By default, a cookie's Domain becomes the hostname of the URI used to make the HTTP request in the first place. If you connect to a web server by IP address, and this web server sets a cookie without a Domain attribute, the cookie will be implicitly set with the Domain equal to the IP address of the web server.
You cannot specify an IP address in the Domain portion of the cookie. In the first place, it's useless in the case where the IP address matches the IP address in the URI. Secondly, IP addresses do not easily follow organizational boundaries in the way DNS domains do. An IP address with a number one less or one greater than the IP address of the web server may not necessarily reside in the same organization. For security reasons, then, any form of wild-carding of IP addresses in the Domain attribute of a cookie is not permitted. This effectively removes the usefulness of the Domain attribute for any form of IP address, aside from the implicit use mentioned above.
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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