linportal's blog

Configuring Firefox to use Transmission-Daemon for Magnet links

Create a shell script /usr/local/bin/magnet containing:

/usr/bin/transmission-remote --add "$1"

chmod +x /usr/local/bin/magnet

In Firefox go to about:config

Right-click on any link and select "New->Boolean".

Boolean name: network.protocol-handler.expose.magnet
Boolean value: false

Right-click on any link and select "New->Boolean"

Boolean name: network.protocol-handler.handler.external.magnet
Boolean value: true

Restart Firefox

How to shut up Python deprecation warnings

I don't know why Python applications are so verbose with deprecation warnings. Either the apps should be fixed, or the system should be configured to not emit those pesky warnings in production. Since the former is not happening, I found a way to do the latter. So, if you are sick and tired of warnings like this:

/usr/lib/pymodules/python2.6/rdiff_backup/ DeprecationWarning: os.popen2 is deprecated. Use the subprocess module.
stdin, stdout = os.popen2(remote_cmd)

edit your /etc/python2.6/ file and append these two lines at the very end of the file:

import warnings
warnings.simplefilter("ignore", DeprecationWarning)

Of course, look for elsewhere if it's not in the same directory as on my system (check /etc/pythonX.Y, /usr/lib/pythonX.Y and /usr/lib/pythonX.Y/site-packages directories). The correct location obviously depends on the Python version.

Mounting samba share with space character from /etc/fstab

If you have a windows share with a space character in it's name, e.g. something like \\server\my share, to properly mount it from /etc/fstab you need to use the octal code instead of a space character. Otherwise parsing /etc/fstab would produce an error, because space character is a delimiter.

The octal code for space character is \040 (don't forget the leading zero!), so you'd put //server/my\040share in the /etc/fstab for the example above.

Key sequence to kill the X server (Control + Alt + Backspace)

Current default for X servers as shipped in various distributions is to not enable the traditional Ctrl-Alt-Backspace key combination to kill the X server. If you would like to re-enable this feature, you may do so in your desktop's Keyboard Preferences application. You may also enable it for the current session using the command "setxkbmap -option terminate:ctrl_alt_bksp".

Full screen flash not working under compiz?

If you have trouble maximizing those YouTube videos when run under compiz-fusion, here's what you can do to fix it.

Go to CompizConfigSettingsManager, choose General Options and unclick 'Unredirect Fullscreen Windows' option under General tab. Then click Back and select 'Workarounds'. Turn on 'Legacy Fullscreen Support'. Of course, 'Workarounds' plugin must be enabled on the front page for this to come in effect.

And that should be it!

Now try maximizing flash videos again and report you success below.

Running Nvidia display drivers with X.Org 7.3

This morning, hardworking Debian developers pushed the remaining pieces of the brand new X.Org 7.3 to Debian sid (unstable) distribution. And it must be said, a well done job!

ii  x11-apps            7.3+1      X applications
ii  x11-common          1:7.3+2    X Window System (X.Org)
ii  x11-session-utils   7.3+1      X session utilities
ii  x11-utils           7.3+1      X11 utilities
ii  x11-xfs-utils       7.3+1      X font server utilities
ii  x11-xkb-utils       7.3+1      X11 XKB utilities
ii  x11-xserver-utils   7.3+1      X server utilities
ii  xbase-clients       1:7.3+2    miscellaneous X clients - metapackage
ii  xorg                1:7.3+2    X.Org X Window System
ii  xorg-dev            1:7.3+2    the X.Org X Window System development
ii  xserver-xorg        1:7.3+2    the X.Org X server
ii  xutils              1:7.3+2    X Window System utility programs

Nvidia Linux driver 1.0-9639, 1.0-7185 and Linux kernel 2.6.23

Referencing the post Nvidia Linux driver 100.14.11 and Linux kernel 2.6.23. Here I have attached the patches for the older versions of Nvidia drivers. The procedure to follow is the same as described in the above document.

Building Debian FreeRadius package with EAP/TLS/TTLS/PEAP support

Debian's FreeRadius package is built without support for EAP/TLS/TTLS/PEAP because of the licensing problems of the OpenSSL library. But, if you want to implement 802.1x network authentication with strong security, you'll need it. This is a short tutorial that explains how to build Debian (sid aka unstable) package linked to libssl and with EAP/TLS/TTLS/PEAP support compiled in.

First, download the newest source package (orig.tar.gz), Debian diffs (diff.gz) and description file (dsc) from the freeradius package page. The version I tested the procedure with is 1.1.7-1.

Renegotiate ethernet card link speed / duplex

Due to software or hardware (network switch or ethernet card) error it may be possible that you need to restart auto-negotiation on the ethernet device. Here's how to do it:

mii-tool -r eth0


ethtool -r eth0

Then check the kernel log to see what happens:

% dmesg
eth0: link down
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1

Thanks for this tip goes to Vivek.

Nvidia Linux driver 100.14.11 and Linux kernel 2.6.23

Well, they're not working together. Unless you're not willing to tweak it a little bit. So, out of the box, you won't be able to test brand new Linux CFS scheduler, merged in the 2.6.23-rc1 release, if you drive your Nvidia card with the proprietary driver. I guess that's what we get for running binary drivers.

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