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double bob stroller for sale BOB Revolution Flex 3.0 Duallie Jogging Stroller – Baby GrandWith the two seat BOB Revolution Flex 3. 0 Duallie jogging stroller, you can take both kids on any outingwhether prepping for a 10K or heading to the zoo. Mountain bike style suspension keeps you running smoothly from sidewalk to hiking trail, and ten storage pockets make room for more gear. Bring on the bumpy paths and rocky roads. Our signature mountain bike style suspension has shocks mounted by the seating area so your little adventurers will feel
With the two-seat BOB Revolution Flex 3.0 Duallie jogging stroller, you can take both kids on any outing—whether prepping for a 10K or heading to the zoo. Mountain-bike style suspension keeps you running smoothly from sidewalk to hiking trail, and ten storage pockets make room for more gear. Bring on the bumpy paths and rocky roads. Our signature mountain-bike style suspension has shocks mounted by the seating area so your little adventurers will feel less bumps along the way and ride happier, longer.
- Fully-upright seats allow your children to see the world on all your adventures and recline to near flat with the push of a button.
- Ultra-padded compression seats with ventilation provide all-day comfort.
- Peek & Chat windows with magnetic closures let you check on and chat with your children while on the go.
- Extra-large UPF 50+ canopies shield your children from sun and rain.
- Reflective accents on the canopies and cargo basket keep you visible and safe.
- Swivel-locking front wheel swivels for easy maneuverability or locks for stability when jogging on- or off-road.
- Two-seat “Duallie” design transports 2 children with a 50 lb weight capacity for each seat, yet is slim enough to fit through standard doorways.
- Includes tracking adjustment knob to keep your stroller running straight when front wheel is in the locked position.
- Travel system ready when paired with the BOB Duallie Infant Car Seat Adapters for most major brand car seats. (Requires the BOB Duallie Infant Car Seat Adapter - sold separately) Nuna, Clek, Cybex, Maxi-Cosi, Chicco, UppaBaby, Britax, Graco, Peg Perego
- Five-point harnesses, with no-rethread design keep your children secure and allow for easy height adjustments.
- Easy 2-step fold for convenient transportation and storage.
- Easy-remove rear wheels allow you to store the stroller in tight trunk spaces.
- Flip-flop-friendly parking brake secures both rear wheels in the stopped position with a single step.
- Product Weight: 33.1 lbs
- Folded Length Wheels Off (in): 33L x 31W x 12H
- Pneumatic Tire Size: Rear 16" (all terrain), front 12" (all terrain)
- Handlebar Height (in): 43
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4.2 ★★★★★
Based on 20 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