data Networking for Developers

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