Which, if you remember, exists so it can return it to the client. So if you write index.html it means /var/inside the root folder. Every filename after this directive will refer to this path. The root directive defines the root folder of the given site. So with contexts we can describe the "hierarchy" of things: Inside the server context we can have location context (but we don't have right now) which refers to specific URLs on this site. So if we have 10 sites on this server each will log to the /var/log/nginx/access.log file which is obviously not good, but it's okay for now.Īnother context is server which refers to one specific site. They define a scope where we can configure scope-related things. http, server, location, and events are the contexts in this config. In an nginx config there are two important terms, context, and directive:Ĭontext is similar to a "scope" in a programming language. This is not a production config! It's only for demo purposes. If you want super fast speed for your web application, you must consider programming in a compiled language like C.# `events` is not important right now. What is the one main disadvantage of using Perl for CGI programming?Īns: Some web applications are meant for only speed. Perl has rich functionality for pattern matching.Perl decently manages strings by the mechanism of memory allocation and deallocation.Perl is quite a good choice for doing socket programming.No compilation is needed to perform each task. As Perl is interpreted language, you can easily do debugging while programming CGI.
Why do Programmers prefer to use Perl language for CGI?Īns: There are many reasons behind the use of Perl language for CGI but we will discuss some important points: Java defines the clear separation between presentation and business logic. No provision for separation between the presentation and business logic. Java is having its own standard APIs to, run the programs on web servers.
The protocol used to run programs on web servers. Q10. Is there any difference between the CGI script and Java? Q9. How does the form data get accessed in GET, and in what form?Īns: As a continuous stream of bytes from standard input, the number of bytes is stored in the content length environment variable. Interpreted language produces the result from programĬompiler produces a program written in assembly language
#Cgi stands for in networking code#
List out the differences between an interpreted language and a compiled language.Īn interpreted language is parsed, interpreted and executed each time on run.įirst source code is compiled, then executed. Q7. What is the function of the UNIX command “finger”?Īns: “finger” command is used to display the following information: Q6. How do the CGI scripts know that the form data received has been URL encoded?Īns: CONTENT_TYPE environment variable. While in the POST method, parameters are not stored in browser history and server logs. Hence, browser history and logs are stored in plaintext. Why is the POST method more secure as compared to the GET method?Īns: In the GET method, data is sent as part of the URL. How does the form data get accessed in POST?Īns: As a continuous stream of bytes from standard input, the number of bytes is stored in the content length environment variable. Q3. What does the REQUEST_METHOD environment variable specify?Īns: It specifies whether we are using the GET or the POST method to send data to the server. Q2. Which computer language is generally used to write CGI scripts?Īns: Remember the fact that CGI scripts can be written in any language. But CGI scripts are generally written in the: Reside in a special directory in the webserver, typically “cgi-bin”.CGI scripts can be written in any language.It helps in creating interactive web pages dynamically based on inputs provided by the user.It is a program that runs on a web server.CGI stands for Common Gateway Interface.CGI Scripts Interview Questions & Answers Q1. Below I am listing interview questions and answers on CGI scripts that may be asked in company interviews. CGI is an acronym, and it stands for Common Gateway Interface.
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