This document discusses web servers. It provides an overview of web clients and web servers, and describes how web servers handle static and dynamic content. The document outlines the typical architecture of a two-tier or three-tier client-server system for delivering web pages. It also discusses the GET and POST request methods, phases of request handling, popular web servers like Apache and IIS, and factors to consider when selecting a web server.
REST stands for Representational State Transfer. (It is sometimes spelled "ReST".) It relies on a stateless, client-server, cacheable communications protocol -- and in virtually all cases, the HTTP protocol is used. REST is an architecture style for designing networked applications.
Database server and client are two important software that you need to work with databases. In order to use SQL to interact with a database server you must use a good database client software.
This presentation explains the concept of a database server and a client.
Web Server Technologies II: Web Applications & Server MaintenancePort80 Software
Supporting Web applications: server-side programming and Web application frameworks. Web server maintenance: Web Analytics (Logs and Log Analysis), Dealing with bots and spiders, Server and site monitoring, Tuning and acceleration, Programmatic administration.
REST stands for Representational State Transfer. (It is sometimes spelled "ReST".) It relies on a stateless, client-server, cacheable communications protocol -- and in virtually all cases, the HTTP protocol is used. REST is an architecture style for designing networked applications.
Database server and client are two important software that you need to work with databases. In order to use SQL to interact with a database server you must use a good database client software.
This presentation explains the concept of a database server and a client.
Web Server Technologies II: Web Applications & Server MaintenancePort80 Software
Supporting Web applications: server-side programming and Web application frameworks. Web server maintenance: Web Analytics (Logs and Log Analysis), Dealing with bots and spiders, Server and site monitoring, Tuning and acceleration, Programmatic administration.
The Web Connectivity API allows you to quickly and easily connect and send messages between your mobile or desktop web applications, pages and servers, using a unified addressing and messaging system. The API consists of a JavaScript™ library for client development and simple HTTP interface allowing you to connect your web servers. We also provide a Web Connectivity Ruby on Rails plugin for rapid web application development.
A great power point presentation for DBMS Concepts from start to end and with best examples chapter by chapter. Please go though each chapters sequentially for your knowledge.
A very easy going study material for better understanding and concepts of Database Management System.
A primer that I put together for my Network Engineering team to help them understand Exchange. This goes into detail on how MAPI, and other exchange stack protocols work across the network.
Every website needs to be hosted with a web hosting company in order to be accessible over the Internet. There are several terms that are used in web hosting. Hence, it becomes essential to be aware of, as well as understand these terms, especially when availing web hosting services.
Hi fellas,
Here is a ppt which helps you to have some basic idea on Web servers, Application servers, Shared and Dedicated Hosting, Back up server and SSL concepts...
Technology pool is amazingly very vast.
This is a drop of it.
This paper presents comparison study among three
of the most famous Business Process Management
Systems, Bizagi, ProcessMaker, and Joget. Bizagi is
close source, while ProcessMaker and Joget are open
source. The comparison framework has been devel-
oped based on the most features that needed to be in-
teracted when developing work
ow system. Simple
business process has been used as case study that de-
scribes the online application for master applicants
at modern Arab university. Systems have been devel-
oped using those tools. After that the comparison was
done according to the framework. Finally the results
are pointing according the given measurement.
According to our framework and selected features the
study found that the Bizagi has the best performance
and the second is ProcessMaker. However, this by no
means is a complete comparison.
In business process modelling Bizagi outperforms the
other tools. However in form aspects ProcessMaker
and Joget outperform Bizagi.
The Web Connectivity API allows you to quickly and easily connect and send messages between your mobile or desktop web applications, pages and servers, using a unified addressing and messaging system. The API consists of a JavaScript™ library for client development and simple HTTP interface allowing you to connect your web servers. We also provide a Web Connectivity Ruby on Rails plugin for rapid web application development.
A great power point presentation for DBMS Concepts from start to end and with best examples chapter by chapter. Please go though each chapters sequentially for your knowledge.
A very easy going study material for better understanding and concepts of Database Management System.
A primer that I put together for my Network Engineering team to help them understand Exchange. This goes into detail on how MAPI, and other exchange stack protocols work across the network.
Every website needs to be hosted with a web hosting company in order to be accessible over the Internet. There are several terms that are used in web hosting. Hence, it becomes essential to be aware of, as well as understand these terms, especially when availing web hosting services.
Hi fellas,
Here is a ppt which helps you to have some basic idea on Web servers, Application servers, Shared and Dedicated Hosting, Back up server and SSL concepts...
Technology pool is amazingly very vast.
This is a drop of it.
This paper presents comparison study among three
of the most famous Business Process Management
Systems, Bizagi, ProcessMaker, and Joget. Bizagi is
close source, while ProcessMaker and Joget are open
source. The comparison framework has been devel-
oped based on the most features that needed to be in-
teracted when developing work
ow system. Simple
business process has been used as case study that de-
scribes the online application for master applicants
at modern Arab university. Systems have been devel-
oped using those tools. After that the comparison was
done according to the framework. Finally the results
are pointing according the given measurement.
According to our framework and selected features the
study found that the Bizagi has the best performance
and the second is ProcessMaker. However, this by no
means is a complete comparison.
In business process modelling Bizagi outperforms the
other tools. However in form aspects ProcessMaker
and Joget outperform Bizagi.
Type "Google.com" into the Browser and Hit Enter: What Happens Next?Graeme Mathieson
I haven’t done any interviewing for a while but I went through a period of growth in one of the companies I worked for where we were feverishly expanding the development team, so we had to be a little more systematic in our approach to interviewing. Instead of just having an open conversation with candidates to see where it led (which is what I’d previously done in such situations), I wound up preparing a ‘standard’ set of questions. It took a few goes, but eventually I settled on a favourite question for the technical portion of the interview:
"When I pull up my favourite Internet browser, type “google.com” into the address bar, and press return, what happens?"
I reckon it’s a doozy of a technical question. There’s so much breadth and depth in that answer. Let's dig into it a bit more...
Architecting for Scalable and Usable Web Applications
As Enterprises and Software Vendors start to develop more and more applications on the Internet there is an increasing importance to architect these applications for both growth and for the optimal user experience. Software + Services allows you to develop fantastic applications, but there are pitfalls with architecting the applications in the wrong way.
Our Central Region Architect Evangelists will lead us through two great discussions on scaling web applications and creating the best possible user experience.
Session 1: Architecting for Scalable Web Applications In this session we will explore the patterns that typical applications follow as their scalability needs grow due to increased demand. We will also discuss best practices from companies that have gone up the scalability curve like Amazon.com, MySpace and Flickr. We will discuss the common bottlenecks that prevent scalability as well as how to tackle tough issues like state management in a application that is scaled across servers and even data centers. We will also discuss the “scale later” philosophy and how it should be accompanied by a solid plan to scale your applications.
Session 2: Architecting for Usable Web Applications In this session we will discuss how to architect your application with the user in mind. We have more choices than ever before for developing applications (Traditional Web Apps, AJAX, RIA technologies like Flex and Microsoft Silverlight and even smart clients) and picking the technology is only part of the solution. The architecture of the application must be designed correctly to provide a pleasing user experience and (potentially) to add new and interesting clients in the future.
HTTP Session Replication with Oracle Coherence, GlassFish, WebLogicOracle
In this talk we will cover the integration of Coherence and Application Servers like Oracle WebLogic and Oracle GlassFish Server, and touch on the native capabilities of each server for HTTP session state management as well. The integration makes it simpler to access Coherence named caches through resource injection. It also provides an optimized integration of Coherence*Web for HTTP session state management. From a management perspective, it offers Coherence cluster configuration support through the WLS administration domain as well as Runtime monitoring support through the WebLogic console.
Web Server Types - Understanding a Web ServerCloudtechtiq
Explore different web server types and gain a better understanding of a web server. Learn about web server technologies. Get insights into web server types and functions.
This presentation is based on web server. It is just an overview about web server and its types. It gives an idea about need of server management organization.
This paper presents comparison study among three
of the most famous Business Process Management
Systems, Bizagi, ProcessMaker, and Joget. Bizagi is
close source, while ProcessMaker and Joget are open
source. The comparison framework has been devel-
oped based on the most features that needed to be in-
teracted when developing work
ow system. Simple
business process has been used as case study that de-
scribes the online application for master applicants
at modern Arab university. Systems have been devel-
oped using those tools. After that the comparison was
done according to the framework. Finally the results
are pointing according the given measurement.
According to our framework and selected features the
study found that the Bizagi has the best performance
and the second is ProcessMaker. However, this by no
means is a complete comparison.
In business process modelling Bizagi outperforms the
other tools. However in form aspects ProcessMaker
and Joget outperform Bizagi.
Sudan University of science and Technology College of graduate studies College of Computer Science and Information Technology Msc in Computer Science – Software Engineering Track
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
1. Web Servers
Sudan University for Science and Technology
College of graduate studies
Msc in Computer Science
Presented by
Mohamed Zeinelabdeen Abdelgader
1
2. Presentation Outline
An Over View
Web Clients and Web Servers
Dynamic & Static Content
System Architecture
Request methods.
Accessing web servers
Request Handling Phases
Most Famous Web Servers
Selecting a web server
2
3. Various Meanings of “Server”
Server
Computer used to provide files or make programs available to
other computers
Server software
Used by a server computer to make files and programs available
to other computers
Many types of server
FTP server : remote file space, often read-only
Mail server : email system
News server : newsgroups messages
3
4. Web Clients and Web Servers
Client/server architectures
Client computers typically request services
Server processes clients’ requests.
Web server
a computer program that delivers (serves) content, such as web
pages, using the Hypertext Transfer Protocol (HTTP), over the
World Wide Web.
The term web server can also refer to the computer or virtual
machine running the program.
4
5. Platform Neutrality of the Web
Lets different types of computers, running different operating systems,
communicate
5
6. Static & Dynamic Content
Static page
Unchanging page retrieved from server
Dynamic page
Web page whose content is shaped by a program in
response to user requests
6
7. Dynamic Content (cont)
Server-side scripting
Programs running on a Web server to create Web pages
before sending them back to the requesting Web clients
Dynamic page-generation technologies
Active Server Pages (ASP)
JavaServer Pages (JSP)
Hypertext Preprocessor (PHP)
7
8. Two-Tier Client/Server Architecture
Request message
Message that a Web client sends to request a file or files
from a Web server
Typical request message
Request line
Optional request headers
Optional entity body
8
10. Two-Tier Client/Server Architecture (cont)
Request line
Contains a command, the name of the target resource, and
the protocol name and version number
Request headers
Can contain information about types of files that the client
will accept in response to a request
Entity body
Used to pass bulk information to the server
10
11. Three-Tier or N-Tier Client/Server
Architectures
Three-tier architecture
Extends two-tier architecture to allow additional processing
Third tier includes software applications that supply
information to the Web server
Sometimes know as N-tier or multi-tier architectures
11
12. Message Flows in a Three-Tier Client/
Server
Client tier Middle tier
Information tier
12
14. Request methods (POST)
The data sent in a post request are not part of the URL and cannot be
seen by the user.
14
15. Accessing web servers
Must know host name on which web server resides
Remote web servers accessed using
Protocol Domain name
Page name
• URL: http://www.dtl.com/default.asp
• OR IP address http://207.60.134.230
Local web servers (on same machine) accessed using
machine name or localhost
15
16. Request Handling Phases
URI to filename translation;
Check access based on host address, and other
available information;
Get an user id from the HTTP request and validate it;
Authorize the user;
Determine the Multipurpose Internet Mail Extensions
(MIME) type of the requested object (the content type,
the encoding and the language);
Fix-ups (for example replace aliases by the actual path);
Send the actual data back to the client;
Log the request;
16
17. Most Famous Web Servers
Apache HTTP Server from Apache Software Foundation
Internet Information Services (IIS) from Microsoft
Sun Java Web Server from Sun Microsystems
Formerly Sun ONE Web Server, iPlanet Web Server, and
Netscape Enterprise Server
Zeus Web Server from Zeus Technology
17
18. Apache HTTP Server
Ongoing group software development effort
Dominated the Web since 1996 because it is free and
performs efficiently
Apache
Developed by Rob McCool at the University of Illinois
in1994 at the National Center for Supercomputing
Applications (NCSA)
Currently available on the Web at no cost as open-source
software
18
19. Microsoft Internet Information
Server
Comes bundled with current versions of Microsoft
Windows Server operating systems
Used on many corporate intranets
Supports the use of
ASP
ActiveX Data Objects
SQL database queries
19
20. Sun Java System Web Server
(Sun ONE, iPlanet, Netscape)
Descendant of the original NCSA Web server program
Formerly sold under the names
Sun ONE
Netscape Enterprise Server
iPlanet Enterprise Server
Charges between $1400 and $5000 for the licensing fee
20
21. Selecting a web server
Various criteria
Performance Reliability
e.g. how many client requests How robust is the web server?
per second can be How liable to crash? How easily
processed? Load balancing? recovered?
Support
Ease of Use
What support is
How easy to set up ,
provided by the
administer, learn?
vendor?
21
22. Selecting a web server (cont.)
Price Security
How must does it cost to What security functionality
buy and maintain? is offered? e.g. Secure
Sockets Layer SSL?
Functionality
•server side techologies supported? Operating system
e.g. ASP? JSP? etc What operating system(s)
does the web server
support?
22
23. Conclusion
Web servers respond to client requests by providing
resources.
A Web server is part of a multi-tier application. A multi-
tier application divides functionality into separate tiers.
The three-tier application contains an information tier, a
middle tier and a client tier.
The most common HTTP request types are get and post.
Selecting a web server depended on (Performance,
Reliability, Support, Functionality, Ease of Use, Price,
Security, Operating system).
23
24. References
Internet & World Wide Web How to Program (4nd
Edition)
http://www.serverwatch.com/tutorials/article.php/1363221
http://www.macronimous.com/resources/web_servers_demys
http://www.w3.org/Servers.html
http://en.wikipedia.org/wiki/Web_server
24