Archive for the ‘Linux’ Category

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Problems connecting with jconsole to linux jvm

In: Java|Linux|Software|Windows

14 Mar 2010

Lately I had problems configuring the JMX remote management for tomcat servers running on Ubuntu linux servers. After configuring everything necessary like the com.sun.management.jmxremote JVM parameters and the password files I still got connection errors when trying to connect from my Windows system to the server via jconsole. I found this bug entry for the [...]

Certificate issues with openjdk under Debian

In: Linux|Security|Software

15 Jun 2009

Currently we are developing the connection to mPAY to handle payments for our online time tracking application timr.com. mPAY provides a https URL that takes the payment parameters and returns if the transaction was successful. When testing the call to this URL from our server we always got the following error message: java.security.InvalidAlgorithmParameterException: the trustAnchors [...]

Debian logwatch mailto settings

In: Linux|Software

25 May 2009

I am used to configuring logwatch on my linux servers to get information about what is going on with my systems (although I do not look into the logwatch mails every day). Lately I had some problems configuring my email adress on the Debian and Ubuntu systems. The logwatch process sent the mail to my [...]

Giving Ubuntu 9.04 a try

In: Linux|Software|Windows

17 May 2009

I am using Windows for most of my daily work, currently Windows Vista and I a quite happy with it. Although currently I am mainly developing Java (web) applications which could be done on Mac OS or Linux too there are some reasons for that. The biggest one is that I using (loving) BlackBerry devices [...]

Jungledisk and WebDAV

In: Linux|Software

29 Apr 2009

I wrote about the troubles I had to mount the Amazon storage on my virtual server from Hosteurope. Yesterday I stumbled over the twitter account of Jungledisk and I asked them for help. The gave me the tip to use WebDAV for uploading to my storage. So today I gave it a try and installed [...]

Jungledisk and Hosteurope vserver

In: Linux|Security|Software

27 Apr 2009

I am using jungledisk for about half a year now to backup my Ubuntu home server online (photos, mp3, …). Today I tried to configure the virtual server this blog is running on to backup my blog with jungledisk – but I had no luck. Jungledisk uses fuse to mount the web service storage and [...]

About time

In: Linux

14 Apr 2009

I updated my virtual linux box today because I had to debug my application. I noticed that the time/date was not correct and so I searched the web for how to configure the time on my Ubuntu 8.10. I found that there was already ntpdate installed and a script that is every time when a [...]

Problem with network of vmware appliance

In: Linux

1 Dec 2008

Today I updated my vmware test environment by downloading a new Ubuntu 8.10 server appliance. After extracting the zip file and staring the server inside my vmware player version 2.5.1 there was no eth0 device available. I tried to start it manually with ifup but that did not work. A quick google research brought up [...]

Ubuntu server and vnc

In: Linux

3 Oct 2008

Yesterday I installed a vnc server on my Ubuntu 8.04 LTS server. I did this because I want to run some GUI applications like a BitTorrent client on it. The last time I installed a vnc server on a machine without a window manager was back when I was using Redhat. So I did a [...]

Network problems with Linux in VMWare Server

In: Linux|Windows

16 Jul 2008

Lately I had troubles with my Debian Etch installation running in a VMWare server on a Windows 2003 SBS. I had to reboot the guest system multiple times until the eth0 network interface could establish a connection. It seems that this hat something to do with the system choosing the wrong of to network modules. [...]


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