Author Archive
Posted by jpluimers on 2016/05/13
Buffalo WLAE-AG300N is one of those buggy DHCP clients… Even running firmware Ver.1.85 (R1.05/B1.00)), it gets the length of the DHCP host name wrong so adds a bogus NULL byte to that name.
@Buffalo: please fix this.
The DHCP client options are of structure Type/Length/Value so a client is supposed to set the length of the hostname to exactly the number of characters.
However there exist buggy clients that either send a length of 1 more and a \00 at the end of the name, or send a fixed length and pad it with \00 as necessary.
Source: DHCP server: Odd active hostname behaviour: some views have null character at the end, some don’t. – MikroTik RouterOS
Fromt a packet capture:
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Posted in Access Points, Buffalo, Hardware, Internet, MikroTik, Network-and-equipment, Power User, routers, WinBox | Leave a Comment »
Posted by jpluimers on 2016/05/13
RegJump.exe is really cool, and has already there for more than a year (:
This little command-line applet takes a registry path and makes Regedit open to that path. It accepts root keys in standard (e.g. HKEY_LOCAL_MACHINE) and abbreviated form (e.g. HKLM).
usage: regjump <<path>|-c>
-c Copy path from clipboard.
e.g.: regjump HKLM\Software\Microsoft\Windows
–jeroen
via: RegJump.
Posted in Power User, Windows, Windows 7, Windows 8, Windows 8.1, Windows 9, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Vista, Windows XP | Leave a Comment »
Posted by jpluimers on 2016/05/12
Since I need to do some lock-free multi-threaded queue work in Delphi shortly: The Delphi Geek: Lock-free vs. locking
Posted in Uncategorized | Leave a Comment »
Posted by jpluimers on 2016/05/12
[WayBack] Pandoc is so versatile that you sometimes forget a conversion can be as simple as a one-liner:
pandoc -s README.rst -o readme.html
This converts the reStructured text in README.rst to html.
Pandoc is smart enough to recognise the conversions without you telling the formats with -f (input format) and -t (output format) explicitly.
If you do need to explicitly specify the format, it is useful to query which formats are supported as per [WayBack] Pandoc – Pandoc User’s Guide: specifying formats:
pandoc --list-input-formats
pandoc --list-output-formats
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Posted in Development, PDF, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2016/05/11

Sometimes you want to run a batch file from a Task Scheduler task. For that, the user under which the task runs needs to Logon as a batch job right. If it hasn’t, you get this nice error message:
“This task requires that the user account specified has log on as batch job rights”.
Despite being part of the Windows Server 2003 Resource Kit Tools, you can still use ntrights in more modern Windows versions to grant or revoke this right.
As ntrights uses a hard to remember SeBatchLogonRight name for it and I tend to forget the ntrights syntax, I wrote two batch files to grant or revoke the Logon as Batch Job rights for the specified user:
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Posted in Batch-Files, Development, Power User, Scripting, Software Development, Windows, Windows 7, Windows 8, Windows 8.1, Windows 9, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Vista | Leave a Comment »
Posted by jpluimers on 2016/05/10
The basics:
- Beforehand, Shazam fingerprints a comprehensive catalog of music, and stores the fingerprints in a database.
- A user “tags” a song they hear, which fingerprints a 10 second sample of audio.
- The Shazam app uploads the fingerprint to Shazam’s service, which runs a search for a matching fingerprint in their database.
- If a match is found, the song info is returned to the user, otherwise an error is returned.
More details at How Shazam Works To Identify (Nearly) Every Song You Throw At It including this fingerprint example

Song Audio Fingerprint
–jeroen
via: How Shazam Works To Identify (Nearly) Every Song You Throw At It.
Posted in Algorithms, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2016/05/09
When you roll-out new machines and you get Windows Update 80072EE2 to install updates required by some installations…
If you receive Windows Update error 80072ee2 while checking for updates, the Windows Update servers might be experiencing an unusually high number of requests for updates.
–jeroen
Source: Windows Update error 80072ee2 – Windows Help
Posted in Power User, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1 | Leave a Comment »
Posted by jpluimers on 2016/05/09
Interesting:
Rufus is a small utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc. It can be be especially useful for cases where: you need to create USB installation media from bootable ISOs (Windows, Linux, etc.); you need to work on a system that doesn’t have an OS installed; you need to flash a BIOS or other firmware from DOS; you want to run a low-level utility. Rufus is significantly faster than similar utilities and it’s open source and free.
–jeroen
via: Rufus Portable | PortableApps.com – Portable software for USB, portable and cloud drives.
Posted in Boot, Power User | Leave a Comment »
Posted by jpluimers on 2016/05/06
In the absence of http://www.mikrotik.com/download/CHANGELOG_6 (somehow it’s unreachable where I live) here links that do work:
–jeroen
Posted in Internet, MikroTik, Power User, routers | Leave a Comment »