General Computer Tips

General computer Tips and Tricks

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Mesh Topology

Mesh Topology
Mesh Topology Advantage:

• It has multiple links, so if one route is blocked then other routes can be used for data communication.
• Each connection can have its own data load, so the traffic problem is eliminated.
• It ensures the data privacy or security, because every message travels along a dedicated link.
• Troubleshooting of this topology is easy as compared to other networks.
• Its performance is not affected with heavy load of data transmission.

Disadvantages

Mesh topology has the following disadvantages:

• It becomes very expensive because a large number of cabling and 110 ports are required.
• It is difficult to install.

Linux-Unix Keyboard Shortcut

CTRL + B	Moves the cursor backward one character.
CTRL + C	Cancels the currently running command.
CTRL + D	Logs out of the current session.
CTRL + F	Moves the cursor forward one character.
CTRL + H	Erase one character. Similar to pressing backspace.
CTRL + P	Paste previous line and/or lines.
CTRL + S	Stops all output on screen (XOFF).
CTRL + Q	Turns all output stopped on screen back on (XON).
CTRL + U	Erases the complete line.
CTRL + W	Deletes the last word typed in. For example, if you typed 'mv file1 file2' this shortcut would delete file2.
CTRL + Z	Cancels current operation, moves back a directory and/or takes the current operation and moves it to the background. See bg command for additional information about background.

Print on Double Sided

You want to print on both sides of the paper, then first check whether your printer support print on both sides automatically.

If you’re print support duplex printing then on the file menu click on print option. In printing dialog box click on Properties option. Here you will select a check box" Print on both sides" and OK for print.

But if your printer does not support duplex printing then you can do it manually.

Print the odd number of pages first then on the back side of pages even number. for example 1,3,5,7,9,11. After printing on one side of the page, change the order of pages depending on the paper feeds in your printer.

Hidden Setting Of SamSung Mobile

Code Action

*#9999# Use to display the mobile software version

#*3849# Use to reboot the Samsung handsets

*#06# To display the IMEI Number of the mobile

#*2558# To on/off the mobile time

#*7337# Use to unlock the latest Samsung set

#*4760# Use to activate and deactivate the GSM features

*#9998*246# To verify the memory and battery information

*#7465625# To verify the Lock status of mobile

*#0001# To display the Serial Number of the mobile

*2767*637# Use to unlock the mobile code

*#8999*636# To display the storage capacity of the mobile

#*2562# Use to reboot the Samsung handsets

*#8999*667# Use to run the mobile in Debug mode

*2767*226372# To fine-tune the camera settings

*#8999*778# Use to display the information about mobile SIM card

*2767*637# Use to unlock the mobile code

*7465625*28638# Use to make active the Network Lock

#*#8377466# To display the hardware version

*7465625*746*Code# Use to make active the SIM card lock

*#pw+15853649247w# Use to unlock the mobile code without SIM card

#*3888# To verify the Bluetooth information

*#9998*627837793# Uses to get extra parameter for unlock mobile settings

#7465625*28638# Use to unlock the Network Lock

#*7983# Voltage Use to regulate Frequency or Voltage

#7465625*746*Code# Use to unlock the SIM card lock

#*2834# Use to reset the hands free options

#*5376# To delete all SMS in one command

*#4777*8665# Use to explore the GPSR tool list

#*2474# To verify the charging duration

*2767*688# Use to readjust the mobile TV options

RIP Configuration

RouterA#show ip route

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, serial0/1

C 3.0.0.0/8 is directly connected, serial0/0

C 192.168.1.0/24 is directly connected, loopback0

Configure RIP on Router A

RouterA#configure terminal

RouterA#(config)#router rip

RouterA#(config-router)#network 3.0.0.0

RouterA#(config-router)#network 1.0.0.0

RouterA#(config-router)#network 192.168.1.0

RouterA#(config-router)#exit

RouterA#(config)#

Now verify these configuration on router A with command us under:

RouterA#show ip route

To check the routing protocol with this command.

RouterA#show ip protocols

RouterB#show ip route

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, serial0/1

C 2.0.0.0/8 is directly connected, serial0/0

C 192.168.1.0/24 is directly connected, loopback0

Configure RIP on Router B

RouterB#configure terminal

RouterB#(config)#router rip

RouterB#(config-router)#network 1.0.0.0

RouterB#(config-router)#network 2.0.0.0

RouterB#(config-router)#network 192.168.2.0

RouterB#(config-router)#exit

RouterB#(config)#

Now verify these configuration on router B with command us under:

RouterB#show ip route

RouterC#show ip route

Gateway of last resort is not set

C 2.0.0.0/8 is directly connected, serial1

C 3.0.0.0/8 is directly connected, serial0

C 192.168.3.0/24 is directly connected, loopback0

Configure RIP on Router C

RouterC#configure terminal

RouterC#(config)#router rip

RouterC#(config-router)#network 2.0.0.0

RouterC#(config-router)#network 3.0.0.0

RouterC#(config-router)#network 192.168.3.0

RouterC#(config-router)#exit

RouterC#(config)#

Now verify these configuration on router C with command us under:

RouterC#show ip route

Password Protect Document

-Open Save As dialog box by selecting "Save As" command from File menu.

-Click "Tools" button of Save As dialog box and choose "General Options" from drop down menu, "Save" dialog box appears as shown in figure below.

-Enter first password in "Password to open" text box and second password in "Password to modify" text box (if required) and click "Ok" button of dialog box. Microsoft Word will open "Confirm Password" dialog box for the confirmation of passwords. The maximum length of password is 15 characters.

-Re-enter the password to open and password to modify and click "Ok" button of Confirm Password dialog boxes one by one.

- Click "Save" button of Save As dialog box.