Apple

What is the actual signal strength on my iPhone?

What is the actual signal strength on my iPhone? Well it probably has no useful link to the bars that you can see in the corner of your handset. Follow the below steps to change to a dB signal strength indicator.

  1. Dial *3001#12345#* on your iPhone then press Call.
  2. You’ll notice a signal strength indicator in the top left hand corner of your screen. You can toggle between signal strength bars and a number by simply taping on it. Press the home button to exit the app or if you would like the feature to be permanent, continue to the next step (you can reverse it later if you wish).
  3. Hold down on the Power button until you see the ‘slide to power off’ bar but don’t power off the device.
  4. Press down on the Home button until the app closes and you return to your home screen.

The closer your number is to zero, the stronger your signal is.

To undo this setting simply do the following.

  1. Dial *3001#12345#* on your iPhone then press Call.
  2. Press on your Home Button once

Accessing WiFi password history – Mac

In order to see the passwords used by your Mac, navigate to the applications folder and open other and then Keychain Access. Once open, select System inside the Keychain box and look for your network, double click the chosen network and tick the show password box. A dialogue box will then pop up and ask you to confirm you password and then may ask for an administrators details, complete each respectively and the password will then be shown.

Vi, commands at a glance – basic

Vi can often be daunting, so here is my Vi commands at a glace list.
Inserting:
r            Replace character under cursor with next typed character.
R           Replace characters under cursor until esc is pressed.
i            Insert before cursor.
a           Append after cursor.
A           Append at the end of the line.
O          Open line above cursor and enter append mode.
Deleting:
x            Delete character under cursor.
dd          Delete line under cursor.
dw         Delete word under cursor.
db          Delete word before cursor.
Write File:
:w          Saves the current file without quitting.
Exiting vi:
:wq        Exit and save changes.
:q!         Exit without saving.
 

Skypes little known in chat commands

If  found myself needing to give admin rights to everyone in my skype chat group but couldn’t find anything to support it in the GUI, then I descovered the Skype commands buried in their website. Below are some key entries, all of which are entered in the chat bar;

  • /kick [Skype Name] – removes the user from the group, they can later be added
  • /setrole [Skype Name] MASTER – sets the user stipulated as an aditional admin
  • /showmembers – displays a list of members and their role
  • /info – shows number of people in the chat and maximum number available

For more detailed information visit https://support.skype.com/en/faq/FA10042/what-are-chat-commands-and-roles?

Patching Shellshock – Mac

In the event that you discover your Mac is vulnerable to Shellshock, the following action should be taken.

To check whether you are vulnerable see Identifying Shellshock for full details on how to identify it.

Is my processor x32 or x64 bit – Mac OSX

Open the Applications folder or navigate to where Terminal is and allow it to run, then type uname -a and see what it produces. If you are presented with

.. /RELEASE_X86_64 x86_64

then you have a processor capable of both x32 and x64 bit operation, if however you are met with

.. /RELEASE_I386 i386

then you are limited to x32 bit functionality.