Now call http://localhost/cgi-bin/test.cgi or
http://www.example.com/cgi-bin/test.cgi. You should see the “CGI/1.0
test script report”.
20.5.3 CGI Troubleshooting
If you do not see the output of the test program but an error message instead, check the
following:
CGI Troubleshooting
• Have you reloaded the server after having changed the conguration? Check with
rcapache2 probe.
• If you have congured your custom CGI directory, is it congured properly? If in
doubt, try the script within the default CGI directory /srv/www/cgi-bin/ and
call it with http://localhost/cgi-bin/test.cgi.
•
Are the le permissions correct? Change into the CGI directory and execute ls -l
test.cgi. Its output should start with
-rwxr-xr-x 1 root root
• Make sure that the script does not contain programming errors. If you have not
changed test.cgi, this should not be the case, but if you are using your own pro-
grams, always make sure that they do not contain programming errors.
20.6 Setting Up a Secure Web Server
with SSL
Whenever sensitive data, such as credit card information, is transferred between Web
server and client, it is desirable to have a secure, encrypted connection with authentica-
tion. mod_ssl provides strong encryption using the secure sockets layer (SSL) and
transport layer security (TLS) protocols for HTTP communication between a client and
the Web server. Using SSL/TSL, a private connection between Web server and client
The Apache HTTP Server 389
