computermeniaa

                                    #LOGIN WITHOUT PASSWORD# We normally login as Login :root Passwd ---------- ]# But to login without password [there is a file in a [/etc/passwd] this file conatain all the password informations for all the users. Open the file that contain a [X] follow by the user name like [root:x:0:0: ] simply delete the [X] carefully and it will not ask for the password but when we reassign the password for the user this [x] will come back again to its position. So by deletion the [X] for the particular user you can loginby that user without enter a password. Now how to do_________________________________________________________ #vi /etc/passwd    root:x:0:0:root:/root:/bin:.bash Delete this x only and the following appears root::0:0:root:/root:/bin:.bash :wq! __________ save n exit Now you can login the root without a password Login : root ]# Now if you make more user

IMPORTANT FUNCTIONS OF LINUX       there's some form of vital functions in  LINUX wish to amendment a begin menu name like different that         below 1... TO KILL A PROCESS________________________________________________________________     It’s sort of a method is functioning on another terminal and by another user you have got to terminate it or kill it from another user mistreatment another terminal How to do like running ping command on terminal [TTY 1] on user [raj]                 Tty1        #ping 192.168.100.10             Reply ###########################             Reply ###########################                 Tty2    root             Login: root             Passwd:         ] #ps –U RAJ_____________ [here ps: - method,   -U: -- user,     & raj: is like several user name]         3248: ping     this sort is however a code shown for the method that is in acting on tty1 on rule Now to terminate the method on rule user on tty1                         ] #kill [

FILE SYSTEM OF LINUX_____________________________________ THERE ARE SIX [6] TYPES OF FILE SYSTEMS FOR THE LINUX. 1_EXT3_____EXTENDED FILE SYSTEM 3. 2_EXT2_____EXTENDED FILE SYSTEM 2. 3_VFAT_____VIRTUAL FILE ALLOCATION TABLE. 4_LVM _____LOGICAL VOLUME MANAGEMENT. 5_RAID_____REDUNDENT ARRAY OF INEXPENSIVE DISK. 6_SWAP____SWAP IS THE VIRTUAL MAMORY FILE SYSTEM FOR LINUX. EXPLANATION _________________________________________________________ 1_EXT3____IT IS VERY SECURE FILE SYSTEM. WE CAN NOT RECOVRE THE                      DATA IF WE FORMAT THE PARTITION WITH EXT3. NO DATA RECOVRY POSSIBLE. 2_EXT2____IT IS NOT SO MUCH SECURE FILE SYSTEM. WE CAN RECOVER                       DATA EVEN AFTER THE FORMAT WITH EXT2.                       DATA RECOVERY POSSIBLE. 3_VFAT___IT IS THE VIRTUALFAT LIKE PARTITION WHICH WE CAN USE ON THE LINUX AS WELL AS ON THE WINDOWS XP O/S.                                          IF WE HAVE THE LINUX AS WELL AS WIN XP O

                            BREAK LINUX PASSWORD            Suppose simple login                                     Login root                                           Password ******                 [root@localost~]#      This is the simple login the Linux when we know the password but if we not know        ___________________________________________________________________________________________________________________________________________________________________________       To break password_____________________________________________________________       Remember we are not know the password now -----------    Reboot the system wait for the red welcome screen of the Linux don’t let the timing to go to zero [0]    Press escape before it reaches to zero.     Then follow the steps._______________________ EDIT THIS LINE BY PRESS [E] HERE BEFORE REACHING TIME ZERO REDHAT ENTERPRISE LINUX -2.6.18-53ELS IIIII..__________(2)_TIME