There are some updates to the Projects area. I have included some (not all) electronic projects, which I have created over the last years. Most of the ideas for the different schematics where collected from the net. The PCBs where created utilizing the direct toner method. All schematics and PCBs where created with Kicad.
Please feel free to ask questions or leave comments.
today i‘ve updated to WP 3.4.2. Everything works fine so far.
today i’ve updated to WP 3.2.1. Hopefully everything works fine.
Yesterday was a bad day for me. I did a really stupid thing.
Never ever mount your (web)server with root permissions under nautilus (with SSH) in your local home directory and chmod at the same time recursively your home.
Guess what happens?! It will automatically chmod all your files on your (web)server too! Remember being root there.
So, to make a long story short: I had to reinstall the whole thing after the nice people from vlinux.de did a fresh install of the virtual server. Luckily i could backup all the important data like the mysql-database or the emails. Maybe this is a good chance to try a different web-server, like cherokee? Lets see, if i can get everything back running as it was before.
today i needed to re-install syscp, since it got lost from the last upgrade. By doing so, courier and postfix also got removed and instead dovecot was installes. Dovecot additionally fixed my login problems which i had with courier-imap and german umlauts. It also seems to be faster and lighter then courer?
Today, i decided to do some updates on the server. So i updated debian, wordpress and removed roundcube. The reason for removing roundcube was that i screwed the roundcube upgrade. Instead of roundcube, i installed Hastymail. So far, i like it a lot, since it is cleaner and faster then roundcube.
After struggling around with OpenSolaris 2008.11, i have decided to install some new shiny sort of ubuntu. So i downloaded the 64 bit version of linux mint version 5 (which is based on ubuntu hardy) and upgraded it to intrepid (and the corresponding felicia). I needed the 64 bit version not only due to the 6GB RAM in my computer, but also due to some performance gains, which i recognized especially in the calculation of large matrices.
Recently, after listening to a talk by Detlef Drewanz, i spent two whole days installing OpenSolaris 2008.11 from www.opensolaris.org. I was astonished that my NVidia card worked out of the box with all the fancy 3D stuff. But then i tried to get more involved into costumizing my installation. And there the trouble began:
The first installation on my work pc was fine but the user i created was not in the root group/profile. So i had to reboot into single user mode and change the /etc/user_attr file. Just add “;roles=root” to the user in order to achieve a “su -” and gain root rights. (I don’t know if this is a good idea from the security point of view?) Updates and other installations worked smoothly on that pc.
But why is the (default) user “jack” still existing after the installation? This, in my opinion, could lead to severe security problems?
But i also wanted to try out OpenSolaris at home. So i installed it on my home pc and found out, that my US-Robotics WLAN (zyd driver) adapter was NOT working. Drivers are avaible but needed to be compiled, which was not possible because of missing internet connection. (What was first the egg or the chicken?) So i thought i could connect a old router, with dd-wrt configured as client bridge, to the ethernet port. Full success under Linux. But full failure under OpenSolaris 2008.11, because the Attansic network device was also NOT working. Drivers are avaible here but i was unable (due to missing documention!) to install the binary modules. I also could not compile the source, due to missing development environment, which is due to the missing internet connection.
So, i’m giving up on OpenSolaris until the frustrated userbase is big enough, that Sun (and others) will create a usable OpenSolaris edition, which includes at least all possible network drivers and a good documentation project. A dvd edition of OpenSolaris with a whole development environment would also be great.
My lovely wife and I where on vacation to Berlin. There, we watched the great show “Glücksbringer” starring Dr. Eckart von Hirschhausen. If you get a chance to see him, go for it. It is really fun and contemplative at the same time.
I also bought a Asus eee PC 1000H, which came with Windows XP and a 160GB HardDisk. The battery life is really good. It kept up running more than 4 hours hard work. Back home, i installed Ubuntu (eee PC edition?) on that tiny little thing. Now i rellay have a toy to play with.