Free Course
Client-Server Communication
by
HTTP/1 to HTTP/2 and all things Security
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About this Course
We use websites all the time, but how does clicking a link in your browser or typing in a URL in the address bar get you to a website? How does the server know what information you're looking for or how to send you that information once it's figured that out? How can you protect your users from attackers? Dig into this course and you'll be able to answer these questions!
This course will guide you through how a client communicates with a server. You'll learn about HTTP's request and response cycle, dig into HTTP headers and verbs, distinguish HTTP/1 from HTTP/2 capabilities, all while experiencing the importance of security by digging into the details of HTTPS. Throughout the course, you'll learn both security best practices, as well as ways to improve the performance of your web apps. We'll provide you with handcrafted servers where you'll diagnose problematic server setups, issues with SSL certificates, and even have a chance to hack an example bank website to transfer funds.
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Course Cost
Free
Timeline
Approx. 5 weeks
Skill Level
Advanced
Included in Course
Rich Learning Content
Interactive Quizzes
Taught by Industry Pros
Self-Paced Learning
Student Support Community
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Client-Server Communication
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Course Leads
-
Surma
Instructor
-
Richard Kalehoff
Instructor
What You Will Learn
Lesson 1
HTTP’s Request Response Cycle
- Learn about HTTP's request and response cycle.
- What makes up an HTTP requests and response?
- What originates an HTTP request and how do they relate to one another?
Lesson 1
HTTP’s Request Response Cycle
- Learn about HTTP's request and response cycle.
- What makes up an HTTP requests and response?
- What originates an HTTP request and how do they relate to one another?
Lesson 2
HTTP/1
- Find out how HTTP/1 is used in practice.
- Map the requests and response types from lesson 1 into HTTP verbs and response codes & headers.
Lesson 2
HTTP/1
- Find out how HTTP/1 is used in practice.
- Map the requests and response types from lesson 1 into HTTP verbs and response codes & headers.
Lesson 3
HTTPS
- How does HTTPS differ from HTTP?
- TLS, cryptography, and Certificate Authorities.
- HTTP Mixed Content issues.
Lesson 3
HTTPS
- How does HTTPS differ from HTTP?
- TLS, cryptography, and Certificate Authorities.
- HTTP Mixed Content issues.
Lesson 4
HTTP/2
- Learn how HTTP/2 improves on and extends HTTP/1.
- Look at optimizations for HTTP/1 that are now anti-patterns in HTTP/2.
Lesson 4
HTTP/2
- Learn how HTTP/2 improves on and extends HTTP/1.
- Look at optimizations for HTTP/1 that are now anti-patterns in HTTP/2.
Lesson 5
Security
- Look at and resolve common security problems like CORS, CSRF, XSS, and more!
Lesson 5
Security
- Look at and resolve common security problems like CORS, CSRF, XSS, and more!
Prerequisites and Requirements
We expect that you are comfortable reading and writing HTML, CSS and JavaScript. Knowledge of JavaScript's Fetch API is not required but will be beneficial. Check out our JavaScript Promises course to learn about Fetch.
Other Requirements:
- comfort with command line tools
See the technology requirements for using Udacity.
See the Technology Requirements for using Udacity.
Why Take This Course
Typically, web developers do not work directly with underlying platform of HTTP. But knowing how information is transferred across the wire is vital to creating efficient and professional apps. This course will dig into the ins and outs of application performance as well as cover common security pitfalls and how to prevent them.
What do I get?
- Instructor videos
- Learn by doing exercises
- Taught by industry professionals
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