2018-01-21

David P. Reed talks about the invention (or better conception) of UDP

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http://www.reed.com/blog-dpr/?page_id=6
2017-11-14

Save GNU screen buffer to file

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To save the content of a screen in the "GNU screen" tool to a file, including the scrollback buffer, do the following: - Press C...
2017-10-27

Reset screen terminal after printing garbage

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When accidentally printing binary data in a terminal the state of the terminal gets messed up and one needs to reset it. When using GNU scre...
2016-07-09

rsyslogd does not log kernel messages to kern.log on Ubuntu 14.04.1 and OpenVZ

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Problem: Logging dropped packets using iptables LOG policy did not work. Well, the precise problem was, that the messages did not end up in ...
2015-11-08

Reset Toner on Brother MFC-9340CDW

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The original Brother toner cartridges for the Brother MFC-9340CDW printer runs out of toner after a programmed amount of toner usage which i...
2015-09-30

Copy multiple lines from Windows Command Prompt (cmd.exe)

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Holding down shift while pressing the right mouse button in the selected area copies the text and removes all linefeeds. This is not proper ...
2015-09-28

Visual Studio Intellisense: No focus on suggestions.

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For some reason sometime my Intellisense changes behavior every now and then (probably a Linux Keyboard shortcut entered in VS). To fix thi...
2015-09-17

Volumio autoplay with NAS (hack)

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Goal: Let Volumio 1.55 automatically start playing music automatically after the Raspberry Pi is powered on. The RPi is used completely head...
2015-05-07

Mac OS X telnet escape character on a german keyboard is Ctrl+Ü

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The title says it all. To get the telnet escape char (^]) in a Mac OS X Terminal, for example to quit telnet, you have to type Ctrl+Ü on a g...
2015-01-12

Update Samsung SSD 840 EVO firmware on Zotac Linux server (poor read performance of old files).

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My Samsung SSD 840 EVO was suffering from the apparently well known problem that 'old' files (files which have been written a long w...

Avoid hang of headless Zotac server on Ubuntu Linux reboot. (How to disable the graphical console for grub and the Linux kernel.)

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My Zotac server did not reboot without a monitor attached. Booting from power-up did work ok. The graphical console of grub seemed to be the...
2014-10-03

Copy files using rsync as root when the remote host does not allow root access and ssh is on a different port

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Step 1: Make sure you can execute commands as root on the remote host after logging in, without entering your password. For this there are...
2014-09-29

Ubuntu Linux: Show network throughput of network device eth0 etc in bytes: iftop -B

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By default iftop shows the bandwidth in Bit/s iftop To show the bandwidth in Bytes/s iftop -B
2014-08-11

Quit screen on german keyboard

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On a german keyboard the key binding for 'quit' on GNU screen does not seem to work for me (on Max OS X). But one can simply invoke ...

Save screen scrollback buffer to file

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Type: Ctrl-A : hardcopy -h file.txt For me this saves a lot of leading blank lines, but this is ok.
2014-08-03

Epic Rap Battle: Nerd vs. Geek

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2014-04-30

Strip PDF restrictions on Mac OS X without any special tools

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Assuming you have a PDF which has certain restrictions on it (for example you cannot edit the PDF using Preview in the usual way), but which...
2014-02-26

Mac OS X Lion: Scan for wireless networks

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Mac OS X Lion provides a command line tool to scan for wireless networks and print useful information about the networks: /System/Library/...
2014-02-17

Common bashrc settings

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There are my personal preferences. Your preferences may differ. alias e=jed alias mv="mv -i" alias cp="cp -i" alias r...
2014-02-07

Zotac Zbox ID18 Linux Server

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Zotac Zbox ID18 Samsung SSD 840 EVO 1TB 4GB RAM (SODIMM 1600) Ubuntu 13.10 Samsung SSD firmware update: The process is quite broken:...
2014-02-03

jed settings for indent=4, just spaces, line numbers on, sane brace insertion

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My favorite jed setting in $HOME/.jedrc USE_TABS = 0; LINENUMBERS = 2; % For the following to work you _must_ comment out any c_set_styl...
2013-03-29

Brother MFC-7440N Toner empty message

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Today I again got the 'toner empty' messages from my Brother MFC-7440N printer, for the second toner cartridge in this printers life...
2012-11-19

Mac OS X Desktop Background is gray

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One thing which bugged me was that every now and then my desktop background on my Mac Book Pro would turn plain medium gray at tome point. I...
1 Kommentar:
2012-06-14

Ubuntu 12.04: Boot Windows by default

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If you have a dual-boot system with Ubuntu Linux and Windows and you would like to boot Windows by default instead of Ubuntu you will find t...
2012-06-07

Viewing local manpages (files)

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When I have an unformatted manpage file like foo.1 I had always big trouble looking at it. man foo.1 and setting the man path using -M di...
2012-05-24

CPU Benchmark Intel Core i3-2350M vs Intel Core i7-2820QM

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Today I benchmarked my i3 Linux laptop vs my i7 MacBook. The results are what I expected, though I am quite happy about the performance of ...
2011-11-28

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I support this to the fullness: Copyright-restriction-free Christmas songs from the Musikpiraten e.V.: http://cdn.musikpiraten-ev.de/sing...
2011-09-13

Create Booklet PDF service (Mac OS X)

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I used this tool to print an A5 document as booklet with staples and four pages per sheet on Mac: http://www.macupdate.com/app/mac/21068/c...
2011-09-03

Mac OS X Lion Apple Mail: Search does not work

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After switching to Lion and importing all my old mails (actually all users) from the time machine backup I found that all old mails were the...
3 Kommentare:

Juniper SSL VPN SAM does not work on Mac OS X Lion (10.7)

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The reoccurring pattern continues: With every individual new Mac OS X version Apple kills existing VPN solutions for Max OS. This is at lea...