Posted by jpluimers on 2017/03/17
If you use everything search from VoidTools, then don’t be surprised that pressing Ctrl-T makes it “Always On Top”:
Ctrl-T sets “Always On Top”
Of course this is not defined in “Tools” -> “Options”.
I forgot in which version this was introduced, as in the past I never stumbled over it on keyboards that have Ctrl and Alt reversed.
–jeroen
via: www.voidtools.com • View topic – Everything window is ‘Always On Top’
Posted in Everything by VoidTools, Keyboards and Keyboard Shortcuts, Power User, Windows | Leave a Comment »
Posted by jpluimers on 2017/03/13
I hadn’t done a lot with pfSense in the past, which I regret a bit since I discovered this really cool feature: Sniffers, Packet Capture – PFSenseDocs.
The coolness isn’t so much that you can capture packets, but that it’s compatible with tcpdump and Wireshark (which has become available natively for Mac like 2 years ago).
Which means that you can download captures and open them in Wireshark.
So it’s as easy as 1,2,3:
–jeroen
Posted in *nix, *nix-tools, Internet, Monitoring, pfSense, Power User, routers, tcpdump, Wireshark | Leave a Comment »
Posted by jpluimers on 2017/03/03
Apple TV needs iTunes
A while ago, my model A1469 3rd generation Apple TV had a slowly blinking white light but nothing displayed over HDMI any more, so I searched for Apple TV slow blinking white and
Reading Restoring your Apple TV (when its white light is flashing) | Comics and gadgets, I opted for the first option: a soft-restart of the Apple TV. To do that you have to press menu+down on the Apple Remote at the same time for 5+ seconds, then wait for the Apple TV to restart. That initially did show an image over HDMI which later disappeared. I didn’t get the image at first as I thought it was looking for iTunes media over USB (like from an iPhone or iPad), so I waited for a time-out to occur.
After a while that image disappeared and the Apple TV white LED started rapidly flashing. Not good.
Later I found the image was portraying a USB cable not having a connection to an iTunes logo and some dark grey text on a black background pointing to support.apple.com/appletv/restore.
I didn’t see that at first as the room was a bit brightly lit since we had a lot of sun that day so this non-descriptive image with grey on black UX worked really well.
Conclusion: I had to restore the Apple TV which I thought would be straight-forward as it had been connected to my iCloud account.
Posted in Apple, Apple TV, iOS, Keyboards and Keyboard Shortcuts, Power User | Leave a Comment »
Posted by jpluimers on 2017/02/27
There are many single-board computers on the OpenSuSE hardware-compatibility list (HCL), including:
A lot of them have ready to go images, often for Tumbleweed, however none of the pages explain the below image differences hence the one-line for each:
Since I wanted a headless system, JeOS was what I needed.
As it wasn’t available for my ODroid C1+ but was for my Raspberry Pi 2 and as my main machine is a 15″ Retina MacBook Pro Late 2013 [WayBack] below are the steps I used to get the image working.
The below Raspberry Pi2 link will redirect to the correct image in the generic download directory http://download.opensuse.org/repositories/devel:/ARM:/Factory:/Contrib:/RaspberryPi2/images/
For other Raspberry Pi versions, you can find them here:
I installed on a 8 gigabyte SD card that revealed itself as /dev/disk1 using this diskutil command (via osx – List all devices connected, lsblk for Mac OS X – Ask Different [WayBack])
diskutil list
So this wrote the image to SD card in a sudo su - prompt:
targetDevice="disk2"
unxz --keep openSUSE-Tumbleweed-ARM-JeOS-raspberrypi2.armv7l-2016.08.20-Build2.1.raw.xz; \
diskutil umount "/dev/${targetDevice}s1"; \
dd bs=1m of="/dev/r${targetDevice}" if=openSUSE-Tumbleweed-ARM-JeOS-raspberrypi2.armv7l-2016.08.20-Build2.1.raw; \
sync; \
diskutil list; \
diskutil eject "/dev/${targetDevice}"
or if you want to select which image to “burn”:
targetDevice="disk2"
imageName="openSUSE-Tumbleweed-ARM-JeOS-raspberrypi2.armv7l-2016.08.20-Build2.1.raw"
imageName="openSUSE-Tumbleweed-ARM-JeOS-raspberrypi.armv6l-2016.11.23-Build2.22.raw"
imageName="openSUSE-Tumbleweed-ARM-JeOS-raspberrypi3.aarch64-2017.01.12-Build3.2.raw"
unxz --keep ${imageName}.xz; \
diskutil umount "/dev/${targetDevice}s1"; \
dd bs=1m of="/dev/r${targetDevice}" if=${imageName}; \
sync; \
diskutil list; \
diskutil eject "/dev/${targetDevice}"
A few notes:
Posted in *nix, Development, Hardware, Hardware Development, Linux, Odroid, openSuSE, Power User, Raspberry Pi, Single-Board Computers, SuSE Linux, Tumbleweed | 1 Comment »
Posted by jpluimers on 2017/01/26
Source: Inverse Path – USB armory
usbarmory – USB armory: open source flash-drive-sized computer
Roughly EUR 100 excluding, SD card, host adapter and enclousure.
Source: inversepath/usbarmory: USB armory: open source flash-drive-sized computer
Since I was talking about security anyway…. this is a nice toy for breaking open laptops or desktops when the administrator forbade the installation of software, or you want software on it executed. This is often the case with company devices, e.g. the laptops which are supplied by banks to their 3rd party suppliers. Outsourcing is cool, remember?
This is a computer on a stick which can run a Linux kernel. In combination with some USB gadget kernel modules, it can be configured to authenticate itself as any device. All you need to do is plug it in, and iterate by brute force through the device identifiers until you hit one which is accepted to be used. Store the statically linked software you want to install or run on the stick beforehand, and here you go. So if you ever need a SSH client on a “secure” Windows laptop… putty.exe FTW.
–jeroen
Posted in *nix, Hardware, Pen Testing, Power User, Security, USB | Leave a Comment »
Posted by jpluimers on 2017/01/23
This was a tad difficult to find as I searched for “Convert Fritz!Box to Switch” instead of “Convert Fritz!Box to Access Point”.
Since I had an old Fritz!Box 7360 lying around (from my ADSL era) and wanted to extend the cabled LAN for my brothers Fritz!Box 7490 with some low-bandwidth devices (max 100 megabit/second) I searched for Switch. My bad.
Oh I had to factory reset it as well as I forgot the management credentials. The AVM help on this is cumbersome: Loading the FRITZ!Box factory settings | FRITZ!Box 7360 | AVM International but the xs4all help includes a web-reset procedure as part of Internet: Reset procedures van mijn FRITZ!Box 7360 which translates to:
Forgot your password?
Restore Factory Settings
Anyway: with the above steps it becomes a Managed Switch (and if you don’t disable WiFi: Access Point too) that uses the primary internet connection as DHCP server (so it gets an IP address itself as well which means you can manage it).
Posted in ADSL, Fritz!, Fritz!Box, Internet, Power User | Leave a Comment »
Posted by jpluimers on 2017/01/20
For my Link Archive via linux port forwarding to external ip – Google Search:
Need to look at this more closely, but it looks like you need PREROUTING, FORWARD and POSTROUTING and two NATs (DNAT and SNAT), as this graph from Port Forwarding Using iptables – SysTutorials shows:
PACKET IN
|
PREROUTING--[routing]-->--FORWARD-->--POSTROUTING-->--OUT
- nat (dst) | - filter - nat (src)
| |
| |
INPUT OUTPUT
- filter - nat (dst)
| - filter
| |
`----->-----[app]----->------'
–jeroen
Posted in *nix, *nix-tools, Internet, Internet protocol suite, iptables, Linux, openSuSE, Power User, routers, SuSE Linux, TCP | Leave a Comment »
Posted by jpluimers on 2017/01/13
In this tutorial you will learn how to configure pfSense to load balance and fail over traffic from a LAN to multiple Internet connections (WANs) i.e.… – Joe C. Hecht – Google+
Source: In this tutorial you will learn how to configure pfSense to load balance and…
Posted in Internet, pfSense, Power User, routers | Leave a Comment »
Posted by jpluimers on 2016/12/05
Time after time issues pop up related to MAC addresses that start with a4 or a 6.
[WayBack] nanog: Forwarding issues related to MACs starting with a 4 or a 6 (Was: [c-nsp] Wierd MPLS/VPLS issue)
The underlying issue has to do with switches interpreting too much information of (un)encrypted traffic and dropping them because they wrongly think it’s plain ethernet traffic they need to handle.
MAC addresses starting with a 4 or 6 have have a common bit pattern (likekly that fails with 12 and 14 as well) that cause failure in certain network equipment that’s hard to trace as there is limited.
[WayBack] Christian Vogel – Google+ (Physics, Electronics, Software) explains this way better at [WayBack] When your MAC address starts with 4 or 6, weird things can happen and it’s not always fixable… – Kristian Köhntopp – Google+:
Posted in Internet, Network-and-equipment, Power User, routers, VPN | Leave a Comment »
Posted by jpluimers on 2016/12/02
I had a few friends ask if they could buy a cheap travel router that protects their internet activity as they travel around the globe. So my criteria:
- Cheap (< USD 20)
- Portable (pocket size)
Source: [WayBack] Make a cheap TOR anonymizer — BYTESEC Labs Inc
via: [WayBack] hmmm – Joe C. Hecht – Google+
–jeroen
Posted in Network-and-equipment, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 