Best in 7 days
Pay in installments of $41.25 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 14 - Jun 19
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
1.28 Inch Touch Screen Ip67 Waterproof Smart Watch Support Bluetooth Call / Sleep Monitoring / Heart Rate Monitoring BlackFeatures: 1. 28 inch colour screen with a resolution of 240x240 Long battery life with 295mAh capacity, 15 days standby time, and 5 days working time Made with high quality materials: aerospace aluminum alloy for the shell and TPU for the strap Multiple functions for fitness tracking and health monitoring, such as calories, distance, exercise mode, sleep monitoring, blood pressure monitoring, heart rate monitoring, and blood oxygen monitoring
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 740 reviews
Sort
Product Reviews
★★★★★ 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
★★★★★ 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
★★★★★ 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
★★★★★ 5
DNS reference
Format: Paperback
The book arrived in perfect condition. This a reference of dns related knowledge.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 11, 2024
★★★★★ 5
One of the best books I've read on DNS and BIND
Format: Kindle
DNS is one of those concepts that is almost kept in mystery in the tech world. The knowledge seems to be passed by word of mouth, and there doesn't seem to be one good repository to go to as an information source. That is not to say that this book is all inclusive, no book can contain every piece of knowledge you need/desire, especially on such a complex topic. This book however does a phenomenal job of demystifying the subject and giving a good, practical understanding of how DNS and BIND work.
I would highly recommend this book to anyone, whether it be the new network/sys admin who has just had complex networking needs dropped on his lap, or even the seasoned network admin who needs a good convenient reference on occasion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2013
recommand products
Air Jordan 1 Centre Court 'White' (2020)
127.50
Couverture Moyenne : Soleil radieux BOHO (fond crème)
62.50
Serviette poncho à capuchon pour enfant (18 mois à 5 ans) : Espace fond crème
20.50
![Plano Protector Series Four-Pistol Case [140402]](https://cdn.shopify.com/s/files/1/0751/4878/7965/files/plano-protector-series-four-pistol-case-140402-hunting-accessories-318.webp?v=1752223340 "Plano Protector Series Four-Pistol Case [140402]")
Plano Protector Series Four-Pistol Case [140402]
24.99
Palace x Carhartt WIP S/S Pocket T-Shirt 'Dollar Green' (2023)
172.80