Tuesday 18 September 2012

Linux O.S. ( 18 Sep. 2012 )



Today’s topic is
Understanding to Linux terminal


Terminal/shell prompt / Linux prompt is command line of linux
To open terminal in gui in suse press   Ctrl + alt + f7
To go to first terminal Ctrl + alt + f1
To go to 2nd  terminal Ctrl + alt + f2
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To go to 6th  terminal Ctrl + alt + f6
Root is super user in linux or like windows admin.
/root is home directory of root user
  #  “ this sign Shows user is normal user
  >  “ this sign Shows user is normal user

  ~   ” this sign represents user’s home directory

To delete Linux                                   rm –rf /directory name in which linux is

To check computer name                   hostname
To go to home directory                     cd/home username
To go to home directory                     cd ~
To go to home directory                     cd
To clear screen                                   clear
To clear screen                                   press ctrl + l
List out all contents of directory         ls-l
-      d  “ at the start of list shows it is folder
- “  -    at the start of list shows it is file
To create hidden folder                      mkdir .filename
-Dot . is essential before folder’s name to hide it
To show hidden folders                       ls –a –l
To delete folder & its contents           rm –rf
To delete Linux                                   rm –rf /directory name in which linux is
To delete multiple folders at once     rm –rf fldr1 fldr2 fldr3

Network design management ( 18 Sep. 2012 )



NVRAM
            Startup configuration is saved in it.NVRAM (nonvolatile RAM), is used to store the router's startup configuration file. It does not lose data when power is switched off. So the contents of the startup configuration file are maintained even when you switch off or restart the router.
 Routers Modes
Ø  User  Mode – router >
Ø  Privileged Exec Mode -- Router #
Ø  Global configuration  Mode – Router (config) #
Ø  Interface Mode-- router (Config-if)#




Ø  Software used for labs “ Cisco packet tracer ”
Diffrent commands like IP assigning , configuration , saving configuration were discussed 
Ø  All commands are in slides



B.P. ( 18 Sep. 2012 )



Types of processes

  •         Core process /primary process
  •         Non-core process/ support process/secondary process
  •         Management process
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