This document provides an overview of Linux, Apache, MySQL, and PHP (LAMP) including:
- Client-server architecture with Apache as a web server and browsers as clients
- Modules that extend Apache's functionality like PHP for server-side scripting
- Using MySQL for databases and administering users
- Integrating PHP, Apache, and MySQL to dynamically generate web pages.
The document provides information about the Apache web server including:
- Apache is an open-source web server software widely used on Unix-like operating systems. It creates a new thread for each connection and supports modules to extend functionality.
- It uses multi-processing modules like Prefork, Worker, and Event to handle requests via multiple child processes and threads.
- Directories like conf, htdocs, and logs contain configuration files, server content, and logs respectively.
- Configuration is done by directives in text files like httpd.conf covering aspects like timeouts, modules, and virtual hosts.
Apache is an open source web server that is very popular, secure, fast, and reliable. It implements many features including CGI, SSL, virtual domains, and plug-in modules for extensibility. Apache uses simple text configuration files like httpd.conf to configure settings and is run from the command line using scripts like apachectl to start, stop, and restart the server.
The document provides information about the Apache HTTP Server software. It discusses that Apache is notable for playing a key role in the growth of the World Wide Web. It is the most popular web server software, serving over half of all websites. The document then covers Apache's features, uses, performance capabilities, and how to install and configure it in Linux.
The document provides an overview of PHP, MySQL, Apache, and how they relate. It discusses:
1) The history and purpose of PHP, MySQL, Apache, and how they work together in the AMP stack.
2) How PHP is used to create dynamic web pages, MySQL is used for data storage, and Apache runs PHP pages.
3) Configuration steps for installing PHP with IIS or WAMP on Windows systems.
an introduction to Lamp stack and how it is beneficial for students, presented by anant shrivastava on behalf of linux academy http://academylinux.com and you can contact anant @ http://anantshri.info
Maven is a build tool that can manage a project's build process, dependencies, documentation and reporting. It uses a Project Object Model (POM) file to store build configuration and metadata. Maven has advantages over Ant like built-in functionality for common tasks, cross-project reuse, and support for conditional logic. It works by defining the project with a POM file then running goals bound to default phases like compile, test, package to build the project.
Web servers – features, installation and configurationwebhostingguy
A web server is a computer program and server that allows for hosting of websites and web applications. It accepts requests from browsers and returns HTML documents and other content. Common technologies used on web servers include CGI scripts, SSL security, and ASP to provide dynamic content and server-side processing. Web servers work by accepting connections from browsers, retrieving content from disk, running local programs, and transmitting data back to clients as quickly as possible while supporting threads and processes.
The document provides information about the Apache web server including:
- Apache is an open-source web server software widely used on Unix-like operating systems. It creates a new thread for each connection and supports modules to extend functionality.
- It uses multi-processing modules like Prefork, Worker, and Event to handle requests via multiple child processes and threads.
- Directories like conf, htdocs, and logs contain configuration files, server content, and logs respectively.
- Configuration is done by directives in text files like httpd.conf covering aspects like timeouts, modules, and virtual hosts.
Apache is an open source web server that is very popular, secure, fast, and reliable. It implements many features including CGI, SSL, virtual domains, and plug-in modules for extensibility. Apache uses simple text configuration files like httpd.conf to configure settings and is run from the command line using scripts like apachectl to start, stop, and restart the server.
The document provides information about the Apache HTTP Server software. It discusses that Apache is notable for playing a key role in the growth of the World Wide Web. It is the most popular web server software, serving over half of all websites. The document then covers Apache's features, uses, performance capabilities, and how to install and configure it in Linux.
The document provides an overview of PHP, MySQL, Apache, and how they relate. It discusses:
1) The history and purpose of PHP, MySQL, Apache, and how they work together in the AMP stack.
2) How PHP is used to create dynamic web pages, MySQL is used for data storage, and Apache runs PHP pages.
3) Configuration steps for installing PHP with IIS or WAMP on Windows systems.
an introduction to Lamp stack and how it is beneficial for students, presented by anant shrivastava on behalf of linux academy http://academylinux.com and you can contact anant @ http://anantshri.info
Maven is a build tool that can manage a project's build process, dependencies, documentation and reporting. It uses a Project Object Model (POM) file to store build configuration and metadata. Maven has advantages over Ant like built-in functionality for common tasks, cross-project reuse, and support for conditional logic. It works by defining the project with a POM file then running goals bound to default phases like compile, test, package to build the project.
Web servers – features, installation and configurationwebhostingguy
A web server is a computer program and server that allows for hosting of websites and web applications. It accepts requests from browsers and returns HTML documents and other content. Common technologies used on web servers include CGI scripts, SSL security, and ASP to provide dynamic content and server-side processing. Web servers work by accepting connections from browsers, retrieving content from disk, running local programs, and transmitting data back to clients as quickly as possible while supporting threads and processes.
This document provides instructions for installing and configuring Apache HTTP Server on Linux. It describes downloading and extracting the Apache files, editing the configuration files such as httpd.conf to configure settings like the server name, ports, document root, error logs, and supplemental configuration files. It also explains how to set up virtual hosting by editing httpd.conf to include a vhosts.conf file, then creating that file and adding directives to allow multiple websites on different domains to run on the same IP address.
Here I covered the cores of Apache and also discuss each and every core. Virtual host, resistance server process some protocols like HTTP, SMTP, DNS FTP, are also be highlighted.
Focus on some installing part of apache.
A Day In The Life Of A Linux AdministratorEdureka!
Linux is everywhere. In your daily life, you are communicating with Linux servers, major internet sites such as Facebook and Google are using Linux servers. In addition, most modern televisions and Android mobiles run on Linux. At the root of it, Linux is free software used to control desktop, laptop, supercomputers, mobile devices, networking equipment, airplanes and automobiles and so on. With Linux knowledge and an inexpensive computer you can create tiny gadgets at home, making it a widely acclaimed weapon in your skills' armour.
Web servers are software applications that deliver web content accessible over the Internet or intranets. They host websites, files, scripts, and programs and serve them using HTTP and other protocols. Common web servers include Apache, Microsoft IIS, and Sun Java. Tomcat is an open source web server and servlet container. It implements Java servlets and JSP specifications, providing a Java HTTP environment. Tomcat's main components are Catalina for servlet handling, Coyote for HTTP connections, and Jasper for JSP compilation. While Apache is generally better for static content, Tomcat can be used with Apache for Java/JSP applications.
Remote and local file inclusion (RFI/LFI) attacks are a favorite choice for hackers and many security professionals aren't noticing. Why is RFI/LFI attractive to hackers? Our report explains why hackers exploit RFI/LFI and what security teams need to do to stop it.
Web development involves both front-end development and back-end development. Front-end development includes using languages like HTML, CSS, and Bootstrap to define the layout and visual design of websites. Back-end development involves using languages like SQL and PHP to manage the database and functional aspects of websites that users do not see. Key front-end technologies are HTML for content, CSS for styling, and Bootstrap for responsive design. Key back-end technologies are SQL for databases and PHP for server-side scripting.
The document discusses front-end architecture, which aims to improve code quality and create an efficient workflow. It outlines the responsibilities of a front-end architect in designing tools and processes. Some common front-end architecture patterns and principles are explained, like separation of concerns, CSS architectures (BEM, OOCSS, SMACSS), JavaScript architectures (MVC, MVP, MVVM), and abstractions (components, templates, state management). Tools and processes for building, testing, deploying code are also covered.
Wordpress essential training - Wordpress Presentation PPTAbdulla2410
This document discusses content management systems (CMS) and how they allow non-technical users to create and manage websites without coding knowledge. It focuses on WordPress as a popular open-source CMS, noting its ease of use, large library of free themes and plugins, and ability to build blogs, small business sites, and e-commerce stores. The document lists some major companies that use WordPress and provides an overview of topics covered in a WordPress training, such as domain registration, hosting, site development, e-commerce setup, SEO, freelancing, AdSense, and affiliate marketing.
The document discusses using web 2.0 tools for collaboration in the cloud. It defines collaboration 2.0 as adding distributed computing and collaboration platforms that allow for distance and asynchronicity. Benefits include social networks functioning as professional networks and blending synchronous and asynchronous work. Various categories of tools are covered, including social calendars, networking sites, bookmarking, desktops, wikis and documents. Examples like Google Docs, Dropbox and PBWorks are provided. The document advocates using these tools for projects, communication, organizing information and backups.
An operating system manages a computer's memory, processes, software and hardware. It allows users to interact with the computer without needing to understand its programming language. The most common operating systems for personal computers are Microsoft Windows, Apple Mac OS X, and Linux. An operating system coordinates running programs and allocates resources like the CPU and memory. Mobile devices run operating systems designed specifically for their use, like Apple iOS and Google Android.
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
This document provides an overview of web technology concepts and requirements for developing a website. It discusses how the web works from a user perspective, including necessary hardware, software, and internet connections. It then explains in more detail how information is transmitted and received through web requests and responses. Examples are given of common web applications and how e-commerce transactions are processed securely. Lastly, it outlines key requirements to collect from business owners regarding the goals and functionality needed for their website.
This document discusses web servers. It begins by defining a web server as hardware or software that helps deliver internet content. It then discusses the history of web servers, including the first web server created by Tim Berners-Lee at CERN in 1990. The document outlines common uses of web servers like hosting websites, data storage, and content delivery. It also describes how web servers work, including how they handle requests and responses using HTTP. Finally, it covers topics like installing and hosting a web server, load limits, overload causes and symptoms, and techniques to prevent overload.
This document provides an introduction to virtualization. It defines virtualization as running multiple operating systems simultaneously on the same machine in isolation. A hypervisor is a software layer that sits between hardware and guest operating systems, allowing resources to be shared. There are two main types of hypervisors - bare-metal and hosted. Virtualization provides benefits like consolidation, redundancy, legacy system support, migration and centralized management. Key types of virtualization include server, desktop, application, memory, storage and network virtualization. Popular virtualization vendors for each type are also listed.
HTTP Request Header and HTTP Status CodeAbhishek L.R
This document provides information about HTTP and HTTPS request headers and status codes. It defines HTTP and HTTPS, describing HTTPS as HTTP plus cryptographic protocols for security. It lists some important HTTP request headers and their descriptions, as well as HTTPS status codes grouped into classes: informational (1xx), successful (2xx), redirects (3xx), client errors (4xx), and server errors (5xx). Each status code class is summarized with example response codes and descriptions.
Server virtualization allows multiple virtual machines to run on the same physical server hardware. It increases hardware utilization and enables server consolidation. The benefits of virtualization include higher utilization, decreased provisioning times, load balancing, improved security, and easier disaster recovery. However, virtualization also increases management complexity and physical hardware failures can affect multiple virtual machines.
The document discusses various web developer tools including:
- Firebug for inspecting and editing HTML, CSS, debugging JavaScript, and monitoring network activity.
- YSlow for optimizing web page performance by reducing HTTP requests, compressing components, optimizing caching, and minimizing payload size.
- Page Speed by Google for optimizing caching, minimizing round trips, reducing request overhead and payload size, and optimizing browser rendering.
- Web Developer extension for adding developer tools to Firefox and Chrome browsers.
It also mentions validators for HTML, CSS, and JavaScript and the importance of performance optimization like minimizing HTTP requests to reduce page load time.
The document provides an overview of JavaScript and PHP. It discusses that JavaScript is a client-side scripting language used for validating user input and modifying HTML content without server communication. PHP is a server-side scripting language that executes code and returns HTML to browsers. Both languages are used for dynamic web development but JavaScript files have a .js extension and run in browsers while PHP files have a .php extension and run on servers.
This document provides instructions for installing and configuring Apache HTTP Server on Linux. It describes downloading and extracting the Apache files, editing the configuration files such as httpd.conf to configure settings like the server name, ports, document root, error logs, and supplemental configuration files. It also explains how to set up virtual hosting by editing httpd.conf to include a vhosts.conf file, then creating that file and adding directives to allow multiple websites on different domains to run on the same IP address.
Here I covered the cores of Apache and also discuss each and every core. Virtual host, resistance server process some protocols like HTTP, SMTP, DNS FTP, are also be highlighted.
Focus on some installing part of apache.
A Day In The Life Of A Linux AdministratorEdureka!
Linux is everywhere. In your daily life, you are communicating with Linux servers, major internet sites such as Facebook and Google are using Linux servers. In addition, most modern televisions and Android mobiles run on Linux. At the root of it, Linux is free software used to control desktop, laptop, supercomputers, mobile devices, networking equipment, airplanes and automobiles and so on. With Linux knowledge and an inexpensive computer you can create tiny gadgets at home, making it a widely acclaimed weapon in your skills' armour.
Web servers are software applications that deliver web content accessible over the Internet or intranets. They host websites, files, scripts, and programs and serve them using HTTP and other protocols. Common web servers include Apache, Microsoft IIS, and Sun Java. Tomcat is an open source web server and servlet container. It implements Java servlets and JSP specifications, providing a Java HTTP environment. Tomcat's main components are Catalina for servlet handling, Coyote for HTTP connections, and Jasper for JSP compilation. While Apache is generally better for static content, Tomcat can be used with Apache for Java/JSP applications.
Remote and local file inclusion (RFI/LFI) attacks are a favorite choice for hackers and many security professionals aren't noticing. Why is RFI/LFI attractive to hackers? Our report explains why hackers exploit RFI/LFI and what security teams need to do to stop it.
Web development involves both front-end development and back-end development. Front-end development includes using languages like HTML, CSS, and Bootstrap to define the layout and visual design of websites. Back-end development involves using languages like SQL and PHP to manage the database and functional aspects of websites that users do not see. Key front-end technologies are HTML for content, CSS for styling, and Bootstrap for responsive design. Key back-end technologies are SQL for databases and PHP for server-side scripting.
The document discusses front-end architecture, which aims to improve code quality and create an efficient workflow. It outlines the responsibilities of a front-end architect in designing tools and processes. Some common front-end architecture patterns and principles are explained, like separation of concerns, CSS architectures (BEM, OOCSS, SMACSS), JavaScript architectures (MVC, MVP, MVVM), and abstractions (components, templates, state management). Tools and processes for building, testing, deploying code are also covered.
Wordpress essential training - Wordpress Presentation PPTAbdulla2410
This document discusses content management systems (CMS) and how they allow non-technical users to create and manage websites without coding knowledge. It focuses on WordPress as a popular open-source CMS, noting its ease of use, large library of free themes and plugins, and ability to build blogs, small business sites, and e-commerce stores. The document lists some major companies that use WordPress and provides an overview of topics covered in a WordPress training, such as domain registration, hosting, site development, e-commerce setup, SEO, freelancing, AdSense, and affiliate marketing.
The document discusses using web 2.0 tools for collaboration in the cloud. It defines collaboration 2.0 as adding distributed computing and collaboration platforms that allow for distance and asynchronicity. Benefits include social networks functioning as professional networks and blending synchronous and asynchronous work. Various categories of tools are covered, including social calendars, networking sites, bookmarking, desktops, wikis and documents. Examples like Google Docs, Dropbox and PBWorks are provided. The document advocates using these tools for projects, communication, organizing information and backups.
An operating system manages a computer's memory, processes, software and hardware. It allows users to interact with the computer without needing to understand its programming language. The most common operating systems for personal computers are Microsoft Windows, Apple Mac OS X, and Linux. An operating system coordinates running programs and allocates resources like the CPU and memory. Mobile devices run operating systems designed specifically for their use, like Apple iOS and Google Android.
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
This document provides an overview of web technology concepts and requirements for developing a website. It discusses how the web works from a user perspective, including necessary hardware, software, and internet connections. It then explains in more detail how information is transmitted and received through web requests and responses. Examples are given of common web applications and how e-commerce transactions are processed securely. Lastly, it outlines key requirements to collect from business owners regarding the goals and functionality needed for their website.
This document discusses web servers. It begins by defining a web server as hardware or software that helps deliver internet content. It then discusses the history of web servers, including the first web server created by Tim Berners-Lee at CERN in 1990. The document outlines common uses of web servers like hosting websites, data storage, and content delivery. It also describes how web servers work, including how they handle requests and responses using HTTP. Finally, it covers topics like installing and hosting a web server, load limits, overload causes and symptoms, and techniques to prevent overload.
This document provides an introduction to virtualization. It defines virtualization as running multiple operating systems simultaneously on the same machine in isolation. A hypervisor is a software layer that sits between hardware and guest operating systems, allowing resources to be shared. There are two main types of hypervisors - bare-metal and hosted. Virtualization provides benefits like consolidation, redundancy, legacy system support, migration and centralized management. Key types of virtualization include server, desktop, application, memory, storage and network virtualization. Popular virtualization vendors for each type are also listed.
HTTP Request Header and HTTP Status CodeAbhishek L.R
This document provides information about HTTP and HTTPS request headers and status codes. It defines HTTP and HTTPS, describing HTTPS as HTTP plus cryptographic protocols for security. It lists some important HTTP request headers and their descriptions, as well as HTTPS status codes grouped into classes: informational (1xx), successful (2xx), redirects (3xx), client errors (4xx), and server errors (5xx). Each status code class is summarized with example response codes and descriptions.
Server virtualization allows multiple virtual machines to run on the same physical server hardware. It increases hardware utilization and enables server consolidation. The benefits of virtualization include higher utilization, decreased provisioning times, load balancing, improved security, and easier disaster recovery. However, virtualization also increases management complexity and physical hardware failures can affect multiple virtual machines.
The document discusses various web developer tools including:
- Firebug for inspecting and editing HTML, CSS, debugging JavaScript, and monitoring network activity.
- YSlow for optimizing web page performance by reducing HTTP requests, compressing components, optimizing caching, and minimizing payload size.
- Page Speed by Google for optimizing caching, minimizing round trips, reducing request overhead and payload size, and optimizing browser rendering.
- Web Developer extension for adding developer tools to Firefox and Chrome browsers.
It also mentions validators for HTML, CSS, and JavaScript and the importance of performance optimization like minimizing HTTP requests to reduce page load time.
The document provides an overview of JavaScript and PHP. It discusses that JavaScript is a client-side scripting language used for validating user input and modifying HTML content without server communication. PHP is a server-side scripting language that executes code and returns HTML to browsers. Both languages are used for dynamic web development but JavaScript files have a .js extension and run in browsers while PHP files have a .php extension and run on servers.
symfony: An Open-Source Framework for Professionals (Dutch Php Conference 2008)Fabien Potencier
This document provides an overview of the symfony framework presented by Fabien Potencier and Stefan Koopmanschap. It introduces symfony as an open-source PHP web framework built for professional websites and complex needs. It then demonstrates how to initialize a new symfony project, create modules and actions, implement templates and layouts, and integrate a database using Propel as the ORM.
This document introduces PHP and MySQL for dynamic web development. PHP is an open-source scripting language suited for web development that can generate HTML code on the server. MySQL is a popular open-source database management system. PHP and MySQL allow websites to be responsive and malleable by connecting to databases and generating customized HTML based on user inputs or database contents. Examples of dynamic websites that use these technologies include WordPress, Shopify, Facebook, and interactive data visualization projects.
The document discusses PHP, an open-source scripting language commonly used for web development. It can be embedded into HTML pages and is used to dynamically generate webpage content. PHP code is executed on the server and generates HTML that is sent to the browser. The document also discusses using XAMPP, a free and open-source cross-platform web server solution stack, to install and run PHP, MySQL, and Apache on your local computer for testing websites.
The document discusses the architecture and performance optimizations of NU.nl, the largest Dutch news website. It describes how NU.nl evolved from static HTML pages to a more dynamic site using a custom content management system built with PHP and MySQL. To improve performance, NU.nl implemented a layer of Varnish caching proxies, used Memcache, and generated pre-rendered HTML. It also utilized code sharing between sites and globalization techniques to support multiple language versions like the German Dnews.de site.
This document provides an introduction to PHP. It defines dynamic websites as those built using scripting languages like PHP, ASP.NET, JSP, and Ruby on Rails that generate code for the site on the server-side, compared to static websites built with HTML and JavaScript that only display pre-compiled pages. PHP is introduced as a widely used scripting language especially for web development that can be embedded into HTML. The document also discusses how PHP code is executed on the server and returns dynamic content to users, and how PHP can interface with databases like MySQL to power features like user accounts, content management, and data-driven sites.
This document provides an overview of various web development tools and technologies, including FTP, HTML, CSS, JavaScript, Flash, PHP, ASP, and content management systems. It discusses the purpose and basic usage of each tool. For example, it explains that FTP is used to transfer files between a local computer and web host, and that HTML is the underlying markup language that defines the structure and content of a web page. The document also provides learning resources and examples of text editors, FTP clients, and other tools.
PHP Basics is a presentation that introduces PHP. It discusses that PHP is a server-side scripting language used for building dynamic websites. It can be embedded into HTML. When a PHP file is requested, the server processes the PHP code and returns the output to the browser as HTML. The presentation covers PHP syntax, variables, data types, operators, functions, and conditional statements. It provides examples to illustrate basic PHP concepts and functionality.
The document provides an overview of the author's experience building web applications using Go. It discusses the author's background with various backend and frontend technologies. It then summarizes building web apps in Go, covering routing, handlers, middleware, models, rendering, frameworks, and packages. The author advocates composing simple packages together rather than relying on magic or large frameworks. The document also touches on developer tools for assets, hot reloading, and distribution packaging.
This document provides an overview of server-side web programming. It discusses how web servers deliver static and dynamic web pages using technologies like HTML, CSS, JavaScript, Java, PHP, and databases. It then covers common web servers like Apache and IIS. The main server-side technologies - CGI, servlets, and PHP - are explained. Servlets are Java classes that extend server capabilities, while PHP is a scripting language designed for web development. Examples are given to demonstrate basic servlets and PHP scripts. The document also mentions modifying configuration files, handling GET/POST requests, and returning JSON/XML data.
This document provides an introduction to dynamic web pages and PHP programming. It begins with an overview of programming concepts like sequence, choice, and repetition. It then discusses web application development, including static vs dynamic pages, and client-side vs server-side scripting. The document introduces PHP programming, embedding PHP in web pages, and getting user input via forms. It provides examples of simple PHP applications and exercises for learning PHP.
"Drupal is always so fast!" ... said no one, ever.
Drupal has a reputation as being a slow CMS, but that reputation is undeserved; there are many small things that impact a Drupal site's performance in sometimes substantial ways. This session will highlight many 'quick wins' that will get your site performing like a champ in no time!
Then we'll take a demonstration site that has many elements of real-world 'slow' Drupal sites, show how to do a quick performance evaluation/triage, and change the site from loading in 4-5 seconds to loading in less than a second, and maxing out at 2 requests per second to a speedy 4,000+ requests per second!
The session will also discuss the importance of a plan, benchmarking, and assumptions when you do performance work on your own Drupal site.
Slides from our CodeMash 2013 Precompiler session, "Web Development with Python and Django", including a breezy introduction to the Python programming language and the Django web framework. The example code repository is available at https://github.com/finiteloopsoftware/django-precompiler/
The document discusses various topics related to internet programming including client/server architecture, protocols, IP addressing, HTML, browsers, web servers, URLs, MIME types, scripting languages for client-side and server-side programming, CGI, and security issues. It provides an overview of these concepts and technologies at a high level for an internet engineering course. Examples and brief explanations are given for many of the topics to illustrate the essential information.
Cloud Computing in Systems Programming CurriculumSteven Miller
This document discusses proposed changes to a Systems Programming course (CS252) to incorporate cloud computing concepts. The course currently focuses on C/C++, operating systems, and networking. The proposal is to have students write mobile and web applications using HTML5, JavaScript frameworks, and cloud services on Bluemix. Students would work in groups on semester-long projects developing games, social apps, or other programs that run in browsers and mobile devices while calling APIs hosted on Bluemix. This aims to teach new generation web development skills and how applications can leverage cloud computing technologies.
PHP is a server-side scripting language commonly used for web development. It allows code to be embedded into HTML pages using tags. When a page request is received by the server, it will execute any PHP code, substitute the output into the HTML page, and send the resulting page to the client. PHP supports different data types including scalars like integers, floats and strings, as well as arrays to store multiple values.
1) File uploads in PHP require configuring php.ini settings like enabling file uploads and setting temporary storage directories with correct permissions.
2) Forms for file uploads need to use POST with multipart/form-data encoding and include file input fields and hidden fields.
3) PHP stores uploaded files in the $_FILES array, including the temporary filename, size, type, and original name, which can then be processed and moved to a permanent location.
Running and Developing Tests with the Apache::Test Frameworkwebhostingguy
The Apache::Test framework allows running and developing tests for Apache modules and products. Key features include:
- Running existing tests through the t/TEST program
- Setting up a new testing environment by installing Apache::Test and generating a Makefile
- Developing new tests by writing Perl scripts that use Apache::Test functions and assert results
- Options for running tests individually, repeatedly without restarts, or in parallel on different ports
This document provides instructions on installing and configuring memcached to improve the performance and scalability of MySQL. Memcached is installed using package managers or by compiling from source. It is configured to listen on ports and interfaces, allocate memory, and set thread counts. The typical usage involves applications loading data from MySQL into memcached for faster retrieval, with MySQL as the backing store if data is not found in the cache.
The document discusses Novell iChain, a solution for securing web applications and servers. It provides single sign-on, encrypts data as it passes through proxies, and removes direct access to web servers. It authenticates users through LDAP or certificates and authorizes access through rules stored in eDirectory. This simplifies management and security across multiple web server platforms and applications.
Load-balancing web servers Load-balancing web serverswebhostingguy
The document discusses different approaches to load balancing web servers to address issues like scaling performance, tolerating failures, and rolling upgrades. It describes three common solutions: redirecting requests through a front-end server; using round-robin DNS to distribute requests; and employing an intelligent load balancer switch that can distribute requests based on server load and detect failures. Each approach has advantages and disadvantages related to ease of implementation, visibility to users, and ability to handle session state. The document also discusses network designs and protocols involved in load balancing, including TCP connection setup and teardown.
The document compares three methods for consolidating SQL Server databases: 1) multiple databases on a single SQL Server instance, 2) a single database on multiple SQL Server instances, and 3) hypervisor-based virtualization. It finds that consolidating multiple databases onto a single instance has the lowest direct costs but reduces security and manageability. Using multiple instances improves security but has higher resource needs. Hypervisor-based virtualization maintains security while enabling features like high availability, but has higher licensing costs. The document aims to help decide which approach best balances these technical and business factors for a given environment.
Mod_perl brings together the Apache web server and Perl programming language. It allows Apache to be configured and extended using Perl, and significantly accelerates dynamic Perl content. Mod_perl supports Apache versions 1.3 and 2.x and integrates Perl at every stage of the request process to provide great flexibility and control over Apache functionality. The mod_perl community provides extensive documentation and quick support responses.
Mod_perl brings together the Apache web server and Perl programming language. It allows Apache to be configured and extended using Perl, and significantly accelerates dynamic Perl content. Mod_perl supports Apache versions 1.3 and 2.x and integrates Perl at every stage of the request process to provide great flexibility and control over Apache functionality. The mod_perl community provides extensive documentation and quick support responses.
The document discusses various aspects of designing an effective website, including analyzing content and target audiences, organizing site structure and navigation, and implementing design elements. The key steps outlined are to analyze content and audience needs, organize the site structure into main sections and subsections, and implement an intuitive navigation system to help users easily find relevant information. Maintaining and optimizing the site over time are also emphasized.
This white paper provides an architectural overview and configuration guidelines for deploying Microsoft SQL Server 2005 with Microsoft Windows Server 2008 on Dell PowerEdge servers and Dell storage systems. It documents best practices for implementing SQL Server 2005 solutions using Dell hardware and software components that have been tested and validated to help ensure successful deployment and optimal performance. The white paper covers storage configuration, network configuration, operating system configuration, and SQL Server configuration recommendations.
1. The document discusses the evolution of business models for IT infrastructure from proprietary systems within individual companies to more open standards and shared infrastructure leveraging the internet.
2. It describes new service models like client-server computing, web services, and on-demand/utility computing which allow flexible provisioning of computing resources on a needs basis.
3. Managing diverse IT infrastructures requires considerations around outsourcing non-core functions, developing service level agreements, managing legacy systems, and aligning infrastructure capabilities to business strategy through appropriate investment.
The document discusses different types of websites that can be created for business purposes including traditional, blog-based, and group/network sites. It provides information on setting up each type of site for free or at low cost using online tools or designers, and how to add features like domains, payment systems, and linking domains to sites. Options for free and cheap site creation using tools like Google Sites are demonstrated.
This document outlines Saint Louis University's strategy for improving power management of IT equipment to reduce costs and environmental impact. Key points include:
1) SLU aims to standardize power-optimized default settings on all managed PCs and laptops through automated software and establish policies around exceptions and existing devices.
2) Potential savings are estimated from generational improvements in computer hardware and adopting lower-power modes like sleep versus screensavers.
3) The strategy also involves consolidating servers, enabling energy-efficient settings on printers and other electronics, and establishing institutional goals around student computer energy use.
Excel and SQL Quick Tricks for Merchandiserswebhostingguy
This document provides instructions for using Microsoft SQL and Excel to extract data from a SmartSite SQL database, manipulate it in Excel using functions, and update the SQL tables with the modified data to streamline content work. It covers connecting to and querying SQL databases, common Excel functions for editing data, and steps for importing an Excel file into a SQL table to update information. Examples of specific SQL queries and Excel functions are provided along with a scenario walking through the full process.
The document discusses various topics related to virtualization including drivers for virtualization, practical applications, definitions of terms like virtualization and paravirtualization, and tools like Xen, VMWare, and Microsoft virtualization products. It provides information on installing and configuring Xen on SuSE Linux, discusses security and auditing considerations for Xen, and demonstrates Xen functionality.
The document discusses strategies for converting low-value hosting clients into high-value customers by marketing additional services. It recommends continuously marketing to clients through email, forums, blogs and surveys to promote add-on services like collaboration tools, applications, and infrastructure-as-a-service offerings which can significantly increase revenue per client. Measuring marketing campaigns and conversions is key to optimizing efforts to up-sell existing clients.
Microsoft PowerPoint presentation 2.175 Mbwebhostingguy
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1. Home Page
Title Page
Linux, Apache, Mysql, PHP
Sameer D. Sahasrabuddhe
KReSIT, IIT Bombay
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http://www.it.iitb.ac.in/˜sameerds/
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2. Home Page
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The World Wide Web
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3. Home Page
Client-Server Architecture
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• Server: provides services.
• Client: generates requests for services.
• May or may not run on the same machine.
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• Typically, they use a standard protocol for communication.
• For example, Apache is a webserver, the browser is a client and the
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protocol used is HTTP.
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4. What’s a webserver?
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• A processs that responds to requests for resources on port 80.
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• Typical requests are for hypertext files and related objects.
• The client uses a Universal Resource Locator (URL).
• Example - http://www.kernel.org/pub/
• A typical HTTP transaction:
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1. The browser (client) makes a request to the website.
Go Back 2. The webserver looks up the resource specified.
3. The webserver reads/generates the corresponding content and
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sends it to the browser (client).
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5. The Apache HTTP Server
Home Page
Title Page
• The number one http server on the Internet - 63% websites, as of
August 2002.
• A project of the Apache Software Foundation.
• Provides full source code and comes with an unrestrictive license -
the Apache Software License.
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• Runs on Windows NT/9x, Netware 5.x and above, OS/2, and most
versions of Unix, as well as several other operating systems.
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• Can be customised by writing “modules” using the Apache module
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6. What are modules?
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Apache’s functionality is contained in modules that you can choose to
Title Page include or exclude.
Types of modules
static modules compiled into the httpd binary.
Page 6 of 39 dynamic modules stored separately and can be optionally loaded at run-
time.
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third-party modules modules that are not included in the standard
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Apache HTTP Server distribution.
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7. Home Page
Title Page Some common modules
mod cgi Execution of CGI scripts.
mod imap Server-side imagemap processing.
mod include Server-parsed html documents (Server Side Includes).
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mod php Server-side scripting in PHP (PHP Hypertext Preprocessor).
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8. Home Page
Controlling Apache
Title Page
/etc/httpd/conf/httpd.conf The configuration file for the Apache HTTP
server.
.htaccess File used to control Apache’s behaviour on a per-directory ba-
sis.
Page 8 of 39 /etc/init.d/httpd Script used to control the httpd process - start, stop,
restart, reload, status.
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/var/log/httpd/ Contains the Apache logs - error.log, access.log
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9. Home Page
Apache content
Title Page
/var/www/html/ The “DocumentRoot” - all websites are served from
here by default.
$home/public html/ User’s directory for serving webpages. For exam-
ple, http://www.it.iitb.ac.in/˜sameerds/ is served
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from /home/sameerds/public html/
index.html “DirectoryIndex” that is used by default when a request
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specifies a directory.
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10. Dynamic Content Generation
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• Client-Server decoupling: the client never knows the physical format
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of a resource.
• The reply to a request is a data stream from the server.
• The server may transparently create or modify data. Even images can
be generated on the fly!
• This can be done in several ways:
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1. CGI - Common Gateway Interface to external programs.
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2. SSI - Server-Side Includes.
3. Server Side Scripts - the most flexible way to use dynamically
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generated webpages.
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11. Home Page
Title Page
PHP: Hypertext Preprocessor
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12. Home Page What is it?
Title Page
• A general purpose scripting language that is especially good for
server-side scripting.
• A project maintained by the Apache Software Foundation.
• All major operating systems - Linux, many Unix variants, Microsoft
Windows, Mac OS X, RISC OS, and probably others.
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• All major webservers - Apache, Microsoft IIS, PWS, Netscape and
Go Back iPlanet servers, Oreilly Website Pro server, Caudium, Xitami, Omni-
HTTPd, and many others.
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13. Home Page What can PHP do?
Title Page
• Server-side scripting.
• Command line scripting.
• Writing client-side GUI applications: PHP-Gtk
• Text processing features such as PCRE’s, XML documents, XSLT
Page 13 of 39 transformation.
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• Abilities also included generating images, PDF files and even Flash
movies, on the fly.
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14. External services
Home Page
Title Page
• Database connectivity
– A wide range of databases - MySQL, PostgreSQL, Informix,
ODBC, Oracle ... too many more to list.
– DBX and ODBC interfaces, that allow scripting independent of
the database backends.
Page 14 of 39 • Network services such as IMAP, POP, SMTP, DNS, LDAP, SNMP
etc. as well as raw TCP sockets!
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• Support for instantiating Java objects, remote CORBA objects, and
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COM on windows.
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15. PHP on the Web
Home Page
PHP can be directly embedded in HTML markup.
Title Page
<html>
<head>
<title>Hello World!</title>
</head>
<body>
Page 15 of 39 <?php
echo "Hi, I’m a PHP script!";
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Full Screen </body>
</html>
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16. Home Page
PHP on the Web (continued)
Title Page <html>
<head>
<title>Hello World!</title>
</head>
<body>
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Hi, I’m a PHP script!
</body>
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</html>
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17. Home Page
Language features
Title Page
• Variables - pre-defined, external, user-defined, variable variables, ref-
erences.
• Standard data-types such as booleans, integers, floating point num-
bers, strings and arrays.
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• Control structures - if-then-else while, do-while, switch, foreach.
Go Back • Functions - user-defined functions similar to C, variable functions.
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18. Variables in PHP
Home Page Variable variables!
$foo = "bar";
Title Page $$foo = "value";
The result is that the variable $bbar, gets the value value.
References
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<?php
$foo = ’Bob’;
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$bar = "My name is $bar";
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echo $foo;
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?>
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19. Arrays
$a = array( 1 => ’one’,
Home Page 2 => ’two’,
3 =>’three’ );
Title Page $a[1] = ’one’;
$a[2] = ’two’;
$a[3] = ’three’;
$a[] = ’four’;
$a = array( ’color’ => ’red’
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, ’taste’ => ’sweet’
, ’shape’ => ’round’
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, ’name’ => ’apple’
, 4
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);
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$a[] = ’four’;
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20. Home Page Arrays functions
unset ($a[’color’]);
Title Page
reset ($a);
while (list($key, $value) = each ($a)) {
echo "Key: $key; Value: $value<br>n";
}
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foreach ($a as $key => $value) {
Go Back echo "Key: $key; Value: $value<br>n";
}
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21. Functions
<?php
function foo()
Home Page {
echo "In foo()<br>n";
Title Page }
function bar($arg = ’’)
{
echo "In bar(), with ’$arg’.<br>n";
}
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foo();
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$func = ’foo’; $func();
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bar(’test’);
$func = ’bar’; $func(’test’);
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?>
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22. OOP in PHP
<?php
class Cart
Home Page {
var $items;
Title Page ...
function add_item ($artnr, $num) { ... }
function remove_item ($artnr, $num) { ... }
}
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$cart = new Cart;
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$cart->add_item("10", 1);
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$another_cart = new Cart;
$another_cart->add_item("0815", 3);
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23. HTML Forms
<form action="foo.php" method="post">
Name: <input type="text" name="username"><br>
Home Page Email: <input type="text" name="email"><br>
<input type="submit" name="submit">
Title Page </form>
<?php
print $_POST[’username’];
print $_REQUEST[’username’];
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// g, p and c type variables:
import_request_variables(’p’, ’p_’);
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print $p_username;
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print $HTTP_POST_VARS[’username’];
print $username;
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24. Home Page
Session handling
Title Page
• A way to preserve certain data across subsequent accesses.
• A visitor accessing your web site is assigned a unique session id,
which is used in two ways.
• Cookies that are stored on the client, to be read on subsequent ac-
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cesses.
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25. Home Page
Session example
<?php
Title Page session_register ("count");
$count++;
?>
Hello visitor, you have seen this page
<?php echo $count; ?> times.<p>
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To continue,
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<A HREF="nextpage.php?<?=SID?>">
click here</A>
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26. Cookies
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• A mechanism for storing data in the client.
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• Any cookies sent from the client will automatically be turned into a
PHP variable.
setcookie ("cookie[three]", "cookiethree");
setcookie ("cookie[two]", "cookietwo");
setcookie ("cookie[one]", "cookieone");
Page 26 of 39 if (isset ($cookie)) {
while(list ($name, $value) = each($cookie)) {
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}
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}
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27. Home Page
Title Page
MySQL
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28. Home Page
What is it?
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• The most popular Open Source SQL database.
• Developed, distributed and supported by MySQL AB.
• Several different client programs, libraries and administrative tools..
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• A wide range of programming interfaces (APIs).
• Works on a wide range of operating systems including Windows,
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Unix variants, Mac OS X, etc.
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29. Installation
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• Installation on Red Hat Linux is a breeze, using rpms for mysql,
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mysql-server and mysqlclient.
• Control script - /etc/init.d/mysqld.
• Users on the server are distinct from those on the system.
• The user accounts and database details are stored in a database called
Page 29 of 39 mysql.
• All other users are created and controlled by the mysql root.
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• Users can create databases, tables, other users, etc depending on priv-
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30. Using the mysql client
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Use mysql to connect to a MySQL server.
shell> mysql -h host -u user -p
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shell> mysql -h host -u user -p < batch-file
Configuration files
/etc/my.cnf Global options
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DATADIR/my.cnf Server-specific options
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defaults-extra-file The file specified with –defaults-extra-file=#
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31. User administration
Home Page
shell> mysql -u root mysql
mysql> SET PASSWORD FOR
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-> root@localhost=PASSWORD(’new_password’);
shell> mysqladmin -u root password new_password
mysql> GRANT ALL PRIVILEGES ON *.* TO monty@localhost
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-> IDENTIFIED BY ’some_pass’ WITH GRANT OPTION;
mysql> GRANT ALL PRIVILEGES ON foo.* TO bar@"%"
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-> IDENTIFIED BY ’some_pass’;
mysql> GRANT USAGE ON *.* TO simpleton@some.server
Full Screen -> IDENTIFIED BY ’some_pass’;
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32. Home Page
Title Page
MySQL Privilege System
Managed by tables in the database called mysql.
user global privileges of each user.
db which user can access which database from which host.
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host extension to db for multiple hosts.
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33. Home Page Data, Databases and Tables
Title Page
• SQL - Structured Query Language
• Queries such as create, delete, select, update, insert, etc.
• Numeric Datatypes - INT, BIGINT, TINYINT, FLOAT, DECIMAL,
etc
Page 33 of 39 • String Datatypes - CHAR, VARCHAR, TEXT, BLOB
• ENUM and SET - “one”, “two”, “three”
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• DATETIME, DATE, TIMESTAMP
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34. MySQL databases
mysql> SHOW DATABASES;
Home Page +----------+
| Database |
Title Page +----------+
| mysql |
| test |
| tmp |
+----------+
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mysql> CREATE DATABASE menagerie;
mysql> USE menagerie
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Database changed
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mysql> SHOW TABLES;
Empty set (0.00 sec)
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35. Home Page
Title Page
Putting it together
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36. Home Page
Resources
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The resources listed here are usually installed on the system, under
/usr/share/doc/
• The Apache Manual http://httpd.apache.org/
• The PHP Manual http://www.php.net/manual/en/
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• The MySQL Manual
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http://www.mysql.com/documentation/
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37. Home Page
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RTFM
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38. Home Page
Title Page
Thanks..
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39. Home Page
Title Page
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