cgi

前端工程师在理解Nginx之后，就能更好的与后端工程师沟通，为了能提高工作效率，这两天抽空读了《 Nginx高性能Web服务器实战教程 》。 一、Nginx Nginx 是一款高性能的Web服务器软件，主要用于提供网上信息浏览服务，为高并发网站的应用场景而设计，可以在Linux、macOS和Windows等操作系统中运行，它的优点包括性能高、稳定性好、结构模块化、配置简单以及资源消耗非常低等。拥有HTTPS访问、gzip压缩、虚拟主机和URL重写等功能，不但可以搭配FastCGI程序处理动态请求，还可以用于代理、反向代理、负载均衡和缓存服务器等功能。P2 1 ）进程和访问控制 Nginx由一个主进程和多个工作进程组成，主进程接收客户端请求，再转交给工作进程处理，从而很好地利用多核心CPU的计算能力。P89 Nginx的访问控制是网络安全防范和保护的主要策略，其任务是保证网络资源不被非法访问。P93 2 ）日志记录功能 Nginx提供了一个非常灵活的日志记录功能，它可以使每个块的配置拥有各自独立的日志进行记录，并且根据记录内容的不同又分为访问日志和错误日志。P101 （1）访问日志用于记录客户端访问Nginx的每一个请求。记录用户的IP、访问时间、请求方式、响应状态、地域来源、跳转来源、使用终端等信息。 （2）错误日志记录在访问Nginx时出错的记录，可以查看某个服务的性能瓶颈。 3

I'm writing a python CGI script that will query a MySQL database. I'm using the MySQLdb module. Since the database will be queryed repeatedly, I wrote this function.... def getDatabaseResult(sqlQuery,connectioninfohere): # connect to the database vDatabase = MySQLdb.connect(connectioninfohere) # create a cursor, execute and SQL statement and get the result as a tuple cursor = vDatabase.cursor() try: cursor.execute(sqlQuery) except: cursor.close() return None result = cursor.fetchall() cursor.close() return result My question is... Is this the best practice? Of should I reuse my cursor within

I am writing a Bulk Mail scheduler controlled from a Perl/CGI Application and would like to learn abut "good" ways to fork a CGI program to run a separate task? Should one do it at all? Or is it better to suffer the overhead of running a separate job-queue engine like Gearman or TheSchwartz as has been suggested recently . Does the answer/perspective change when using an near-MVC framework like CGI::Application over vanilla CGI.pm? The last comes from a possible project that I have in mind for a CGI::Application Plugin - that would make "forking" a process relatively simple to call. Look at

I'm putting together a small web app that writes to a database (Perl CGI & MySQL). The CGI script takes some info from a form and writes it to a database. I notice, however, that if I hit 'Reload' or 'Back' on the web browser, it'll write the data to the database again. I don't want this. What is the best way to protect against the data being re-written in this case? Do not use GET requests to make modifications! Be RESTful ; use POST (or PUT) instead the browser should warn the user not to reload the request. Redirecting ( using HTTP redirection ) to a receipt page using a normal GET request

I'm trying to make a file uploader page that will prompt the user for a file and will upload while displaying progress. At the moment I've managed to make a simple HTML page that can calls my python script. The python script will then get the file and upload in 1000 byte chunks. I have two main problem (mainly due to be completely new to this): 1) I can't get the file size to calculate percentage 2) I don't know how to communicate between the server side python and whatever is in the page to update the progress status;presumably javascript. Am I going about everything the wrong way? Or is

How can I read the URL parameter in a Perl CGI program? ysth For GET requests , CGI parses the specified parameters and makes them available via the param() method. For POST requests , param() will return the parameters from the postdata, but any parameters specified via a query string in the URL itself are still available from the url_param() method. (This is can be helpful when a POST request is larger than $CGI::POST_MAX ; in that case, CGI just discards the postdata, but you can arrange to have query string parameters that identify what kind of request it was to provide a good error