October 1999
Beginner
521 pages
15h 28m
English
Content preview from Practical Internet GroupwareBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Web: URL Schemes
A series of RFCs document URL schemes based on a variety of protocols. These include:
- RFC2255 (December 1996, The LDAP URL Format)
Enables web-style access to LDAP servers. For example, my entry in the Switchboard directory is accessible, from a browser, using the URL:
ldap://ldap.switchboard.com/cn%3DJon%20Udell%2C%20ou%3DZEDHINGL%2C%20o%3Dswitchboard%2C%20c%3DUS
- RFC2192 (September 1997, IMAP URL Scheme)
Defines an imap: URL scheme that supports web-style references to objects (e.g., messages) that live on IMAP servers.
- RFC2368 (July 1998, The mailto URL Scheme)
Extends the mailto: scheme defined in RFC1738, enabling the message composition and filtering techniques that we saw in Chapter 4 and Chapter 9.
- RFC2384 (August 1998, The POP URL Scheme)
According to RFC2384, “A POP3 mailbox (like an [IMAP4] mailbox) is a network resource, and URLs are a widely supported generalized representation of network resources. A means of specifying a POP3 mailbox as a URL will likely be useful in many programs and protocols.”
Finally, here’s a bit of web trivia. If you store the following text in a file:
<IMG SRC="data:image/gif;base64,R0lGODdhMAAwAPAAAAAAAP///ywAAAAAMAAw AAAC8IyPqcvt3wCcDkiLc7C0qwyGHhSWpjQu5yqmCYsapyuvUUlvONmOZtfzgFz ByTB10QgxOR0TqBQejhRNzOfkVJ+5YiUqrXF5Y5lKh/DeuNcP5yLWGsEbtLiOSp a/TPg7JpJHxyendzWTBfX0cxOnKPjgBzi4diinWGdkF8kjdfnycQZXZeYGejmJl ZeGl9i2icVqaNVailT6F5iJ90m6mvuTS4OK05M0vDk0Q4XUtwvKOzrcd3iq9uis F81M1OIcR7lEewwcLp7tuNNkM3uNna3F2JQFo97Vriy/Xl4/f1cf5VWzXyym7PH hhx4dbgYKAAA7" ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.