Quick install of Linux firmware htc_9271.fw for TP-LINK TLWN422G USB Wireless

Download firmware from here or search for newer.
http://wireless.kernel.org/download/htc_fw/1.3/htc_9271.fw

sudo cp htc_9271.fw /lib/firmware/.

Plug in device and do a dmesg to see if firmware is loaded.

Works great on airodump-ng, injection is super.\

lsusb

Bus 001 Device 004: ID 0cf3:1006 Atheros Communications, Inc. TP-Link TL-WN322G v3 / TL-WN422G v2 802.11g [Atheros AR9271]

Don’t waste time trying to compile anything else.

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Naultilus error in Truecrypt, not available

Error message using truecrypt in mint mate

When double clicking to open a volume from the Truycrypt gui, it calls nautilus.  Nautilus may not be installed on your system or having it running alongside caja is yuck.  There is no easy way to configure which file manager to be used in the preferences.

Since caja and nautilus have similar command line arguments a simple symbolic link is possible

sudo ln -s /usr/bin/caja /usr/bin/nautilus

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Notes for setting up openssh server in Linux for Public Key Authentication only

On Client Machine
ssh-keygen -t rsa -b 1024
check to see if permissions for id_rsa is rw——-

On Client Machine copy public key to the server:
scp id_rsa.pub server@192.168.0.1:/home/server

On Server Machine append public key to authorized_keys
cat id_rsa.pub >> ~/.ssh/authorized_keys

On Server Machine
sudo nano /etc/ssh/sshd_config
Edit these…
%h/.ssh/authorized_keys
PubkeyAuthentication yes
PermitRootLogin        no
PasswordAuthentication    no
UsePAM            no

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How to get file seach working properly in Linux Mate Mint

Whoever decided to cripple the default search (mate-search-tool) should be shot out of a cannon. 
The default search searched through a database which was only update once a day via cron.  This can be evidenced by performing a seach and noticing that little in the way of HDD access is occuring (it not really searching).  Also there is not ovbious way to change the search preferences like in MS windows.
Why perform a search when it does not turn up 100% correct results.  The trade over speed and accuracy is idiotic and pathetic, even the MS file search provides better results.

Here’s how to fix it.

open mateconf-editor and navigate to /apps/mate-search-tool/
check off; disable_quick_search, show_additional_options

now open mate-search-tool and take a look!  Looks nice and actually works, searches attached usb drives and the lot.

references:
man locate
man updatedb

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Creating a custom montitor configuration in mate Linux laptop that sitcks!

Scenario:
One laptop and one external monitor.
The laptop screen is the primary monitor (LVDS1)
The external monitor is the secondary monitor, orientated left (HDMI1)

Problem:
When the lid of the laptop is put down and then raised, the screens do not retain resolution settings and does either one of the following:
Laptop LCD off
Laptop LCD resolution wrong
External monitor rotated back to normal instead of orientated left.

Why this is happening:

It seems that there are too many things that can cause the screen resolution to change, including ACPI daemon, mate screensaver, lid.sh….  Too many cooks spoil the broth….

Solutions:
The manual solution is to unplug the HDMI cable and lower and raise the lid and then plug HDMI back in.  Not good enough.

Control freak Solution:
First get your screen setup right, use the ‘mate-display-properties’ to get your resolution and orientation correct.

Then open ‘mateconf-editor’ and tweak these settings:
apps/mate-power-manager/buttons  lid_ac = nothing
This will now prevent your system form changing your monitor settings on your behalf.

In a command line as a normal user excute the xrandr command.


Screen 0: minimum 320 x 200, current 2266 x 1440, maximum 8192 x 8192
LVDS1 connected 1366x768+0+327 (normal left inverted right x axis y axis) 344mm x 193mm
   1366x768       60.0*+
   1360x768       59.8     60.0 
   1024x768       60.0 
   800x600        60.3     56.2 
   640x480        59.9 
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 900x1440+1366+0 left (normal left inverted right x axis y axis) 410mm x 256mm
   1440x900       59.9*+   75.0 
   1280x1024      75.0     60.0 
   1280x960       60.0 
   1152x864       75.0 
   1024x768       75.1     70.1     60.0 
   832x624        74.6 
   800x600        72.2     75.0     60.3     56.2 
   640x480        72.8     75.0     66.7     60.0 
   720x400        70.1 
DP1 disconnected (normal left inverted right x axis y axis

translating from the xrandr output, a single line command to reset the screen to the desired dimension can be found:

xrandr –output LVDS1 –mode 1366×768 –rotate normal –output HDMI1 –mode 1440×900 –rotate left –right-of LVDS1

Now at this stage, depending on your situation, you can ‘hardcode’ you configuration into your system and make it stick OR crate a xrandr script that is manually activated.

looking in /etc/acpi/events/lidbtn shows that the script /etc/acpi/lid.sh
 is called when the lid button is activated

# /etc/acpi/events/lidbtn
# Called when the user closes or opens the lid

event=button[ /]lid
action=/etc/acpi/lid.sh

Having a look in the last line of /etc/acpi/lid.sh yeilds this:

[ -x /etc/acpi/local/lid.sh.post ] && /etc/acpi/local/lid.sh.post

This file lid.sh.post, if exists is excututed when the lis switch is activated.  Note that this file does not exist by default, so it needs to be made.

sudo mkdir /etc/acpi/local/
sudo touch lid.sh.post

add this to the file lid.sh.post

#! /bin/sh
xrandr --output LVDS1 --mode 1366x768 --rotate normal --pos 0x327 --output HDMI1 --mode 1440x900 --rotate left --pos 1366x0 --right-of LVDS1

then make it excutable:
sudo chmod +x lid.sh.post

Test to see if the lid closing and opening changes the screen setup.

References:
http://dosnlinux.wordpress.com/2007/01/19/xubuntu-acpi-the-lid/

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caja Mint 14 mounting /media/user udisks2

New behavior in Mint 14, flash drives, usb drives now mount in /media/$USER/$DEVICE

Caused by the udisks2.  Cannot remove udisks 2 easily because the rest of the system relies on it.

A lot of people are angry about the lack of documentation associated with this major change and rightfully so.

It is still not clearly illustrated why the writer of udisks2 has decided to change the way we look at out personal filesystems but there are a few options.

Fight it:
http://www.linuxmint-fr.org/forum/33-trucs-et-astuces/127919-udisks2retrouver-montage-dans-media-et-non-mediauser.html
(use google translate)
or
Create several symlinks each session, ugly…

Roll with it:
Disable caja from automounting, as it still defaults to /media/$DEVICE
run, mateconf-editor -> search for keys called automount -> disable automounting

Although there are changes to the filesystem, it still works.  Users have th be cautious upgrading their systems as torrent clients and VM on other partitions cannot be found straight away.

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Getting PDW working using Virtualbox with linux host, pager decoder, pocsag

PWD is a great program for decoding pager tones, but it works only on windows.

If you are using virtualbox for windows on a Linux Host and have the group permissions set correctly, then you can decode from the sound card.

Of course you will need a scanner with a discriminator tap installed.  Connected to the input of the soundcard.

Tested on Mint Mate.

First, run alsamixer and unmute your sound card input channel, so you can monitor the sound comming in.  In my case, go to Mic and press “M” key to unmute.  The sound sound should be heard on the pc speakers.

Then open up Virtualbox (version 4) and select settings to ensure Also host driver is selected.

Then on the windows client, ensure that mic is selected, and pager tones can be recorded on the client, use sound recorder.

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