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 ‘Hardware’ Category

Buffalo WLAE-AG300N DHCP client is buggy and adds a NULL character to the host name.

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:

Read the rest of this entry »

Posted in Access Points, Buffalo, Hardware, Internet, MikroTik, Network-and-equipment, Power User, routers, WinBox | Leave a Comment »

MikroTik CHANGELOG_6 link

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 »

Lantronix SpiderDuo Remote KVM Switch: Affordable KVM Over IP Switches

Posted by jpluimers on 2016/05/02

Lantronix SpiderDuo Remote KVM Switch: Affordable KVM Over IP Switches.

Interesting KVM-over-IP solution.

–jeroen

via: A bunch of stuff broke this month, learned a lot fixing it all | TinkerTry IT @ Home.

Posted in ESXi4, ESXi5, ESXi5.1, ESXi5.5, ESXi6, Network-and-equipment, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »

LSI sense codes

Posted by jpluimers on 2016/04/29

A while ago, I had RAID arrays suddenly drop out with unexpected sense codes.

I had a hard time tracking down what was wrong (it ended up being a faulty LSI Multi-lane Internal SFF-8087  to SATA/SAS Cable).

This caused all sorts of unexpected failures, hard to track down to any specific sense code.

As drives are bound to fail, and finding sense codes is a bit difficult, here are a few links that might help if I ever run into trouble again:

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Posted in LSI/3ware, Power User, RAID, SAS/SATA, SFF-8087 | Leave a Comment »

“Comprehensive Guide to pfSense 2.3” and “pFsense Firewall setup and Features in depth March 2016”

Posted by jpluimers on 2016/04/25

Now that pfSense 2.3 is out some videos:

–jeroen

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Posted in Internet, pfSense, Power User, routers | Leave a Comment »

MikroTik CRS226-24G-2S+RM Review – A super switch

Posted by jpluimers on 2016/04/18

Interesting device: Our review of the MikroTik CRS226-24G-2S+RM a 1U rackmount 24 port gigabit switch with dual 10 gigabit Ethernet SFP+ ports and a slick management interface.

Source: MikroTik CRS226-24G-2S+RM Review – A super switch

It’s fanless, support SFP+ and many people seem to like it.

Pictures are at Just got my CRS226-24G-2s+RM! – MikroTik RouterOS.

There is also a desktop version of it called CRS226-24G-2S+IM.

–jeroen

Future reading:

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

Tools that Isotopp installed on his Mac…

Posted by jpluimers on 2016/04/01

IRC so: »i> Isotopp: Ich habe jetzt nen Mac als Arbeitsplatzrechner… Was will man als UNIX Hacker zuerst an Tools installieren?«

Source: IRC so: »i> Isotopp: Ich habe jetzt nen Mac als Arbeitsplatzrechner… Was will… by Kristian Köhntopp.

Since G+ is very bad at searching, I created this summary of the tools; read the full G+ post (Google Translate is quite OK), including comments on why.

Edit: 20160402 – I’m posting regular updates based on the comments for that G+ post. I’ve changed or added German iTunes store links to US-English ones.

Read the rest of this entry »

Posted in Apple, Audacity, Audio, Fusion, Hardware, Keybase, Keyboards and Keyboard Shortcuts, KVM keyboard/video/mouse, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Pro, Media, OS X 10.10 Yosemite, OS X 10.11 El Capitan, Power User, Security, VirtualBox, Virtualization, VMware | Leave a Comment »

From the #alleskaputt -Dept: Hotel, Internet of Shit Switches, Predictable IP… boom!

Posted by jpluimers on 2016/04/01

From the #alleskaputt -Dept: Hotel, Internet of Shit Switches, Predictable IP Addresses (== Room Number) and no security. Right. – Kristian Köhntopp – Google+

referring to: mjg59 | I stayed in a hotel with Android lightswitches and it was just as bad as you’d imagine

And then I noticed something. My room number is 714. The IP address I was communicating with was 172.16.207.14. They wouldn’t, would they?

Then you get this:

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Posted in #alleskaputt, Development, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »

Some links on SSD RAID

Posted by jpluimers on 2016/03/29

In the future, I need to add my own experience as well. For now some links:

–jeroen

Posted in Hardware, LSI/3ware, Power User, RAID, SSD | Leave a Comment »

Two opinions on Netflix and blocking: they hate Netflix or contact tr@netflix.com and try to solve …

Posted by jpluimers on 2016/03/28

Basically there are two opinions on Netflix and blocking:

  • TL;DR: People use VPNs for security, Netflix fucks them up, they hate Netflix for that and just torrent that shit.
  • tl;dr If you have issues with Netflix on public Wifi, contact the provider and forward tr@netflix.com to them so they can settle issues.

I’m not a netflix user (or user of any form of DRM) as I really dislike the fact that DRM means for any reason your license can be ended. I’ve seen too many players going out of business or taking decisions turning.

So I buy CDs, DVDs, BlueRays or DRM-free media files. Now it’s my problem of making proper back-ups to ensure future access to them (:

The DRM walls and ladders war^w game has gone so far that in this case, Netflix is blocking even though the WiFi provider / proxy / VPN is in the same country like the below imgur image:

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Posted in Cloud, Infrastructure, Netflix, Network-and-equipment, Power User, VPN | Leave a Comment »