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kinderfahrrad puky Puky Youke Classic 18" Kinderfahrrad, Retro RosePUKY Youke Classic 18 Die perfekte Kinderfahrradwahl ab 5 Jahren Das PUKY Youke Classic 18 ist das ideale erste richtige Fahrrad fr Kinder ab etwa 5 Jahren. Mit seinem leichten Aluminiumrahmen, durchdachter Ausstattung und klassischem Design bietet es eine sichere und komfortable Einfhrung in die Welt des Radfahrens geeignet fr Kinder mit einer Schrittlnge von 4857 cm und einer Krpergre von 110125 cm. Eigenschaften: Leichter Aluminiumrahmen: Stabil,
PUKY Youke Classic 18 – Die perfekte Kinderfahrradwahl ab 5 Jahren
Das PUKY Youke Classic 18 ist das ideale erste „richtige“ Fahrrad für Kinder ab etwa 5 Jahren. Mit seinem leichten Aluminiumrahmen, durchdachter Ausstattung und klassischem Design bietet es eine sichere und komfortable Einführung in die Welt des Radfahrens – geeignet für Kinder mit einer Schrittlänge von 48–57 cm und einer Körpergröße von 110–125 cm.
Eigenschaften:
- Leichter Aluminiumrahmen: Stabil, robust und trotzdem leicht genug, damit Kinder das Rad sicher und selbstständig steuern können.
- Zwei Bremssysteme: Ausgestattet mit Rücktrittbremse und V-Bremse vorne – ideal, um verschiedene Bremstechniken sicher zu erlernen.
- Mitwachsend: Lenker und Sattel sind höhenverstellbar, sodass das Fahrrad über mehrere Jahre mit dem Kind mitwachsen kann.
- Ergonomischer Sitzkomfort: Die aufrechte Sitzposition und die kindgerechte Sattelform sorgen für bequemes und sicheres Fahren.
- Komplett ausgestattet: Inklusive bruchsicherem Lenkerkorb, geschlossener Kettenkasten, Sicherheitslenkergriffen, Lenkerpolster, Klingel und Seitenständer – alles bereit für den Alltag.
- Langlebige Lackierung: Die hochwertige Pulverbeschichtung schützt zuverlässig vor Kratzern und Witterungseinflüssen.
- Geringes Gewicht: Mit nur ca. 8,7 kg ist das Fahrrad leicht zu handhaben – perfekt für junge Fahranfänger.
Technische Details:
- Altersempfehlung: ab ca. 5 Jahren
- Körpergröße: 110–125 cm
- Schrittlänge: 48–57 cm
- Gewicht: ca. 8,7 kg
- Material: Aluminiumrahmen, Kunststoffkorb, geschlossener Kettenschutz
- Bremssystem: Rücktrittbremse + V-Bremse vorne
Lieferumfang:
- 1x PUKY Youke Classic 18 Kinderfahrrad
- 1x bruchsicherer Korb aus Kunststoff
- PUKY Sicherheitsset (Lenkerpolster, Sicherheitslenkergriffe, geschlossener Kettenschutz, Ständer, Klingel)
Das PUKY Youke Classic 18 vereint Sicherheit, Komfort und zeitloses Design in einem leichten Kinderfahrrad – ideal für kleine Alltagsradler und große Abenteuer auf zwei Rädern.
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4.4 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Well Presented Concepts and Implementations (5th ed.)
Format: Paperback
Foreword: I have been running my own DNS servers on OpenBSD and FreeBSD for about 4 years. All of my previous DNS knowledge was obtained from the man pages and online tutorials.
The book is great because the example network used throughout the book is built upon, showing you how to "grow" your DNS with your expanding network. The design and implementation presented is priceless and covers some of my favorite topics: placement of slaves, hidden primaries, building root servers, split views, daisy-chaining, forwarders, partial-slaves, address maintenance issues, etc. The pros and cons of each setup are weighed and best practices are suggested. If you like a generous helping of diagrams, examples, and tables as a learning aid, you won't be disappointed.
One specific example of weighing the pros and the cons is presented on page 479 as follows:
"Could we have saved a few bucks on hardware by using our external authoritative nameservers as forwarders, too? Sure, but that would have presented a risk." After that statement, they proceed into all the details of "why."
There is adequate coverage on security. The authors preach defense in depth. An implementation example includes hiding your masters and only exposing bastion slaves. Securing communications between the masters and slaves is also covered in the security chapter using DNSSEC and TSIG. I think IPSec is another way to add a security layer, but that is probably another book.
After reading the book, I started to implement my new DNS infrastructure and found myself referring to the index often. It is fairly consummate, however, I found a few things missing, such as the $GENERATE statement. Also, some of the configuration details were lacking slightly. For example, the order in which ACL elements are processed and how negated elements affect the processing outcome. Another question I had was, what would happen if an ACL name is negated, and what if that ACL contained some negated elements. Well I found my answer by actually trying it and verifying with the canonical reference docs on isc.org.
I gave this book five stars because of its effectiveness in presenting the concepts and implementations of DNS using examples, good writing style, tables, and diagrams. If you're looking for the last 4 percent of the diminutive details of DNS, you will find it on isc.org.
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Reviewed in the United States on August 22, 2006
★★★★★ 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.
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Reviewed in the United States on January 2, 2025
★★★★★ 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.
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Reviewed in the United States on July 31, 2015
★★★★★ 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.
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Reviewed in the United States on June 11, 2011
★★★★★ 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.
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Reviewed in the United States on February 7, 2014
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