The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Getting the IP addresses of gmail MX servers – via Super User – dig isn’t enough

Posted by jpluimers on 2017/03/06

I needed the current IP-addresses of the gmail MX server (don’t ask the details; but it has to do with the brain-dead TP-LINK ER5120 configuration possibilities).

This is the command I finally used:

dig @8.8.8.8 +short MX gmail.com | sed "s/^[0-9]* //g" | sed "s/.$//" | xargs -I {} dig @8.8.8.8 +short {} | uniq | sort

Basically it’s a three stage sequence which had to work on OS X as well as Linux using a bash shell:

  1. Use the Google DNS servers (either 8.8.8.8 or 8.8.4.4)
  2. Get the FQDNs of MX records of gmail.com which are the mail servers for GMail.
  3. Translate these in IPv4 addresses
  4. Filter into a distinct list (just in case entries are duplicate: they aren’t yet, but might be)

The basics of the above are about using dig to get short (or terse) answers with as little (but still to the point) information as possible.
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Posted in *nix, *nix-tools, DNS, Power User | 1 Comment »

Trojans communicating through DNS: Cisco’s Talos Intelligence Group Blog: Covert Channels and Poor Decisions: The Tale of DNSMessenger

Posted by jpluimers on 2017/03/06

DNS traffic within corporate networks should also be considered a channel that an attacker can use to implement a fully functional, bidirectional C2 infrastructure.

Source: [WayBack] Cisco’s Talos Intelligence Group Blog: Covert Channels and Poor Decisions: The Tale of DNSMessenger

–jeroen

Posted in DNS, Internet, Power User, Security | Leave a Comment »

The Best Time to Buy Anything During the Year 2017 – Lifehacker

Posted by jpluimers on 2017/03/03

I wonder if this applies to Europe as well as the USA: [WayBack] The Best Time to Buy Anything During the Year 2017 – Lifehacker

–jeroen

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Posted in LifeHacker, Power User | Leave a Comment »

Nexus 5 battery replacement

Posted by jpluimers on 2017/03/03

Because the battery was getting very bad:

Note the battery adhesive was so strong that one of my plastic opening tools broke.

–jeroen

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Posted in Google, Power User | Leave a Comment »

The IDE Fix Pack 5.95 is compatible with Delphi 10.1 Update 2

Posted by jpluimers on 2017/03/03

Yes it is compatible: [WayBack] Andreas‏ @AndyHTech: Following More Why is there no #IDEFixPack for #Delphi Berlin 10.1 Update 2 ? Just use the one that was released for the RTM version, it works for Up1&Up2.

via: David Heffernan on [WayBack] Is the IDE Fix Pack 5.95 compatible with Delphi 10.1 Update 2? I mean it’s not explicitly mentioned so I’m assuming not, but I’m asking just in case.I… – Asbjørn Heid – Google+

–jeroen

Posted in Delphi, Delphi 10.1 Berlin (BigBen), Development, Software Development | Leave a Comment »

Factory restoring a 3rd generation Apple TV was more cumbersome, but I learned about BlueTooth keyboard sharing from my Mac

Posted by jpluimers on 2017/03/03

Apple TV needs iTunes

Apple TV needs iTunes

A while ago, my model A1469 3rd generation Apple TV had a slowly blinking white light but nothing displayed over HDMI any more, so I searched for Apple TV slow blinking white and

Reading Restoring your Apple TV (when its white light is flashing) | Comics and gadgets, I opted for the first option: a soft-restart of the Apple TV. To do that you have to press menu+down on the Apple Remote at the same time for 5+ seconds, then wait for the Apple TV to restart. That initially did show an image over HDMI which later disappeared. I didn’t get the image at first as I thought it was looking for iTunes media over USB (like from an iPhone or iPad), so I waited for a time-out to occur.

After a while that image disappeared and the Apple TV white LED started rapidly flashing. Not good.

Later I found the image was portraying a USB cable not having a connection to an iTunes logo and some dark grey text on a black background pointing to support.apple.com/appletv/restore.

I didn’t see that at first as the room was a bit brightly lit since we had a lot of sun that day so this non-descriptive image with grey on black UX worked really well.

Conclusion: I had to restore the Apple TV which I thought would be straight-forward as it had been connected to my iCloud account.

 

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Posted in Apple, Apple TV, iOS, Keyboards and Keyboard Shortcuts, Power User | Leave a Comment »

The Industrial Internet of Things defined

Posted by jpluimers on 2017/03/02

https://insights.hpe.com/articles/what-is-the-industrial-internet-of-things-1702.html

Posted in Uncategorized | Leave a Comment »

Is this a good TeamViewer replacement? Ammyy Admin – Remote Desktop Sharing – buy.

Posted by jpluimers on 2017/03/02

Anybody of my followers who can provide a good comparison between [WayBack] Ammyy Admin – Remote Desktop Sharing and TeamViewer?

–jeroen

Posted in LifeHacker, Power User | 3 Comments »

KPN LoRa om Van Raam fietsen te traceren Zakelijk KPN Forum

Posted by jpluimers on 2017/03/02

Interesting: [Archive.is] KPN LoRa om Van Raam fietsen te traceren Zakelijk KPN Forum via [WayBack] Nederlands bedrijf komt met narrowband-internet-of-things-ontwikkelbordje – Computer – Nieuws – Tweakers

–jeroen

Posted in Arduino, Development, Hardware Development, Hardware Interfacing | Leave a Comment »

How to enable JavaScript in your browser and why

Posted by jpluimers on 2017/03/02

Just in case it’s not enabled yet: How to enable JavaScript in your browser and why

It even has some html to redirect to it, which I’ve replaced with the wayback machine (and put into a gist as WordPress kills noscript tag blocks and everything they contain.


<noscript>
For full functionality of this site it is necessary to enable JavaScript.
Here are the <a href="http://web.archive.org/web/20160402005258/http://www.enable-javascript.com/&quot; target="_blank">
instructions how to enable JavaScript in your web browser</a>.
</noscript>

view raw

enable-javascript.com-noscript-fragment.html

hosted with ❤ by GitHub

I needed it as at a client site, one of the embedded devices would show the message “Javascript is required to use this web portal” in various web browsers so I had to check the JavaScript status in each browser.

–jeroen

Posted in Chrome, Chrome, Development, Firefox, Google, Internet Explorer, JavaScript/ECMAScript, Opera, Power User, Safari, Scripting, Software Development, Web Browsers | Leave a Comment »

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