If multiple domains (or subdomains) point to the same content, this content might be considered as duplicate content by search engine providers (e.g., Google, Bing, Yahoo!). To prevent this, you should choose one (sub)domain and redirect all other (sub)domains to the chosen one. Imagine you have example.com, www.example.com, example.org and www.example.org. Now you decide to redirect all requests to www.example.org:

RewriteEngine On
RewriteCond %{http_host} !^www\.example\.org [NC]
RewriteRule ^(.*)$ http://www.example.org/$1 [L,R=301]

The nice thing about this rule is, that you don’t need to specify all available domains. Thus, it also works with wildcard subdomains.

If a folder should not be accessed by anyone (e.g., because its content is only read by server-side scripts), it is highly recommended that you block all access attempts:

Order deny,allow
Deny from all

The drivers for a lot of their printers (lpr drivers and cups-wrappers) are now available in the multiverse repositories.

Just install the corresponding brother-lpr-drivers-* and brother-cups-wrapper-* packages and you can use your favorite CUPS frontend to setup your printer.

Below you find a list of the packages and the drivers they include.

brother-lpr-drivers-ac / brother-cups-wrapper-ac:
HL-4040CN, HL-4050CDN, HL-4070CDW, MFC-9440CN, MFC-9840CDW, DCP-9040CN and DCP-9045CDN

brother-lpr-drivers-bh7 / brother-cups-wrapper-bh7:
DCP-130C, DCP-330C, DCP-540CN, DCP-750CW, FAX-1860C, FAX-1960C, FAX-2480C, FAX-2580C, MFC-240C, MFC-3360C, MFC-440CN, MFC-5460CN, MFC-5860CN, MFC-660CN, MFC-665CW and MFC-845CW

brother-lpr-drivers-extra / brother-cups-wrapper-extra:
FAX-1815C, FAX-1820C, FAX-1835C, FAX-1840C, FAX-1920CN, FAX-1940CN, FAX-2440C, MFC-210C, MFC-3220C, MFC-3240C, MFC-3320CN, MFC-3340CN, MFC-3420C, MFC-3820CN, MFC-410CN, MFC-420CN, MFC-5440CN, MFC-5840CN, MFC-620CN, DCP-110C, DCP-310CN, DCP-560CN, DCP-770CW, DCP-350C, DCP-353C, MFC-465CN, MFC-680CN, MFC-685CW, MFC-885CW, MFC-230C, MFC-235C, MFC-260C, DCP-135C, DCP-150C and DCP-153C

brother-lpr-drivers-laser / brother-cups-wrapper-laser:
DCP-7020, DCP-7025, DCP-8060, DCP-8065DN, FAX-2820, FAX-2920, HL-2030, HL-2040, HL-2070N, HL-5240, HL-5250DN, HL-5270DN, HL-5280DW, MFC-7220, MFC-7225N, MFC-7420, MFC-7820N, MFC-8460N, MFC-8660DN, MFC-8860DN and MFC-8870DW

brother-lpr-drivers-laser1 / brother-cups-wrapper-laser1:
DCP-1000, DCP-1400, DCP-8020, DCP-8025D, DCP-8040, DCP-8045D, FAX-2850, FAX-2900, FAX-3800, FAX-4100, FAX-4750e, FAX-5750e, HL-1030, HL-1230, HL-1240, HL-1250, HL-1270N, HL-1430, HL-1440, HL-1450, HL-1470N, HL-1650, HL-1670N, HL-1850, HL-1870N, HL-5030, HL-5040, HL-5050, HL-5070N, HL-5130, HL-5140, HL-5150D, HL-5170DN, HL-6050, HL-6050D, MFC-4800, MFC-6800, MFC-8420, MFC-8440, MFC-8500, MFC-8820D, MFC-8840D, MFC-9030, MFC-9070, MFC-9160, MFC-9180, MFC-9660, MFC-9700, MFC-9760, MFC-9800, MFC-9860 and MFC-9880

brother-lpr-drivers-mfc9420cn / brother-cups-wrapper-mfc9420cn:
MFC-9420CN

For the models marked with green I can confirm, that the drivers work like a charm.

• Intel Core 2 Duo T5870 (2.0 GHz, 800 MHz, 2 MB)
• 15.4″ Widescreen Display WXGA+
• 3 GB 667 MHz DDR2 Dual Channel RAM
• 256 MB NVIDIA GeForce 8400M GS
• Intel Next-Gen Wireless-N Mini-PCI-Card
• 1.3 MP built-in Webcam

Installing Ubuntu Linux 8.04 LTS (codenamed Hardy Heron) wasn’t really that though, but some issues arised.

First of all, the outputs of lspci:
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation GeForce 8400M GS (rev a1)
06:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
08:05.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
08:05.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 02)
08:05.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01)

and lsusb:
Bus 007 Device 001: ID 0000:0000
Bus 006 Device 002: ID 0c45:63e0 Microdia
Bus 006 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

What I already tested and works: Graphics (after installing the propietary NVIDIA driver using those fancy restricted drivers manager), Webcam, Card reader, WLAN (haven’t tested 802.11n yet, but will do this in the future), Sound, Multimedia buttons.

What didn’t worked: Ethernet card.

Everthing not mentioned hasn’t been tested yet or isn’t worth mentioning.

Fixing the built-in Realtek network card

As the built-in network card currently doesn’t work with the r8169 driver in 2.6.24 kernel, you’ll have to built the r8168 driver provided by Realtek. After some research using ubuntuforums.org ([1] and [2]) and linuxquestions.org, I managed to fix some arising issues. Currently, you have to patch the driver provided by Realtek, because it isn’t working with 2.6.24′s network API. If you haven’t already done so, you have to install the build-essential package. Here’s how it works:

1. Download the latest driver for Linux kernel 2.6.x from the Realtek homepage.
2. Unpack it: tar xvf r8168-8.006.00.tar.bz2
3. Move it to /usr/src: sudo mv r8168-8.006.00 /usr/src/
4. Download the patch file which energymomentum posted at ubuntuforums.org
5. Move it to /usr/src/r8168-8.006.00/src: sudo mv r8168-8.006.00.hardy.diff /usr/r8168-8.006.00/src/
6. cd /usr/src/r8168-8.006.00/src
7. Apply the patch file: patch < r8168-8.006.00.hardy.diff
8. cd ..
9. Build the module: sudo make clean modules
10. Install the module: sudo make install
11. Generate module dependencies: sudo depmod -a
12. Load the module: sudo insmod ./src/r8168.ko
13. Blacklist the old driver: sudo sh -c 'echo "blacklist r8169" >> /etc/modprobe.d/blacklist-network'
14. Make changes permanent: sudo update-initramfs -u
15. Basically that's it, after a reboot you're ethernet card should be working

That's it for now, if new issues arise, I will update this post.

You’ll find that homepage here: Martin Henze at RWTH Aachen University.

You can view some pictures of my trip to the USA in my gallery, where you’ll also find a bunch of pictures of other places.

Hopefully I’ll update this page a bit more often in the future, but who knows…

• My formula sheet
• A collection of old exams (incl. sample solutions) on one DIN-A4 sheet

As usual, you can find all downloads at s-inf, too.

sudo -s

Create a new folder and a new file with gedit:

mkdir /usr/share/hal/fdi/preprobe/95userpolicy
gedit /usr/share/hal/fdi/preprobe/95userpolicy/10ignore-disks.fdi

Copy the following to the file, create a new <match>- block for each partition you want to block:

<?xml version="1.0" encoding="UTF-8"?>
<deviceinfo version="0.2">
  <device>
    <match key="block.device" string="/dev/sda1">
      <merge key="info.ignore" type="bool">true</merge>
    </match>
  </device>
</deviceinfo>

It’s also possible to block a whole hard disk, e.g. /dev/sdb. Now save the file and restart HAL and DBUS:

/etc/init.d/dbus restart

That’s it, credits go to clausi at ubuntuusers.de and vtel57 at ubuntuforums.org.

Note: This instructions only apply if you are using Ubuntu Linux 7.10 or older. If you are using Ubuntu Linux 8.04 (Hardy Heron) or newer, please use the new instructions, which are much easier.

First, we need to download the following files:

• Brother CUPS wrapper driver for HL-2070N (Debian)
• Brother LPR driver for HL-2070N (Debian)

Simply install both packages in the above order using gdebi (simply double-click on them) or dpkg -i packagename.deb.

Now you should already have your HL-2070N listed in the printer list. Go to printer properties, and choose UNIX-printer (LPD) as network-printer (filed under connection). Now you just have to enter your printer’s IP (it’s handy to configure the printer with a static IP) and your printer should print the test page just fine.