APACHE Q & A PAGE -1

             APACHE INTERVIEW QUESTIONS AND ANSWERS 

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1..What is apache server?

The Apache HTTP Server, colloquially called Apache  is the world's most used web server software.. Apache played a key role in the initial growth of the World Wide Web quickly overtaking NCSA HTTPd as the dominant HTTPserver, and has remained most popular since April 1996. In 2009, it became the first web server software to serve more than 100 million websites

2..How to compile apache?

Compiling Apache consists of three steps: Firstly select which Apache modules you want to include into the server. Secondly create a configuration for your operating system. Thirdly compile the executable.

All configuration of Apache is performed in the src directory of the Apache distribution. Change into this directory.

1.    Select modules to compile into Apache in the Configuration file. Uncomment lines corresponding to those optional modules you wish to include  or add new lines corresponding to additional modules you have downloaded or written.

2.    Configure Apache for your operating system. Normally you can just type run the Configure script

3.    Type make. The modules we place in the Apache distribution are the ones we have tested and are used regularly by various members of the Apache development group.

3..How to check the version of Apache server ?

rpm -qa |grep httpd

4..What is mod_ssl?

This module provides strong cryptography for the Apache 1.3 webserver via the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols by the help of the Open Source SSL/TLS toolkit OpenSSL

5..What is mod_perl?

With mod_perl it is possible to write Apache modules entirely in Perl. In addition, the persistent interpreter embedded in the server avoids the overhead of starting an external interpreter and the penalty of Perl start-up time.

6..How to start and stop the apache server?

To start the server, simply run httpd. This will look for httpd.conf in the location compiled into the code (by default /usr/local/apache/conf/httpd.conf).

To stop Apache send the parent process a TERM signal. The PID of this process is written to the file httpd.pid in the logs directory (unless configured otherwise). Do not attempt to kill the child processes because they will be renewed by the parent. A typical command to stop the server is:

    kill –TERM `cat /usr/local/apache/logs/httpd.pid`

7..What is the main configuration file for Apache?

httpd.conf

8..How to check the  Apache server version?

rpm -qa |grep httpd

9..Write the  Apache server  supporting ports?

http – port 80
https – port 443

10..How to host  more than  one web site if you are having only one IP address?

We  can  used  name based virtual hosting.

ServerName 10.111.203.25
NameVirtualHost *:80

<VirtualHost *:80>
ServerName web1.test.com
DocumentRoot /var/www/html/web1
</VirtualHost>

<VirtualHost *:80>
ServerName web2.test2.com
DocumentRoot /var/www/html/web2
</VirtualHost>