Tagged: http

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How To Redirect Http To Https In Apache and Nginx

Http is popular protocol used to transfer web page data like HTML, Javascript, Image etc. HTTP is used between our browser like Chrome, Firefox, Edge, Internet Explorer and server like Apache, Nginx etc. HTTPS is secure version of HTTP and recently sites transition to the HTTPS. But what is a...

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What Is “server_name” in Nginx Web Server Configuration?

Nginx web server provides a lot of different configuration about the web service. Some of the configurations are used very often. server_nameis one of them which can be miss interpreted. Single Domain Name In the old days internet was so little. There was less site and domain names than today....

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What Is HTTP Error 500 and How To Solve It?

Http is worlds most popular protocol used in the internet to exchange data and run web applications. Http protocol also have standards. Http is stateless protocol which means separate Http request do  not have any connection with eash other. Http have mechanism to provide information about request which is called...

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Curl Post Data From Terminal with Examples

curl is useful tool used to create HTTP, HTTPS, FTP, … and similar protocol request from command line. This provides us the ability to simulate web browser behavior or similar application logic without a GUI. In this tutorial we will look different use cases for curl POST and JSON. For more information...

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How To Specify Host, Port and Protocol For Tcpdump?

Tcpdump is everyday tool used by system and network administrator. We generally look simple use cases like host, port and protocol filter for tcpdump . In this tutorial we will look how to filter host, port and protocol in tcpdump. But keep in mind that tcpdump will requires administrator or root...

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Understanding and Configuring Apache Access Log

Web servers logs provides a lot of information about the web application and user . Apache is very popular web server used by millions of web sites. Apache provides different types of logs like access , error etc. In this tutorial we will look how access log configured and try to understand...

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Tcp and Udp Port List, Names and Usage Frequency

Nmap tool provides popular ports list as a database where this list is also used in network and service scans. Here is the list but before we will look the command which will list ports according to the popularity. Nmap Top Ports Listing We can use sort command in order to...

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What Is TCP/IP Model?

Internet started long days ago. But in the first years it was not popular as today. From technical perspective there are some difficulties which prevents the expansion of the internet. There was a lot of protocols those are incompatible each other and the TCP and IP protocols are standardized. TCP/IP...

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