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For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
Running CGI scripts in Apache Tomcat

CGI scripts are usually run under an httpd web server, but if you've only got a few CGIs and a lot of .jsp-s and servlets, you may want to run them under Tomcat instead. It can be done, but there are some configuration things to do first!

SAMPLE CGI SCRIPT

Here's a sample cgi script that you might want to install on your Tomcat server:

#!/usr/bin/perl

print "Content-type: text/html\n\n";

$now = localtime();
print "<h1>It is $now</h1>";

The file should be:
 * In a directory called WEB-INF/cgi in the webapp
 * have an extension .cgi
 * be set to be executable (chmod a+x xxxxxx)

If you want to vary the location and extension, you can do so by altering the text configuration quoted below.

CONFIGURING TOMCAT TO SUPPORT CGI

Although CGI support is shipped with the standard Tomcat load, the vital information that you'll need is commented out in the web.xml file and you need to uncomment the following to add in the support:

    <servlet>
        <servlet-name>cgi</servlet-name>
        <servlet-class>org.apache.catalina.servlets.CGIServlet</servlet-class>
        <init-param>
          <param-name>debug</param-name>
          <param-value>6</param-value>
        </init-param>
        <init-param>
          <param-name>cgiPathPrefix</param-name>
          <param-value>WEB-INF/cgi</param-value>
        </init-param>
         <load-on-startup>5</load-on-startup>
    </servlet>

and also you need to map appropriate URLs on to that support:

    <servlet-mapping>
        <servlet-name>cgi</servlet-name>
        <url-pattern>*.cgi</url-pattern>
    </servlet-mapping>

There's one further change to make - the CGI API is provided in a .jar file that you need to rename in the /usr/local/tomcat/server/lib (or similarly named) directory:

mv servlets-cgi.renametojar servlets-cgi.jar



See also Deploying applications under httpd and Tomcat

Please note that articles in this section of our web site were current and correct to the best of our ability when published, but by the nature of our business may go out of date quite quickly. The quoting of a price, contract term or any other information in this area of our website is NOT an offer to supply now on those terms - please check back via our main web site

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You'll find shorter technical items at The Horse's Mouth and delegate's questions answered at the Opentalk forum.

At Well House Consultants, we provide training courses on subjects such as Ruby, Lua, Perl, Python, Linux, C, C++, Tcl/Tk, Tomcat, PHP and MySQL. We're asked (and answer) many questions, and answers to those which are of general interest are published in this area of our site.

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