September 2001
Intermediate to advanced
352 pages
11h 1m
English
Content preview from DNS on Windows 2000, Second EditionBecome 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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Name
PX (pointer to X.400/RFC 822 mapping information)
Textual representation:
owner ttl classPXpreference RFC822 address X.400 address
Example:
ab.net2.it. IN PX 10 ab.net2.it. O-ab.PRMD-net2.ADMDb.C-it.
Binary representation:
PX type code: 26
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
| PREFERENCE |
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
/ MAP822 /
/ /
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
/ MAPX400 /
/ /
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+where:
- PREFERENCE
A 16 bit integer which specifies the preference given to this RR among others at the same owner. Lower values are preferred.
- MAP822
A
domain-nameelement containingrfc822-domain, the RFC 822 part of the RFC 1327 mapping information.- MAPX400
A
domain-nameelement containing the value ofx400-in-domain-syntaxderived from the X.400 part of the RFC 1327 mapping information.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.