Ubuntu Hardy Heron on a Dell D820

Taking advantage of the free easter days I decided that between sleeping and cooking to also try the new Hardy Heron: not wanting to take any risks as in the painful Gutsy update I did a clean install on a different partition I tried the data migration option (gaim, evolution, firefox) but it only imported partial configuration and no data. I reverted to the old method...

April 27, 2008 · len

Which technology for your next webapp?

I am faced with a new web project for which I have to choose the technology to use it. Five years ago I was in the same position and I chose Tapestry. It proved to be a very good choice (1, 2, 3) and I am still able to modify and adapt that code without much difficulty. However now there are so many rich web interfaces which I cannot ignore....

April 8, 2008 · len

Book review #1

I am using jBPM for more than a year now and had my ups and downs with it. However the “Business Process Management with JBoss jBPM” by Matt Cumberlidge from packt was an interesting read. What the book does is to present the problems from a business analyst point of view and as doing such it presents a lot about the actual activities which take place in order to implement a BMP while following an implementation scenario stage by stage....

April 3, 2008 · len

Reverse VNC

Reverse VNC is one of the things which can make your day when it will help you connect to some NAT-ed machine. And so it has made my day yesterday, enough to decide to write about it. As everyone knows in direct VNC setup the client connects to the server which listen somewhere (usually on port 5900). If your vnc server is behind a network it might not be so easy to forward it’s vnc port to an external accessible machine so in this case reverse vnc might come in handy....

March 26, 2008 · len

Old/new I8000 #2

Wireless support Ok, now there is an Ubuntu system installed on the old Dell Inspiron 8000. Only one thing remains: some kind of wireless support. So, to this end, I have bought an Edimax wireless usb stick: EW-7318Ug. Gutsy default By default Gutsy loads the rt73usb module when the usb stick is inserted but I was not able to use this configuration in order to connect to the wireless network even if I have tried various things....

January 18, 2008 · len

Awstats

Awstats apt-get install awstats copy configuration files and cached data (old statistics) from old machine (the cached data will have to be copied once again exactly before moving to production) mkdir /var/cache/awstats ln -s /usr/share/doc/awstats/examples/awstats_buildstaticpages.pl apt-get install libgeo-ipfree-perl libgeo-ip-perl geoip-bin #(required for the geoip plugin for awstats) Build the stats files using: AWSTATS=/usr/lib/cgi-bin/awstats.pl $AWSTATS -config=nemesisit.ro -update awstats_buildstaticpages.pl -config=nemesisit.ro -dir=/data/www/data/analyze/awstats -awstatsprog=$AWSTATS Not so simple At first everything seemed ok and I was even dumb enough to not check the results in detail but after a while I realized they did not worked:...

January 13, 2008 · len

Asterisk (it’s a bug’s life)

Asterisk migration from 1.2.13 to 1.4.10. Edited to Asterisk (it’s a bug’s life after reverting to 1.2.26) To the end the asterisk installation was a bit disappointing as I lost a lot of time for a stupid issue. I started optimistic with a: apt-get install asterisk and then with the migration/merging of the configuration files. My configuration was as following: IAX clients connecting to asterisk which forwards calls to a sip box connected to a phone line....

January 8, 2008 · len

Web related

Install databases apt-get install postgresql mysql-server Migrate mysql databases # on the original machine mysqldump -A --opt --password='nemo' --allow-keywords --flush-logs --hex-blob \ --max_allowed_packet=16M --quote-names > mysql.all.dat # on the new machine mysql -u root --password=xxxx < mysql.all.dat Migrate postgresql databases # on the original machine su - postgres -c 'pg_dumpall' > pg_all.dat # on the new machine su - postgres -c 'psql' < pg_all.dat Of course you will have to migrate the databases again just before moving to production but this is to test all applications work ok....

December 30, 2007 · len

Qmail

Qmail based on qmailrocks install One of the things I missed most and disappointed me is the grave lack of a qmail package for Gutsy. I’m using Qmail since more than 5 years and I was always happy. This describes the installation based on the qmailrocks debian guide. All credits should go to the qmailrocks team. This only points some of the differences and problems I encountered on ubuntu. It’s mainly a list of commands as found on the qmailrocks site with some observations....

December 27, 2007 · len

What was killing my Gutsy

Since upgrading to Gutsy I could not notice that my computer was running hot and very hot all the time. But it was only when everything was so slow and hot that the Grub menu was appearing in slow motion that I decided to investigate the problem. First probable cause: cleaning the fan Unlike the I8600 the fan in the D820 is hard (see impossible) to reach. The official Dell guide shows you have to remove keyboard, hdd, display, CPU in order to reach the fan....

December 10, 2007 · len