Jamii: /* How to keep track of a page without anybody knowing ? */

2008-12-08T18:50:28Z

How to keep track of a page without anybody knowing ?

← Older revision		Revision as of 12:50, 8 December 2008
Line 31:		Line 31:

	==How to keep track of a page without anybody knowing ?==		==How to keep track of a page without anybody knowing ?==
	In the page you would like to monitor insert something like the following:		In the page you would like to monitor insert something like the following:
	< IMG SRC="/cgi-bin/nph-count?link=link_arg&show=NO">		< IMG SRC="/cgi-bin/nph-count?link=link_arg&show=NO">
	and on a different HTML-page where you would like the check the counter regularly:		and on a different HTML-page where you would like the check the counter regularly:
	< IMG SRC="/cgi-bin/nph-count?link=link_arg&increase=0">		< IMG SRC="/cgi-bin/nph-count?link=link_arg&increase=0">

Jamii: /* What to add in a HTML-page ? */

2008-12-08T18:50:03Z

What to add in a HTML-page ?

← Older revision		Revision as of 12:50, 8 December 2008
Line 25:		Line 25:

	==What to add in a HTML-page ?==		==What to add in a HTML-page ?==
	To activate a counter in a certain HTML-page add something like the following:		To activate a counter in a certain HTML-page add something like the following:
	< IMG SRC="/cgi-bin/nph-count?arg1=value1&arg2=value2&arg3=value3">		< IMG SRC="/cgi-bin/nph-count?arg1=value1&arg2=value2&arg3=value3">
	where arg1,2,3 are any of the supported arguments.		where arg1,2,3 are any of the supported arguments.
	NOTE: do not specify the debug argument inside a HTML-page.		NOTE: do not specify the debug argument inside a HTML-page.

Jamii: New page: ==Which arguments are accepted by the program ?== The following arguments are currently recognized: * width=number Specifies the number of digits in the resulti...

2008-12-08T18:49:22Z

New page: ==Which arguments are accepted by the program ?== The following arguments are currently recognized: * width=number Specifies the number of digits in the resulti...

New page

==Which arguments are accepted by the program ?==
The following arguments are currently recognized:
* width=number
Specifies the number of digits in the resulting image.
* link=URL of the page on which the counter is located
The link-argument is used to keep track of a certain counter.
It should be unique for each counter. A good choice is the URL of the page on
which the counter image is located.
* increase=number; default 1
Specifies the number by which the counter should be increased. This can be used to
check how many times a certain page was visited without increasing the counter.
In that case specify increase=0.
Resetting a certain counter is also possible this way by specifying a negative number here.
* show=NO
In case you would like to keep track of the number of accesses to a certain page without
showing the counter image, specify the above argument.
* debug=ON
The above is a special argument which can used to check the correct working of the software.
You should NOT specify this argument inside a HTML-page. Instead it should be used directly
by calling the nph-count program from the 'open URL' window, present in most WWW-browsers,
using something like the following:
http://localhost/cgi-bin/nph-count?link=dummy&debug=ON
This will return an on-line generated HTML-page giving information about possible problems
with the installed counter software.

==What to add in a HTML-page ?==
To activate a counter in a certain HTML-page add something like the following:
< IMG SRC="/cgi-bin/nph-count?arg1=value1&arg2=value2&arg3=value3">
where arg1,2,3 are any of the supported arguments.
NOTE: do not specify the debug argument inside a HTML-page.

==How to keep track of a page without anybody knowing ?==
In the page you would like to monitor insert something like the following:
< IMG SRC="/cgi-bin/nph-count?link=link_arg&show=NO">
and on a different HTML-page where you would like the check the counter regularly:
< IMG SRC="/cgi-bin/nph-count?link=link_arg&increase=0">

==How to reset a certain counter to zero ?==
If you would like to reset a counter to zero, check the counter value and the link argument you
used in a HTML-page and open the following URL directly (i.e. by typing it in, in the 'open URL' box):
http://localhost/cgi-bin/nph-count?link=link_arg&increase=-value
This will reset the counter to zero (note: the counter value can not go negative).

==Can people from the rest of the Internet (ab)use the counter ?==
The current version of the counter program doesn't have access control incorporated yet. This means that anyone could maintain a counter on your machine. However, this imposes no security problem for your machine. The next version of the package will have a possibility to restrict who is allowed to start a counter on your server.

==What's the size of the resulting output image ?==
The program will return a GIF-image of 20 pixels high and 15 * width pixels wide. This can used to your advantage by specifying the HEIGHT and WIDTH inside the HTML-page. By doing this, during retrieval of the page, the WWW-browser can allocate space for the image while displaying the remainder of the page.
Example:
< IMG SRC="/cgi-bin/nph-count?width=5&link=dummy" WIDTH=75 HEIGHT=20>

----
© Copyright, 1995. All rights reserved
Heini Withagen
W4 Consultancy
heini@w4.nl

WWW-access Hit Counter FAQ - Revision history

Jamii: /* How to keep track of a page without anybody knowing ? */

Jamii: /* What to add in a HTML-page ? */

Jamii: New page: ==Which arguments are accepted by the program ?== The following arguments are currently recognized: * width=number Specifies the number of digits in the resulti...