the Apache web server on openSUSE

SDB:Apache installation – openSUSE old-en.opensuse.org/Apache_Quickstart_HOWTO – this is actually the link you may find, but it does not work any longer: en.opensuse.org/Apache_Quickstart_HOWTO httpd.apache.org www.swerdna.net.au/suseapache.html – may be a little outdated, because in only refers to <=11.0 where to place your HTML documents: /srv/www/htdocs/ – the info.php, that the “Head First jQuery” book [link] mentions, goes there as well

browsers and their developer tools

(from Head First jQuery) Google Chrome: http://code.google.com/chrome/devtools/docs/overview.html Firefox’s Firebug: http://getfirebug.com/wiki/index.php/FAQ Safari: http://www.apple.com/safari/features.html#developer Internet Explorer 8: http://msdn.microsoft.com/en-us/library/dd565628(v=vs.85).aspx Internet Explorer 9: http://msdn.microsoft.com/en-us/ie/aa740478 Opera’s Dragonfly: http://www.opera.com/dragonfly/

upgrading my ASUS portable PC to openSUSE-12.1

During the installation (on system “a“) itself the only problem I faced was, that fetchmsttfonts had to get skipped. My grub bootloader problem: The first relevant problem then: grub does not boot the system, complaining like this: kernel …Error 22: No such partitionPress any key to continue… How to recover? I searched the web for… Continue reading upgrading my ASUS portable PC to openSUSE-12.1

how to transfer all modules from one perlbrew environment to another?

I mean something like rvm’s migrate resp. upgrade. Looks like list-modules helps me there. I had to upgrade somehow, but the published path didn’t work for me. After I removed $HOME/.perlbrew and I did a fresh installation, I was successfully upgraded. Now this runs smoothly: $ perlbrew list-modules Right now I am running a $ perlbrew upgrade-perl… Continue reading how to transfer all modules from one perlbrew environment to another?

[scraping related] how does a browser tell a web-server, that it doesn’t want JavaScript?

Rephrasing … If I tell a browser to not “accept” JavaScript, what does the browser do with that directive? is that related to the User-Agent or Accept HTTP header fields? does that “just” mean, that the browser doesn’t execute the JavaScript bits? (where to disable JavaScript in browsers? [link]) Does Michael Schrenk talk about this… Continue reading [scraping related] how does a browser tell a web-server, that it doesn’t want JavaScript?

X11 with nvidia proprietary drivers on openSUSE-12.1 in conflict kernel module

Yesterday I installed nvidia’s proprietary drivers from within yast from the respective community repository, and restarted rcxdm thereafter. No, I didn’t reboot the machine then. Everything seemed fine then. This morning I booted the machine after its nightly sleep, and I launched this: root# rcxdm start And that failed, saying this: [   317.548] (EE)… Continue reading X11 with nvidia proprietary drivers on openSUSE-12.1 in conflict kernel module

DRBD (Distributed Replicated Block Device) is a distributed storage system for the GNU/Linux platform

I am having a look into this interesting technology. en.wikipedia.org/wiki/DRBD the official website: DRBD.org distributed storage system “DRBD layers logical block devices (…) over existing local block devices on participating cluster nodes. … and may be used both below and on top of the Linux LVM stack. …” failover, failback, switchover, split brain …