Rocky,
Sorry about the delay in getting back to you on this. You were right. I
was uploading the scripts in binary! I started using Dreamweaver and found
out that if I didn't define the file extensions in one of my configuration
files, they would default to binary during the upload, instead of staying
ASCII. I never realized that this could happen. THANK YOU for the help!
I've been racking my brain for a long time on this (see subject again).
Now, I've gone back to lots of scripts that didn't work before and am able
to get them running flawlessly. I'm a happy camper now!!!!
I can not express how happy I am with the service that I've received from
YOA. If you ever would like any kind of reference or testimonial, I would
be pleased to comment on your superior service. "Above and beyond" would
be
an understatement! Also, I want to thank you for the calendar script. It
was just what I was looking for!
barry@hometownlinx.com
CGI stands for "Common Gateway Inferface," a fancy name meaning computer programs running on the webserver that can be invoked from a www page at the browser. The "bin" part alludes to the binary executables that result from compiled or assembled programs. It is a bit misleading because cgi's can also be Unix shell scripts or interpreted languages like Perl. CGI scripts need to be saved in ASCII format and uploaded to your server's cgi-bin in ASCII or text format. This is very important.
We don't provide free support for CGI scripts which we did not install
on your server. So if you are not already familiar with CGI scripting, you may want to
read a book on the subject or find places on the Internet with CGI scripting information.
There are many good resources for CGI scripts found on the web. The scripts at Matt's
Script Archive found at http://www.worldwidemart.com/scripts/ are very good. Many of
our scripts come from here. Another excellent resource is The CGI Resource Index
found at http://www.cgi-perl.com/ -- if you are not an expert, look for scripts that are
very well documented and come with step-by-step instructions, or contact us for help or
installation.
Put your cgi-bin scripts in the www subdirectory named "cgi-bin". If you have given full POP/FTP/Telnet accounts to other people, each of them will have their own separate cgi-bin inside the main cgi-bin. When they login with their username and password, they will only have access to their own cgi-bin.
Paths to Date, Mail, Perl, etc.
Here are your paths to the common server resources that CGI scripts often require:
| Sendmail: | /usr/sbin/sendmail |
| Perl5.003: | /usr/bin/perl |
| Perl5.004: | /usr/bin/perl5.004 |
| Date: | /bin/date |
| Java: | /usr/local/java/bin/java |
| Python: | /usr/bin/python |
| Domain path: | /www/yourdomain |
| (puts you in your web directory) | |
| Cgi-bin path: | /www/yourdomain/cgi-bin |
| (puts you in your cgi-bin) |
Look at the window in your FTP or Telnet client to see whether your site resides on /home/ or /home2/.
The following is a simple explanation of file permissions in Unix. To list the access permissions of a file or directory, telnet to your server, then:
cd directoryname
to change the directory until you are either in the directory above the file you are interested in, or above the directory you are checking.
Type: ls -l filename
and you will see what the current permission settings are for that file, along with a bunch of other stuff.
Examples of using chmod:
| PEOPLE | PERMISSIONS |
| u = the file's user (you) | r = read access |
| g = the file's group | x = execute access |
| o = others | w = write access |
| a = the user, the group, and others |
To change permissions for a file named filename.cgi, you need to chmod
the file (change mode). For example, when you type this:
chmod u=rwx,g=rx,o=rx filename.cgi
you've given:
read, execute, and write access to the user (that's you)
read and execute access to the group and
read and execute access to others
Some scripts will tell you to chmod 775 (for example). Doing the above is the same thing as typing chmod 775. You can use either method with our Unix servers. Let me explain:
When using the numeric system, the code for permissions is as follows:
r = 4 w = 2 x = 1 rwx = 7
The first 7 of our chmod775 tells Unix to change the user's permissions
to rxw (because r=4 + w=2 + x=1 adds up to 7. The second 7 applies to the group, and the
last number 5, refers to others (4+1=5).
When doing an ls -l on the file, telnet always shows the permissions this way:
-rwxr-xr-x
Ignore the first dash, then break up the above into three groups of letters. If there's a dash where a letter should be, it means that there is no permission for those people.
Remember: the first 3 apply to user, the second 3 apply to group, and the third 3 apply to others.
Some FTP clients support changing permissions in a more graphical way.
If you have Fetch for the Mac, you have an easy way to change permissions. Go to the file
you want to change the permissions on, and highlight it. Under the Remote menu, select
Change Permissions. A window will pop up showing the current permissions for the file you
had highlighted, as in Figure 3A below. Click on the boxes to change permissions as
needed.

Figure 3A
WS_FTP accomplishes the same task as above. Just highlight the file you
want to check, and right-click on it. A menu will pop up, then select CHMOD. You will see
the window below, as in Figure 3B.

Figure 3B
Appendix
Permission Settings for the scripts provided
| Normal Site | Frontpage Site |
Troubleshooting CGI-bin Problems
Below are solutions to some of the more common CGI script problems, in
question and answer format.
When I activate my CGI program, I get back a page that says
"Internal Server Error. The server encountered an internal error or misconfiguration
and was unable to complete your request."
This is generally caused by a problem within the script. Log in via
Telnet and test your script in local mode to get a better idea of what the problem is. To
do this, go into the directory in which your script is located, then execute the script.
To execute the script, you can do it by two ways:
1) Type "perl myscript.pl" (Perl being the language interpreter in this case).
2) Or simply type "myscript.pl" alone, that will work if the
first line is well written to indicate the location of Perl.
The first one is useful to see if there's any error IN your script. The
second one is useful to test if your "calling line" (the first line of the
script) is okay, i.e. if you entered the right location of Perl.
I am being told "File Not Found," or "No Such File
or Directory."
Upload your Perl or CGI script in ASCII mode, not binary mode.
When I test my Perl script in local mode (by Telnet), I have the
following error: "Literal @domain now requires backslash at myscript.pl line 3,
within string. Execution of myscript.pl aborted due to compilation errors."
This is caused by a misinterpretation by Perl. You see, the
"@" sign has a special meaning in Perl; it identifies an array (a table of
elements). Since it cannot find the array named domain, it generates an error. You should
place a backslash (\) before the "@" symbol to tell Perl to see it as a regular
symbol, as in an email address.
I am getting the message "POST not implemented."
You are probably using the wrong reference for cgiemail. Use the
reference /cgi-bin/cgiemail/mail.txt. Another possibility is that you are pointing to a
cgi-bin script that you have not put in your cgi-bin directory. In general, this message
really means that the web server is not recognizing the cgi-bin script you are calling as
a program. It thinks it is a regular text file.
It's saying I don't have permission to access /
This error message means that you are missing your index.htm file. Note that files that start with a "." are hidden files. To see them, type ls -al. If you wish to FTP this file in, go to the home/yourdomain directory.
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