Assignment 5

WEB SERVERS, WEB SERVER APPLICATIONS, FTP, DNS and CHMOD

Web Servers are Computer Programs that are responsible for serving a web client with the information the client has requested. For instance, if a user wanted to get information from apple.com, the user would communicate to the server in HTTP (Hypertext Transfer Protocol, http, https, ftp, ftps...) by entering a URL (Uniform Resource Locator, a.k.a the webpage address) or click a hyperlink  and the server will return with a document, webpage, image etc. for the user.

Here's the video that helped me understand it more:
 

Web Application Servers basically takes a static HTML page (one that is built the same for everyone with no way for the user to customize it) and turns it into an active/dynamic page (one that allows customization and may be a different experience for each user). 

Check these links out for more on Application Servers:
Server vs Application Server and Static vs Dynamic

File Transfer Protocol (FTP) is a network protocol used to transfer data from one computer to another through the internet (or any other network as such). It is used for an FTP client to connect to and upload, exchange, edit and/or view files on an FTP server. It can be used to exchange files independent of the operating system involved ( you don't need just Windows or just Mac to use an FTP)

Check out this video on FTP: FTP for sexy geeks 

Domain Name System (DNS) is a naming system for computers, services or anything participating in the Intrnetz :) It associates various info with the domain names they are assigned. It translates the human language used for the name into binary identifiers to locate and address the devices world-wide. It works like a phone book, really.

Check out the wiki page on DNS:  Thanks Wiki :) 

Change Mode (CHMOD) is a shell command (programmer code for controlling programs/systems) in UNIX (an operating system) for file permissions. When executed, the command can change file system modes of files and directories.

Check out the wiki page on CHMOD: Thanks again Wiki!
 

   But what would the command really be used to change specifically ?