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Which DNS Resolver Should I Use?

This content was originally posted as part of the Chit Chat Across the Pond podcast on 14 April 2018 but since the subject is evergreen it is repeated here as a permanent Page. The tutorial was written completely by Bart Busschots of bartb.ie.

Introduction

In this page, Bart teaches us about DNS Resolvers and helps give us the information to choose the right one for us. To get us there, he starts by explaining the background technologies. He explains DNS and how there are two kinds of servers, he explains DNS Name resolution and why caching is important, and the security problems (and solutions) of DNS. Then he explains how third-party DNS providers can solve some of these problems. He explains their motivations which will inform your own decision. Finally (at about the 1-hour mark) he walks through the solutions offered by OpenDNS, Google, Quad9, and Cloudflare. You can listen along below and read the content and view the diagrams as a guide.

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CCATP #533- Bart Busschots on Choosing a DNS Resolver

In this “Lite” version of Chit Chat Across the Pond (within a NosillaCastaway’s definition of Lite), Bart teaches us about DNS Resolvers and helps give us the information to choose the right one for us. To get us there he starts by explaining the background technologies. He explains DNS and how there’s two kinds of servers, he explains DNS Name resolution and why caching is important, and the security problems (and solutions) of DNS. Then he explains how third-party DNS providers can solve some of these problems. He explains their motivations which will inform your own decision. Finally (at about the 1 hour mark) he walks through the solutions offered by OpenDNS, Google, Quad9 and Cloudflare. I loved this episode and you can tell Bart really loves talking about DNS.

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Continue reading “CCATP #533- Bart Busschots on Choosing a DNS Resolver”

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Security Bits – 08 December 2017 – macOS Root Bug, HomeKit Bug, iOS Backup Encryption

Security Medium 1 — macOS High Sierra Root Bug

A nasty bug was found in macOS 10.13 High Sierra — it was possible to cause the root account to become enabled, and to do so with a blank password.

To trigger this bug all you had to do was go into the control panel, click the padlock to un-lock the sensitive settings, change the username to root, enter no password, then hit enter. At this point the authentication would fail, but, the root account would have been made active. Hit enter again, and root with a blank password will be accepted as valid. At this point you can do anything in the control panel, no matter how restricted your account is in theory, and, anything you can get full terminal access as root.

Continue reading “Security Bits – 08 December 2017 – macOS Root Bug, HomeKit Bug, iOS Backup Encryption”

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NC #606 Eye Chart Radio, Yahoo Breach and MD5, Amazon Duet, Nomorobo for iOS, Shelly & Steve Poems

We WILL have episodes of the NosillaCast (and live shows) on both Christmas and New Years day (unlike those other slacker podcasters). Check out last week’s episode of Chit Chat Across the Pond with Chris Ashley from the SMR Podcast (fun with Windows!). I’m one of the new rotating co-hosts for Eye Chart Radio with Mike LaPlante. Bart comes on for just a few minutes to chat about the ginormous Yahoo breach of 1 BILLION accounts is even worse than it sounds. He explains why it was so absurdly bad that Yahoo was hashing passwords with MD5. Terry Austin sends in a review of Nomorobo for the iPhone. Shelly Brisbin does a dramatic reading of her poem, “I Did Not Buy the MacBook Pro”. I’ll tell you about a way to achieve simultaneous onsite and offsite backups using the new Amazon Duet drive from Seagate.


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Continue reading “NC #606 Eye Chart Radio, Yahoo Breach and MD5, Amazon Duet, Nomorobo for iOS, Shelly & Steve Poems”

Why Smile is a Great Company

Smile logoLast week the company Smile announced big changes to their software TextExpander that were not well received by their customer base. Smile co-founder, Greg Scown, was my guest on Chit Chat Across the Pond to talk about it. Before he came on the show, I decided to send him my outline of what I would be asking. In that email I explained that I was planning on being hard on him, and challenging their new direction. I told him that while I respected him and his company, I had serious problems with their decisions. After reading my email, Greg still agreed to come on the show.

When we finished recording, as hard as I was on him, he actually thanked me for having him on the podcast. After the podcast aired, I got a lot of kudos for not going easy on him. The sentiments against their decisions were nearly unanimous. Out of probably 50 comments on the blog, Facebook, G+ and Twitter, only two people who responded were in support of Smile’s decisions. Continue reading “Why Smile is a Great Company”

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