The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Power User’ Category

OpenSuSE Tumbleweed E20 on Raspberry Pi 3: accessing the enlightenment desktop over VNC after automatic logon

Posted by jpluimers on 2018/12/14

For a keyboard-less Raspberry Pi machine that functions as a read-only screen, I needed:

  • automatic logon
  • remote VNC accessibility
  • no screen blanking

I already had the E20 ([WayBackEnlightenment) X11 server running as that’s the first image on [WayBackHCL:Raspberry Pi3 – openSUSE that as a graphical UI that works.

Read the rest of this entry »

Posted in *nix, *nix-tools, Power User, Screen sharing, VNC/Virtual_Network_Computing, X11, X11vnc | Leave a Comment »

macos – El Capitan /private/var/folders cache files consuming 30–40 GB – Ask Different

Posted by jpluimers on 2018/12/14

[WayBackmacos – El Capitan /private/var/folders cache files consuming 30–40 GB – Ask Different

TL;DR: a reboot will usually clean up most of the chaches and yes you can remove those caches by hand after closing the applications involved.

–jeroen

Posted in Apple, Mac OS X / OS X / MacOS, Power User | 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+:

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Posted in Blogging, Bookmarklet, InternetArchive, Power User, SocialMedia, WayBack machine, Web Browsers | Leave a Comment »

Links for Nagios openSuSE Tumbleweed monitoring (including Android devices)

Posted by jpluimers on 2018/12/13

For my link archive:

Non-stable repos:

–jeroen

Posted in *nix, Linux, Monitoring, Nagios, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »

on my research list: autossh

Posted by jpluimers on 2018/12/12

Having mainly used ssh as a means to connect to a shell on remote machines and occasionally a manual port forward.

I never noticed autossh where you can automate the ssh logon process to keep permanent port forwards up and running. Cool!

It’s on my research list now, as this will be useful probably sooner than later:

My initial impression is that autossh is a wrapper around the regular ssh client that allows reconnection upon communication failures.

–jeroen

Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, Power User, SSH, TCP | 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 [WayBackhttps://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 [WayBackBlock 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 »

Google+ now closes in April 2019, as yet another bug gave developers access to non-public data from 52.5M users | TechCrunch

Posted by jpluimers on 2018/12/11

Google+ closes in April 2019. The G+ API even sooner.

Via: [WayBackGoogle+ bug gave developers access to non-public data from 52.5M users | TechCrunch.

This seems to be a trend, so I need to try to get out before the end of the year.

I think I will move to pluspora.com/people/77b27110adcb013646c5005056268def.

Via: [WayBack] TechCrunch on Twitter: “Google+ security bug gave developers access to non-public data from 52.5M users . by @fredericl”

–jeroen

Posted in LifeHacker, Power User | Leave a Comment »

If parts of your letsencrypt renewals succeed and others give you “urn:acme:error:connection” then just retry

Posted by jpluimers on 2018/12/10

On the same server, part of my letsencrypt renewals worked fine, while others had an error like this:

-------------------------------------------------------------------------------
Processing /etc/letsencrypt/renewal/spring4d.4delphi.com.conf
-------------------------------------------------------------------------------
Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for spring4d.4delphi.com
Waiting for verification...
Cleaning up challenges
Attempting to renew cert from /etc/letsencrypt/renewal/spring4d.4delphi.com.conf produced an unexpected error: Failed authorization procedure. spring4d.4delphi.com (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Error getting validation data. Skipping.
...
 - The following errors were reported by the server:

   Domain: spring4d.4delphi.com
   Type:   connection
   Detail: Error getting validation data

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A record(s) for that domain
   contain(s) the right IP address. Additionally, please check that
   your computer has a publicly routable IP address and that no
   firewalls are preventing the server from communicating with the
   client. If you're using the webroot plugin, you should also verify
   that you are serving files from the webroot path you provided.

A retry worked fine:

-------------------------------------------------------------------------------
Processing /etc/letsencrypt/renewal/spring4d.4delphi.com.conf
-------------------------------------------------------------------------------
Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for spring4d.4delphi.com
Waiting for verification...
Cleaning up challenges
...
The following certs were successfully renewed:
  /etc/letsencrypt/live/spring4d.4delphi.com/fullchain.pem (success)

–jeroen

Posted in Encryption, Let's Encrypt (letsencrypt/certbot), Power User, Security | Leave a Comment »

Anaylizing PDF files

Posted by jpluimers on 2018/12/10

A few things that failed/worked:

I still need to look at the Multivalent.jar when I have a system with Java again, as it is mentioned in [WayBack] pdf generation – Is there a tool to analyze a PDF in terms of fonts, objects, fields and their respective size (kb)? – Stack Overflow

References:

–jeroen

Posted in Adobe, Adobe Acrobat, Fujitsu ScanSnap, Hardware, ix100, ix500, Power User, Scanners | 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.isWindows 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

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