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Natriumselenit wasserfrei CZDA 10g
Natriumselenit wasserfrei CZDA 10g
Natriumselenit wasserfrei CZDA 10g
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Natriumselenit wasserfrei CZDA 10g

Marsoni M251S
Sale price$60.00
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Natriumselenit wasserfrei CZDA 10gNatriumselenit wasserfrei CZDA (Na2SeO3) Technische Informationen ber das chemische Reagenz: Chemische Formel: Na2SeO3 Chemische Bezeichnung: Natriumselenit wasserfrei CAS Nummer: 10102 18 8 EC Nummer: 233 267 9 Molare Masse: 172,94 g mol Aussehen: weies kristallines Pulver oder Granulat Geruch: geruchlos pH Wert (50 g l H2O, 20C): ca. 8 9 Schmelzpunkt: > 700C (Zersetzung) Siedepunkt: nicht anwendbar (Zersetzung) Selbstentzndungstemperatur: nicht
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4.1 ★★★★★
Based on 1346 reviews
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Product Reviews
C
Verified Purchase
C. Brown
Draper, US
★★★★★ 5
Good DNS reference
Format: Paperback
The Book is a good reference for BIND9 DNS administration. Although, at this time, it's a bit outdated. It wasn't written to reference DNSSEC, or other new configurations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2025
A
Verified Purchase
Alexander
Lexington, US
★★★★★ 4
Overall it was an OK book. I am already ...
Format: Paperback
Overall it was an OK book. I am already "competent" with DNS, specifically the BIND9 implementation but I got the book as reference material since the official documentation is a little sparse. The fifth edition (not sure about the others) even covers, albeit a little too briefly, how to deal with reverse lookup zones with subnet masks that do not fall on octet boundaries.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2015
D
Verified Purchase
Dan
Lowell, US
★★★★★ 5
Domain Names...Serves us!
Format: Paperback
This is the most complete and must-have DNS book i've ever seen before. Nor only prepares you to understand every basic and some advanced issues about DNS, it also shows a lot of "tricks" with the most powerfull and well know - famous DNS implementation!: BIND. If you are a beginner in the DNS world, this is a good step towards become an expert, if you're already an expert this guide will surely show you a lot of useful information in your daily DNS administration problems. Definitely, this was one of my best investments on my way to become a site administrator.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2011
P
Verified Purchase
Pzano
Birmingham, US
★★★★★ 5
Thicker than I anticiapted
Format: Paperback
The encyclopedia of DNS books, meaning thicker than a phone book. I like the fact that this book is thick but so easy to read and follow along with. If you know nothing about DNS, this book makes it easy to learn about DNS. It starts with the history of DNS and then explains the hierarchy of the DNS tree. A must read if you want to improve your understanding of the internet and what happens under the hood for name resolution.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2014
T
Verified Purchase
Tracy
Louisville, US
★★★★★ 5
Best practical book on DNS and how it works
Format: Kindle
I was interested in finding out more about how DNS is deployed and operated in practice. The first few chapters in this book deliver very well in this regard. My motivation was to find out more about how a certain type of Internet attack -- the "open DNS resolver attack" -- works. Even though this book was written well before this attack became popular and well known -- and therefore the attack is not mentioned, let alone analyzed -- the book was still quite helpful to me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2014

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