How to change tomcat port number

Tomcat by default runs on port number 8080, However there is high chance get a port conflict with others program. Sometime we just need to change the Tomcat port number.

Steps of changing the Tomcat Port

1) Locate server.xml in {Tomcat installation folder}\ conf \
2) Find following similar statement

 <!-- Define a non-SSL HTTP/1.1 Connector on port 8180 -->
    <Connector port="8080" maxHttpHeaderSize="8192"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" />

or

    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL HTTP/1.1 Connector on port 8080
    -->
    <Connector port="8080" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" />

3) About Tomcat’s server.xml file cites it’s runs on port 8080. Change the Connector port=”8080″ port to any other port number.
For example

 <Connector port="8181" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" />

Above statement instruct Tomcat server runs on port 8181.
4) Edit and save the server.xml file. Restart Tomcat. Done

Ref :- http://www.mkyong.com/tomcat/how-to-change-tomcat-default-port/

Apache Interview Questions

Q: – What is location of log files for Apache server ?
Ans- /var/log/httpd
Q: – What are the types of virtual hosts ?
Ans-
a. name-based
b. IP-based.

Name-based virtual host means that multiple names are running on each IP address.
IP-based virtual host means that a different IP address exists for each website served. Most configurations are named-based because it only requires one IP address.
Q: – Command to restart/start Apache web server ?
Ans- service httpd restart/start
Q: – Comamnd to check the version of Apache server ?
Ans- rpm -qa |grep httpd
Q: – What is meaning of “Listen” in httpd.conf file ?
Ans- Port number on which to listen for nonsecure (http) transfers.
Q: – What is Document Root ?
Ans- It is a location of files which are accessible by clients. By default, the Apache HTTP server in RedHat Enterprise Linux is configured to serve files from the /var/www/html/ directory.
Q: – Apache server works on which ports ?
Ans-
http – port 80
https – port 443
Q: – Tell me name of main configuration file of Apache server ?
Ans- httpd.conf
Q: – On which version of apache you have worked ?
Ans- httpd-2.2.3
Q: – What do you mean by a valid ServerName directive?
Ans- The DNS system is used to associate IP addresses with domain names. The value of ServerName is returned when the server generates a URL. If you are using a certain domain name, you must make sure that it is included in your DNS system and will be available to clients visiting your site.
Q: – What is the main difference between and sections?
Ans- Directory sections refer to file system objects; Location sections refer to elements in the address bar of the Web Page.
Q: – What is the difference between a restart and a graceful restart of a web server ?
Ans- During a normal restart, the server is stopped and then started, causing some requests to be lost. A graceful restart allows Apache children to continue to serve their current requests until they can be replaced with children running the new configuration.

-->
apachectl -k restart – for graceful restart
Q: – What is the use of mod_perl module ?
Ans- mod_perl scripting module to allow better Perl script performance and easy integration with the web server.
Q: – If you have added “loglevel Debug” in httpd.conf file, than what will happen ?
Ans- It will give you more information in the error log in order to debug a problem.
Q: – Is it possible to record the MAC (hardware) address of clients that access your server ?
Ans- No