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PGP actually stands for "Pretty
Good Privacy". It allows for encryption
of text or data, and is generally used for secure
email transmissions. It allows people to exchange
email with both privacy and authentication.
You can download a copy for your
computer at the PGP web site,
www.pgp.com
.
Before using PGP to encrypt your
email, you will need to create what's called a "public
key" using your email software. Once you have
installed the PGP software on your computer, your
email software should have instructions to create
the key. For example, extra buttons appear in Outlook
Express once PGP is installed.
Once the key is created, you need
to upload it to your web account using the Control
Panel. First highlight your key and select "COPY" to
copy the key text to your clipboard. Then click
the PGP icon in your Control Panel and paste the
PGP Key text into the box provided and then click
add.
Make sure you take all the text
from the first dashes before "BEGIN" to
the last dashes after "BLOCK".
To remove an installed PGP key, scroll to the bottom of the PGP page and
select the key for removal.
You can also use this tool to send
an encrypted test message to make sure PGPMail
is working.
The system-wide PGPMail script is
basically the same as FormMail with the PGP encryption
feature added to it. To use PGPMail, you need to
create a form on your page.
The form action line should be:
<FORM ACTION = "/cgi-bin/pgpmail.pl" METHOD
= "POST">
The script will do all the programming
work for you. You alter the behavior of pgpmail
by using hidden fields in your form.
There are three form fields that
you must have in your form for PGPMail to work
correctly. This is the recipient, username, and
keyname fields.
Field:
recipient
Description:
This form field
allows you to specify to whom you wish for your
form results to be mailed. Most likely you will
want to configure this option as a hidden form
field with a value equal to that of your e-mail
address.
Syntax:
<input type=hidden
name="recipient" value="your_username@localnet.com">
Field:
username
Description:
This form field
allows you to specify your username in the system.
This allows PGPMail to look for the configuration
files to encrypt the mail to be sent to you. You
should replace "yourusername" with your
main username on the system.
Syntax:
<input type=hidden
name="username" value="yourusername">
Field:
keyname
Description:
This form field
allows you to specify the name of your public key.
This will be the public key that PGPMail uses to
encrypt your mail. You must possess the private
key in order to decrypt the email that is sent.
You can get your public key name by going to the
PGP Manager. It is typically just your email address.
Syntax:
<input type=hidden
name="keyname" value="publickeyname">
This section is quite long, and
goes over the various extra control you can use
with PGPMail. This inofrmation is also found right
on your Control Panel under the "PGPMail" icon.
Field:
subject
Description:
The subject field will allow
you to specify the subject that you wish to appear
in the e-mail that is sent to you after this
form has been filled out. If you do not have
this option turned on, then the script will default
to a message subject: WWW Form Submission
Syntax:
If you wish to choose what the subject is:
<input type=hidden name="subject" value="Your
Subject">
To allow the user to choose a subject:
<input type=text name="subject">
Field:
email
Description:
This form field will allow
the user to specify their return e-mail address.
If you want to be able to return e-mail to
your user, we strongly suggest that you include
this form field and allow them to fill it in.
This will be put into the From: field of the
message you receive. NOTE: in our opinion,
this should almost always be included, and
in fact it is required that you name the field
exactly as 'email' to get the benefit of the
feature.
Syntax:
<input type=text
name="email">
Field:
realname
Description:
The realname form field
will allow the user to input their real name.
This field is useful for identification purposes
and will also be put into the From: line of
your message header.
Syntax:
<input type=text
name="realname">
Field:
sort
Description:
This field allows you to
choose the order in which you wish for your
variables to appear in the e-mail that PGPMail
generates. You can choose to have the field
sorted alphabetically or specify a set order
in which you want the fields to appear in your
mail message. By leaving this field out, the
order will simply default to the order in which
the browsers sends the information to the script
(which isn't always the exact same order they
appeared in the form.) When sorting by a set
order of fields, you should include the phrase "order:" as
the first part of your value for the sort field,
and then follow that with the field names you
want to be listed in the e-mail message, separated
by commas.
Syntax:
To sort alphabetically:
<input type=hidden name="sort" value="alphabetic">
To sort by a set field order:
<input type=hidden name="sort" value="order:name1,name2,etc.">
Field:
redirect
Description:
If you wish to redirect
the user to a different URL, rather than having
them see the default response to the fill-out
form, you can use this hidden variable to send
them to a pre-made HTML page.
Syntax:
To choose the URL the user will
end up at:
<input type=hidden name="redirect" value="http://your.address/to/file.html">
To allow the user to specify a URL
he wishes to travel to once the form is filled
out:
<input type=text name="redirect">
Field:
required
Description: You can now require for certain fields in your form to be
filled in before the user can successfully submit the form. Simply
place all field names that you want to be mandatory into this field.
If the required fields are not filled in, the user will be notified
of what they need to fill in, and a link back to the form they just
submitted will be provided.
Syntax:
If you want to require that the
user fill in the email and phone fields in your
form, so that you can reach them once you have
received the mail, use a syntax like:
<input type=hidden name="required" value="email,phone">
Field:
env_report
Description:
Allows you to have Environment
variables included in the e-mail message you
receive after a user has filled out your form.
Useful if you wish to know what browser they
were using, what domain they were coming from
or any other attribute is associated with environment
variables.
The following is a short list of
valid environment variables that might be useful:
REMOTE_HOST - Sends the hostname
making a request.
REMOTE_ADDR - Sends the IP address of the remote host making the request.
HTTP_USER_AGENT - The browser the client is using to send the request.
General format:
software/version
library/version
Syntax:
If you wanted to find the remote
host and browser sending the request, you would
put the following into your form:
<input type=hidden name="env_report" value="REMOTE_HOST,HTTP_USER_AGENT">
Field:
title
Description:
This form field allows
you to specify the title and header that will
appear on the resulting page if you do not
specify a redirect URL.
Syntax:
If you wanted a title of 'Feedback
Form Results':
<input type=hidden name="title" value="Feedback
Form Results">
Field:
return_link_url
Description:
This field allows you to
specify a URL that will appear as return_link_title,
on the following report page. This field will
not be used if you have the redirect field
set, but it is useful if you allow the user
to receive the report on the following page,
but want to offer them a way to get back to
your main page.
Syntax:
<input type=hidden name="return_link_url" value="http://your.host.xxx/main.html">
Field:
return_link_title
Description:
This is the title that
will be used to link the user back to the page
you specify with return_link_url. The two fields
will be shown on the resulting form page as:
<ul> <li><a href="return_link_url">return_link_title</a> </ul>
Syntax:
<input type=hidden name="return_link_title" value="Back
to Main Page">
Field:
background
Description:
This form field allow you
to specify a background image that will appear
if you do not have the redirect field set.
This image will appear as the background to
the form results page.
Syntax:
<input type=hidden name="background" value="http://yourdomain.com/image.gif">
Field:
bgcolor
Description:
This form field allow you
to specify a bgcolor for the form results page
in much the way you specify a background image.
This field should not be set if the redirect
field is.
Syntax:
For a background color of White:
<input type=hidden name="bgcolor" value="#FFFFFF">
Field:
text_color
Description:
This field works in the
same way as bgcolor, except that it will change
the color of your text.
Syntax:
For a text color of Black:
<input type=hidden name="text_color" value="#000000">
Field:
link_color
Description:
Changes the color of links
on the resulting page. Works in the same way
as text_color. Should not be defined if redirect
is.
Syntax:
For a link color of Red:
<input type=hidden name="link_color" value="#FF0000">
Field:
vlink_color
Description:
Changes the color of visited
links on the resulting page. Works exactly
the same as link_color. Should not be set if
redirect is.
Syntax:
For a visited link color of Blue:
<input type=hidden name="vlink_color" value="#0000FF">
Field:
alink_color
Description:
Changes the color of active
links on the resulting page. Works exactly
the same as link_color. Should not be set if
redirect is.
Syntax:
For a visited link color of Blue:
<input type=hidden name="alink_color" value="#0000FF">
Any other form fields that appear
in your script will be mailed back to you and displayed
on the resulting page if you do not have the redirect
field set.
The International PGP site can be found at:
http://www.pgpi.org/
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