Posted by jpluimers on 2016/06/21
A long time ago, I found out German trains can show a Kernel version number during their boot sequence (sometimes even at their station, in this case Hannover Central Station). Recently, I found who posted the original of the picture (Volker Briegleb) and through reddit that Volker had posted more pictures on a twitter thread.
So this train showed:
The MAC address indicates the network device is made by ANNAX Anzeigesysteme GmbH.
–jeroen
Posted in Development, Hardware, Software Development | Leave a Comment »
Posted by jpluimers on 2016/05/20
Mikrotik have statistics and way more features. Of the not so good features on the TP-LINK ER-5120 multi-WAN router (none of which are mentioned in their documentation), the worst 2 are:
Source: Gigabit Load Balance Broadband Router TL-ER5120 – Welcome to TP-LINK
Source: MikroTik – Forum – Tweakers
RouterBoard RB3011UiAS-RM description. The RB3011 is a new multi port device, our first to be running an ARM architecture CPU for higher performance than ever before. The RB3011 has ten Gigabit ports divided in two switch groups, an SFP cage and for the first time a SuperSpeed full size USB 3.
Source: RouterBoard.com : RB3011UiAS-RM (link has high res images)
Source: RB3011UiAS-RM – MikroTik RouterOS
The CCR1009 will always be faster, even passively cooled: Source: RB3011 Fan Notice compared to CCR 1009 – MikroTik RouterOS. The passively cooled versions run at a lower clock-speed which you can even make lower yourself:Source: CCR1009-8G-1S-1S+PC lower clock – MikroTik RouterOS. On the active cooled CCR1009, you can replace the fans to make them more quiet: Source: CCR1009-8G-1S-1S+ General info & Questions – Page 2 – MikroTik RouterOS
Note the ports in/out the switch groups on the CCR1009: Source: CCR 1009 switch chip menu – MikroTik RouterOS
RouterBoard CCR1009-8G-1S-1S+PC description. Our popular 9-core Cloud Core Router is now available in a new passive cooling enclosure. This CCR1009 unit is equipped with two heat-pipes and a specially designed heat-sink, so its completely silent.
Source: RouterBoard.com : CCR1009-8G-1S-1S+PC
RouterBoard CCR1009-8G-1S-PC description. Our popular 9-core Cloud Core Router is now available in a new passive cooling enclosure. This CCR1009 unit is equipped with two heat-pipes and a specially designed heat-sink, so its completely silent.
Source: RouterBoard.com : CCR1009-8G-1S-PC
Source: Advise: CCR1009-1S-PC – MikroTik RouterOS
Source: CCR1009-8G-1S-1S+ is a BEST ROUTER !!! – MikroTik RouterOS
When the power supply breaks: Source: CCR1009-8G question about part number – MikroTik RouterOS
The actively cooled CCR1009 with lots of pictures and screenshots: Source: CCR1009-8G-1S-1S+ General info & Questions – MikroTik RouterOS
Source: Eigen router achter een XS4ALL-VDSL-aansluiting (2) | Harold Schoemaker
Source: xs4all ftth en Mikrotik router – Google Groups
Heeft iemand van jullie ook ervaring met IPv6 van XS4all met een fritzbox? Ik wil namelijk achter deze fritzbox een mikrotik plaaten en IPv6 door routeert.
Source: IPv6 mikrotik router achter een fritzbox.
Source: [Ervaringen/discussie] MikroTik-apparatuur – Netwerken – GoT
–jeroen
Posted in Internet, MikroTik, Power User, routers | Leave a Comment »
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.
Fromt a packet capture:
Buffalo WLAE-AG300N gets the length of the DHCP name wrong and inserts an extra NULL character.
This besides these devices also not automatically powering up when power goes out and comes back up…
Anyway: getting and displaying the packet capture was quite easy:
–jeroen
Posted in Access Points, Buffalo, Internet, MikroTik, Power User, routers | 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 »
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 »
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:
Posted in LSI/3ware, Power User, RAID, SAS/SATA, SFF-8087 | Leave a Comment »
Posted by jpluimers on 2016/04/25
Now that pfSense 2.3 is out some videos:
–jeroen
Posted in Internet, pfSense, Power User, routers | Leave a Comment »
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 »
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.
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 »
Posted by jpluimers on 2016/04/01
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:
Posted in #alleskaputt, Development, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 