Osiblog

I was looking for a smoother Munin theme and found this one. This theme has a cleaner design than the default Munin theme and comes with an icon for the iOS springboard.

Screenshot from Munin theme

general

The HiCalc HD Pro calculator app is currently free and supports a wide variety of functions including statistical en equation solving.

HiCalc HD PRO screenshot

Software iOS, ipad

Calculator Easy HD is a free calculator app for the iPhone and iPad which also lists your previous calculations.

Screenshot in landscape mode

general iOS, ipad

I have several delegated calendars setup in my Google account. Unfortunately my iPad only syncs with my primary calendar and there is no way to select my delegated calendars. Then I found this page. Which describes how to solve this problem. The answer is simple just visit https://www.google.com/calendar/iphoneselect and check the calendars you want to sync. Restart the calendar app and all calendars are synced. You might have to check them in the view options when they do not show up.

general calendar, google, ipad

When I used the BlackBerry simulator I was unable to connect to internet from the build-in browser. In order to enable internet access, follow the steps below.

BB menu -> Manage Connections -> Setup Wifi network

The wifi wizard starts.

Choose Next ->Manually Add Network

Enter “Default WLAN Network” as SSID and choose Add

Choose “No security” and pick Connect

Pick Save (do not choose for connect, since this fails).

Pick Next

Done!

Update 16-05-2011:
It turns out that the method described above also works when a BlackBerry prompts for a PIN code in an open network. Just enter the name (SSID) of the open network as the network name and your BlackBerry can connect to an open network without entering a PIN code.

general blackberry

I have set up a PPTP VPN client on my Ubuntu server. Unfortunately when the server reboots, the connection goes down and stays down. After a long search I found a solution on this website. It is simple bash script, which checks if the VPN server (which had the VPN ip of 10.8.3.0) is pingable. If not it restarts the PPTP VPN connection.

ping -c3 10.8.3.0 > pingreport
result=`grep "0 received" pingreport`
truncresult="`echo "$result" | sed 's/^\(.................................\).*$/\1/'`"
if [[ $truncresult == "3 packets transmitted, 0 received" ]]; then
pon company-vpn
fi

I execute this script every five minutes, by editing the /etc/crontab file and added the following rule:

*/5 *   * * *   root    bash /root/vpn-check.sh

Linux pptp, Ubuntu, ubuntu server, VPN

Imageoptim is a free tool for OSX which optimises JPG, PNG and GIF images for the web. This tool is a lossless image compressor. In my test it reduced the image size by 60% on average.

Software OSX

Munin is a networked server monitoring tool written in Perl. Munin consists of two parts: the Munin server and Munin nodes. The nodes are running on the servers we want to monitor, while the server periodically (5 minutes by default) fetches the data from all of the registered nodes. The server is a able to build charts from this node data, which gives insight in the cpu usage, disk usage, network load and more.

The Munin team has a live demo of Munin, which can be viewed at http://munin.ping.uio.no/ I have installed both the Munin node and server on my Ubuntu server machine, and added nodes of other servers as well.

Munin screenshot with custom theme

general munin, server, Ubuntu, ubuntu server

This tutorial describes the installation process of MediaWiki on Ubuntu server. We assume you have already MySQL and Apache installed.

First we start installing the mediawiki software:

$ sudo apt-get install mediawiki

Read more…

Linux, Software howto, mediawiki, tutorial, Ubuntu

I upload a lot of pictures to Flickr. I was looking for a tool to backup all the pictures I have uploaded during the year. Although there are several tools available, only one succeeded in downloading my entire collection (about 500 photos) without any problems. I tried a python tool, which had a crash during downloading. Antoher Java tool failed as well. Finally I tried Bulckr, which is an Adobe Air tool. It works pretty straightforward and downloaded all the pictures with only one timeout (which it detects and let you resume your download by clicking a button).

Bulckr screenshot

general flickr