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Remove Apache Version and OS Identity from Error Pages

Hello readers, today I guide you to "Remove Apache Version and OS Identity from Error Pages".   At the time you install Apache on your server, it displays the version of your web server installed on your server along with the...

Install MongoDB Community Edition on Ubuntu 14.04 LTS and resolving issue unable to locate package mongodb-org

In this blog, we will learn how to install MongoDB Community Edition on Ubuntu 14.04 LTS Linux systems. Before installing MongoDB check which version you are going to install. Let us say that I have Ubuntu 14.04 with OS type 32-bit and I want to ...

Explained basic “cat” command and it's options with examples in Linux

This blog depicts basic commands that will help a user to learn different cat command options.Here we will learn about different options of the “cat” command in Linux, “cat” is an acronym for concatenate. We use this comma...

Creating file / writing in a file using command line interface

In this small blog we will learn how to create a file with different file extensions and how can we write some text or paragraph in the file? how to write content of one file to another file. We can also use cat command to append the binary data....

Explaination of HTTP Status Codes 5xx – Server Error

Here we will learn about the server errors that are received by the client under different situations. The HTTP status or error codes which belong to 5xx series come frequently in the web browser. The status codes are returned by the web serve...

Explaining HTTP Status Code 3xx Series

As know that all the web servers respond with HTTP status code in the first line of the response, which indicates the status of the server for the request from the client. HTTP 3xx series status codes indicate that for accessing a particular reso...

Explaining Status Code Meaning For HTTP 2xx Series Which Indicates Success Message

In this blog we will learn what is the success situation under HTTP 2xx series (i.e. displaying success message in different situations).HTTP 2xx series status code in the server response indicates that the request from the client is received and...

HTTP 1xx Series Status Codes Indicating Informational Message

Here we will learn what is the meaning of all the status code that come under the 1xx series (i.e. indicating informational message in different situations). HTTP 1xx series status code are as an acknowledgement to the client. With the help of...

Explanation about HTTP Status Codes and HTTP Error

In this blog we will learn about the HTTP status code and error code. When an HTTP request is send by the client sends the server receives an appropriate response. For understanding the response properly, we will always find a three digit HTTP st...

About HTTP and HTTP request and response structure.

In this blog we will learn about what is HTTP , HTTP Request structure at the client side and HTTP Response structure at the server side. HTTP (HyperText Transfer Protocol): Data communication in the internet is done on the basis of this pr...

How to install VIM (text editor) editor in Ubuntu

In this tutorial we will learn about installing vim text editor in Ubuntu. This article is about how to install vim editor in Ubuntu? VIM is clone to vi editor but vim text editor is cross platforms software. VIM is a text editor and widely us...

How to setup Virtual Domain Name on apache2 Ubantu

Step 1 :- Create new project like /var/www/html/staging/blog Step 2:- create index.php  Step 3:- Write <?php echo “Hello World”; ?> inside index.php Step 4:- Check If you can access project via http://localhost/staging/b...

How to serach php.ini location

Hello friends, This is very important to search a file in Ubantu server like my location in the server is "var/www/html/myproject" and I want to make some changes in my php.ini file but I don't know the location of php.ini file. ...

Some basic linux interview questions

Below are some linux basic questions which are generally asked by the interviewer. Question1: what we must check first if we get, “can’t connect to local MySQL server through socket ‘/var/mysql/mysql.sock’” on typing at shell prompt “mysql...

10 Useful questions related to Squid

Below are some sought-after interview questions asked, related to Squid Question1: What is Squid? Answer: Squid is an Application software that works as a proxy server as well as web cache Daemon. Squid Protocols such as FTP, HTTP, HTTPS, ...

What is WHM(Web Hosting Manager)

It is a web-based tool that is used by the server administrators to manage hosting accounts on a web server. Ports 2086 and 2087 are used for WHM.Some of the tasks that a Server administrator performs on WHM are as bellow: 1- It is accessible...

How to Redirect a Website or URL in htaccess Method

htaccess File method: Any website running on Apache server you can use htaccess file method also called as Apache redirects. Important point is that it will work only on Linux servers with the mod_rewrite enabled.   Now question is...

Is there a practical HTTP Header length limit

All the limits are configurable but not fixed by the HTTP protocol and vary from platform to platform (i.e. web-servers). Tomcat : maxHttpHeaderSize=>We can specify the max size of the request/response HTTP header in bytes, by defaul...

RewriteRule that preserves GET parameters

In case of using simple RewriteRule directive our URL changes with the query string as well but if we want to use the existing GET parameters along with the new parameters appended we should use the flag [QSA].Using flag [QSA] appends the new que...

How to disable Apache gzip compression for some media files in .htaccess file

This tutorial will help user learn how to disable the compression of files.This can be done by disabling apache gzip. For example let us say that we want to disable compression for mp3 files, which a client get as a response by hitting a particul...

Restrict access to directories through ip address on Apache

Apache web server allows access based upon different conditions. For example we can restrict access to url http://firstexample.com/ (mapped to /var/www/public/images directory) from 192.165.1.0/24 network. Apache provides access based on diffe...

PHP.Ini setting to allow large files upload

For configuring the size of “upload file, post, memory” in an application developed in php we need to do the following changes in the file “php.ini”. The path where we can find the “php.in” is below: 1-> Debian/ Ubuntu : { /etc/php5/apa...

Configure apache to listen on port other than 80

For enabling server to listen on different ports we can make the changes in file “port.conf” in Debian/Ubuntu based linux server. The path where we can find the “ports.conf” file is below: 1-> Debian/ Ubuntu : { /etc/apache2/ports.conf ...

Installing mod_jk on Apache on Ubuntu

This tutorial will help a user to learn how to install mod_jk module and what is mod_jk.mod_jk is basically Apache module which is used to connect the “Servlet Container” [also known as “Web Container”] with the “Web Servers” (i.e. Apache, iPlane...

How does KeepAlive setting in Apache 2.4 help

Keep-Alive is a Directive in Apache that is used to maintain a persistent connection between client and server, which prevents a connection from breaking. It is also known as HTTP keep-alive, When we put KeepAlive Directive "on" it the allows sam...

Installing PHP module on Apache2

One can install PHP with apache2 in two ways, either by compiling from source code or from repositories by using a package manager. Both ways are discussed below. Installing from repositories : This is very simple and straight forward method ...

Installing SSL certificate on apache2

SSL or Secure Socket Layer ascertains that all data passed between the web server and the web browser remain private and secure. It is the standard security technology for engendering an encrypted connection between a web server and a web browser...

Compression in Apache and improving page speed

Apache provides mod_deflate module to compress the response prior to sending it to client by attaching the DEFLATE output filter in filter chain. Following is a simple sample configuration for compressing selected text-based content types : ...

Filters in Apache

Filters are used for preliminary processing of incoming data, and post-processing of outgoing data. Apache implements Filters only in Apache 2.0, higher by a filter chain which alters the traditional request processing phases. Although numerous f...

Write and Read Excel Sheet Using Apache POI API

The Apache POI API is used to work with Excel files in java. By using Apache POI you can easily read and write the Records and data to Excel files. Here the below code can used to read and write the data in Excel files. import java.io.File; ...

How to create custom error pages in Apache

This tutorial will help us in learning how to create error pages in apache. We can customize the error pages based on different error codes that is writen in Apache server's Directive “ErrorDocument ” Follwoing are the “Three digit error code”: ...

Caching in Apache

Caching is an important feature to improve the performance of Apache server. By creating the caching rules effectively, we can conserve a good amount of resources and the content access by the user is significantly fast. Apache offers several met...

Basic Authentication with Apache

Sometimes we have some sensitive information on our website or an information which is intended for only a small group of people, we need a way to authenticate the users visiting that particular information. Authentication is any process by whic...

Solr schema unique key id

Solr schema.xml have a default unique key which is "id". This field has "string" type hence can not be used for sorting. We can not change its type as it is required as "string" because if you have enabled the QueryElevationComponent in solrconf...

Setting up varnish with Apache

Before we begin with the setup of the varnish with Apache, let us know a bit about Varnish and then move ahead with configuration of varnish with apache with some examples that gives you an idea of basic settings for the server. Varnish is an ...

Rewrite rules to create user friendly URLS

Rewrite Rule is a directive used in .htaccess file to control the routing of the pages in a webservice, webresource or webapplication and this technique is called URL rewriting. Apache HTTP Server provides the URL rewritting technique via mod...

How to configure apache server using ".htaccess" file ?

Using “.htaccess” file to provide a directory level configuration in apache such as displaying customized error pages, Redirecting the user from old directory to new directory, authentication system , denying /allowing users from specific IP . ...

Proxy Load Balancer settings for apache

Apache server has been most popular web server to host sites and has loads of modules that can be used for the special cases. We once came across a scenario where the IP for the live application was to be changed but that would need the app to...

Virtual Hosting - Host Multiple Sites on Single Server

Virtual Hosting is a process in which we can host multiple sites on a single server. or we can also say single Apache to have multiple sites. Types of Virtual Hosting Virtual hosting is of two types- 1. Name Based 2. IP Based Na...
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