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

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Archive for the ‘Internet’ Category

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Strange MAC addresses starting FA:8F:CA without OUI in your network? They are Locally Administered Addresses and likely from Google.

Posted by jpluimers on 2019/01/07

A while ago, I write about Locally Administered Addresses: a few series of MAC addresses you can use on your local network: MAC address ranges safe for testing purposes (Locally Administered Address).

A while ago, I found ones in my network and ones in my WiFi SSID survey starting with FA:8F:CA. They did not show up in the Wireshark · OUI Lookup Tool nor their manufacturer database.

But with bit 7 turned off they start with F8:8F:CA which does show up as “F8:8F:CA Google, Inc.”

They appear to be Google devices, in my case Google ChromeCast ones, though they can also be Google Home ones.

Google does “magic” with networks, just look at a few of the links here:

–jeroen

Posted in Ethernet, Google, Internet, Network-and-equipment, Power User, Ubiquiti, WiFi | Leave a Comment »

The [WayBack] and [Archive.is] links in my blog and G+ stream

Posted by jpluimers on 2018/12/13

Answering a good question on [WayBack] Jeroen Wiert Pluimers – Google+:

Q:

Kevin Powick: Why do so many of your posts have [WayBack] embedded in the text? I’ve never been able to figure it out.

A:

On the blog they point to WayBack URLs of the link that succeeds it because I found out that web pages nowadays last a lot shorter than they used to be so link-rot has increased big time.

I still need to write a bookmarklet that automates that process for me: verify if a page is in WayBack, if not: try to store it, if it fails, store it in Archive.is, then generate the full HTML for me to put in the blog.

–jeroen

 

Posted in Blogging, Power User, SocialMedia, WayBack machine | Leave a Comment »

No more https://www.whatsapp.com/cidr.txt

Posted by jpluimers on 2018/12/11

Not sure when this happened but the CIDR list is no more [WayBack] https://www.whatsapp.com/cidr.txt:

Dear partners,
Please note that we have migrated the latest IP pools of WhatsApp to Facebook Mobile Partner Portal. Feel free to browse to the Settings page of the portal and download the latest WhatsApp IP pool: https://fb.me/mpp_support 
Further IP pool updates are also done through the portal and are no longer distributed via email or through WhatsApp web site.
If you have not yet registered on the Mobile Partner Portal or have difficulties accessing it - please request access through the following form and we'll be happy to assist: https://fb.me/mpp_access
For any technical requests please contact us through the Support section of the portal: https://fb.me/mpp_support 
WhatsApp team

In the past it was the place to get the CIDR so you could either block or allow WhatsApp traffic: [earlier WayBack]

It is still widely cited as way to regulate WhatsApp traffic, for instance at these places:

Time to find an automated way to get the replacement list. Maybe the below helps (via [WayBack] Block facebook messenger and whatsApp on Dlink router – Super User)

whois -h whois.radb.net '!gAS32934'

–jeroen

Posted in Android Devices, Development, Internet, Network-and-equipment, Power User, Routers, SocialMedia, Software Development, Ubiquiti, WhatsApp, WhatsApp for Android, WiFi | Leave a Comment »

Windows Server 2008 and Server 2008 R2 – OpenDNS

Posted by jpluimers on 2018/12/10

I did this a long time ago, but forgot to blog about it back then: [Archive.is] Windows Server 2008 and Server 2008 R2 – OpenDNS.

Summary:

Start with the DNS manager:

%SystemRoot%\system32\dnsmgmt.msc /s

Then open your machine, and double-click Forwarders:

In the dialog, click the Edit button and add DNS servers (for instance Google DNS 8.8.8.8 and 8.8.4.4).

In my case it became this:

Google DNS servers added

Google DNS servers added

Click Done buttons until all dialogs are closed.

 

–jeroen

Read the rest of this entry »

Posted in DNS, Internet, Power User, Windows, Windows Server 2008, Windows Server 2008 R2 | Leave a Comment »

Getting rid of trailing line-endings in the draw.io web interface

Posted by jpluimers on 2018/12/03

One of the things that bugged me for a long time is that every now and then for some shapes, when editing their text, the draw.io web interface puts in trailing line feeds after the text, messing up layout.

The easiest way to work around it is by searching inside the diagram XML for
", then replacing that with a ".

(the above code got screwed by WordPress.com saving it, so the search is in this small gist below)

This behaviour is intermittent on the drawio MacOS desktop app.

–jeroen

 

Posted in Cloud Apps, Development, draw.io, Encoding, Internet, Power User, Software Development, Unicode | Leave a Comment »

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