Secure wiping your harddisk
This is a little FAQ about securely wiping your harddisk. Why is deleting the files not enough ( e.g. rm -rf *) Because this removes only the meta-data to find the data, but the data itself is still there. It could be …
All posts
Securing ejabberd on Debian Wheezy (7.0) : Bind epmd to localhost (127.0.0.1)
Ejabberd is a nice and (in theory) easy to setup jabber-server. However during setup I came across some WTF’s, I want to share. What is empd? epmd is a small name server used by Erlang programs when establishing …
Boosting Audio Output under Ubuntu Linux
I often had the problem when I wanted to watch a movie or listen to some audiofile and there was background noise I wanted to turn up the volume but it was already at 100% . I thought it should be possible to turn up the …
Encrypted off-site backup with ecryptfs
I was looking for a method to backup my data encrypted. Of course there exist plenty of possibilities, but most of them either encrypt a container or complete partition or seemed to be complicated to setup. I did not …
Importing tpc-h testdata into mongodb
As written in a former post, tpc-h offers an easy possiblity to generate various amounts of testdata. Download dbgen from this website and compile it: http://www.tpc.org/tpch/ now run ./dbgen -v -s 0.1 this should leave …
Importing large csv-files into mongodb
I wanted to import some dummy data into Mongo-DB to test the aggregation functions. I thought a nice source would be the tpc-h testdata which can generate arbitrary volumes of data from 1 GB to 100 GB. You can download …
Fix sluggish mouse in Ubuntu 12.04 LTS
For some time now i have the problem with my Dell Latitude E6510 Laptop that when I plug in a USB mouse the mouse is really slow and sluggish. Usually a reboot fixes this, but this is very inconvenient. Today I tried …
Ubuntu Upgrade to 12.04 LTS -> Libreoffice not working anymore
After a update session of several hours from Ubuntu 11.04 over 11.10 to 12.04 LTS I wanted to start using libreoffice, but it terminated right after start: $> loimpress terminate called after throwing an instance of …
Ubuntu 12.04 Gnome Classic Panel Right-Click does not work
As I was looking for this really a long time I am reposting it: http://askubuntu.com/questions/66414/how-to-add-panel-applets-to-classic-gnome-panel With the new gnome and using a classic-session you have to press META + …
Informatica 9.1 Installation could not start _AdminConsole
Installing Informatica with the installer was straightforward, but for some strange reason the adminconsole could not be started. Here the output I found in the Logfile: INFA_HOME/tomcat/logs/node.log 2012-08-08 …
Glassfish Directory Deployment (explode Ear)
Recently I was struggeling with glassfish directory deployment. Actually it is quite easy: unzip the ear-File (eg. example.ear) to a directory without .ear then go into this directory and unzip all war and jar files to …
Oracle exp export with full tns-string
Handling the oracle tns-names file can be a pain in the ass, especially if you don’t want to rely on it. For example you want a user to enter dynamically a connection with typical “host, port, sid, username, password” …