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

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sosumi – because letitbeep was too obvious – apple Macintosh history

Posted by jpluimers on 2018/07/30

Back in the days, Apple and The Beatles were in a heated fight as Apple was not supposed to do anything resembling music in their systems.

So when sounds needed to be made, they could not be named by words having to do with music.

The legal team in Apple – known for lack of humor – was scrutinizing sources and documents on names that would be inappropriate.

Jim Reekes came up with letitbeep for one of the warning sounds, but that was too obvious, so he said sosumi, pretended it to be a Japanese word and named the sound just like that.

I learned from it through one of the RetroMacCast videos below. Then I found the page Sosumi – Wikipedia. So I guess I’ll be never to old to learn (:

–jeroen

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Posted in Apple, Classic Macintosh, History, Power User | Leave a Comment »

A cheat-sheet for password crackers

Posted by jpluimers on 2018/07/30

Interesting: [WayBack] A cheat-sheet for password crackers

Via: [WayBack] Joe C. Hecht – Google+

–jeroen

Posted in *nix, *nix-tools, Hashing, md5, Power User, Security, SHA, SHA-256, SHA-512 | Leave a Comment »

Going to test some USB 3 gigabit ethernet adapters based on Realtek RTL8153 and Asix AX88179 chips

Posted by jpluimers on 2018/07/27

Later on, I might add a USB31000S in the mix, but I will do some initial testing with USB 3 gigabit ethernet adapters based on Realtek RTL8153 and Asix AX88179 chips.

Things I will focus on with my Retina MacBook Pro 2015 model are:

  • CPU usage
  • Throughput
  • Duration between reconnect on USB after suspend, and renewing the DHCP lease
  • Promiscuous mode capabilities

Some links for my references:

A first impression from the above links is that for Realtek chipset based devices, drivers are more readily included in operating systems, and these chipsets are better at VLAN handling.

–jeroen

Posted in Ethernet, LifeHacker, Network-and-equipment, Power User, USB, USB, USB-C | Leave a Comment »

DISM fix for Windows 8.1 high CPU usage of TiWorker.exe

Posted by jpluimers on 2018/07/27

This worked for Windows 8.1 as well: Trying fix for Windows 8 high CPU usage of TiWorker.exe (via: bit-tech.net) « The Wiert Corner – irregular stream of stuff

DISM /online /cleanup-image /restorehealth

 

After more than one hour of running, it:

  • freed up more than a gigabyte of disk space. Which on an SSD based VM is a lot.
  • solved the huge memory footprint of TiWorker.exe on the right.

–jeroen

Posted in Power User, Windows, Windows 8, Windows 8.1 | Leave a Comment »

Merry SysMas!

Posted by jpluimers on 2018/07/27

For all you SysAdmin’s: happy SysAdmin Day | System Administrator Appreciation Day.

For all others: please show some appreciation for your SysAdmins today. They are the ones keeping your business running. The less visible they are, the better they do their work.

Gifts are always welcome with them, but you can also appreciate SysAdmins by trying this:

And for the SysAdmins: have a laugh:

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Posted in Power User | Leave a Comment »

Just I in case I need to port CombineApacheConfig.py to OpenSuSE properly

Posted by jpluimers on 2018/07/24

I came across a nice tool that combines httpd.conf files:

python CombineApacheConfig.py /etc/apache2/httpd.conf /tmp/apache2.combined.conf

In case I ever need to fully port it to OpenSuSE, I’ve put it in the gist below.

For now it works fine on OpenSuSE when used with the above command. I might make the default depend on the kind of nx it runs on.

via:

–jeroen

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Posted in *nix, *nix-tools, Apache2, Development, Linux, openSuSE, Power User, Python, Scripting, Software Development, SuSE Linux | Leave a Comment »

Use TLS 1.2 or higher, as TLS 1.1 is phased out on many sites, after TLS 1.0/SLL has been disabled by most for a while now

Posted by jpluimers on 2018/07/23

If you get an error like this in one of your tools

OpenSSL: error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version

it means you are using a tool not yet properly supporting TLS 1.2 or higher.

Or in other words: update your tool set.

The reason is that – after turning off TLS 1.0 a while ago – more and more sites do the same for TLS 1.1.

A prime example of a site that warned on this in a clear way very early on is github:

Others have done this too, for instance:

TLS 1.0 is vulnerable to many attacks, and certain configurations of TLS 1.1 as well (see for instance [WayBack] What are the main vulnerabilities of TLS v1.1? – Information Security Stack Exchange), which means that properly configuring the non-vulnerable TLS 1.1 over times gets more and more complex. An important reason to say goodbye to that as well, as TLS 1.2 (from 2008) is readily available for a long time. The much more recent TLS 1.3 (from 2018) will take a while to proliferate.

I ran in the above error because on one of my systems, an old version of wget was luring around, so I dug up the easiest place to download recent Windows binaries for both win32 (x86) and win64 (x86_64):

[WayBack] eternallybored.org: GNU Wget for Windows having a table indicating the OpenSSL version for each wget build.

–jeroen

Reference: Transport Layer Security – Wikipedia: History and development

Posted in *nix, https, HTTPS/TLS security, OpenSSL, Power User, Security, wget | Leave a Comment »

In case I ever need to record calls on my Fritz!Box devices

Posted by jpluimers on 2018/07/23

I need to dig a bit deeper into these links to see how easy it is to record calls made on a Fritz!Box then playing back the captured calls.

Note that in various countries you have to indicate to the calling parties that their calls can be recorded.

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Posted in Fritz!, Fritz!Box, fritzcap, Internet, Power User | Leave a Comment »

The Illustrated Guide to Kubernetes – The Isoblog.

Posted by jpluimers on 2018/07/23

One day you will do containers.

If you want to know how k8n (Kubernetes) can help you with Docker containers, then read [WayBack] The Illustrated Guide to Kubernetes – The Isoblog. and watch the video below.

Very well explained!

Via: [WayBack] The Illustrated Children’s Guide to Kubernetes http://blog.koehntopp.info/index.php/1450-the-illustrated-guide-to-kubernetes/ You can now stop recommending it to me. – Kristian Köhntopp – Google+

 

–jeroen

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Posted in Cloud, Containers, Docker, Infrastructure, Kubernetes (k8n), Power User | Leave a Comment »

(35) Enabling New Hardware in U-Boot – Jon Mason, Broadcom Ltd. – YouTube

Posted by jpluimers on 2018/07/20

Lots of interesting information, especially these discussions where Alexander Graf chipped in:

The hand off of the boot loader to the actual OS payload. The payload and U-boot are in memory running at the same time. The payload can call back into U-boot through the uEFI API that U-boot implements so that the payload provides extra drivers enabling for instance a subsequent graphical stage (splash screen, menus, etc), more hardware access and so on. You even could pass ACPI tables through U-boot to the payload and help shooting yourself in the foot.

Important aspects for upstreaming:

  • keep commits short so they are easy to review
  • make sure patches are always rebaseable for each and every commit set (so it compiles throughout)
  • this tremendously helps doing a git bisect
  • it makes adding features that other parts depend on hard: you need to think on chicken & egg situations in advance

–jeroen

 

Posted in *nix, Development, Hardware Development, Linux, Power User, Software Development, U-Boot | Leave a Comment »

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