Showing posts with label Networking. Show all posts
Showing posts with label Networking. Show all posts

Wednesday, 5 September 2012

FREE MULTIPLE VIDEO CONFERENCING

hi guys, Today i am posting a new post with which u can video conference with 12 people at a time free of cost.

  • Go to  http://www.oovoo.com, download the software and register your self and your friends and connect to them.
THANK  Q
D.B.V  RUTHWIZ

Tuesday, 31 January 2012

TYPES OF PROTOCOLS




  1. APPLICATION  PROTOCOL.

  1. AUTHENTICATION  PROTOCOL.

  1. COMMUNICATION  PROTOCOL.

  1. ROUTING  PROTOCOL.

  1. ROUTABLE  PROTOCOL.

  1. NON – ROUTABLE  PROTOCOL.

  1. TRANSPORT  PROTOCOL.

  1. WAN  PROTOCOL.

1.  APPLICATION PROTOCOL : APPLICATION  PROTOCOLS  ARE  USED  FOR : - 

    A. WEB – PAGES.  EX : - HTTP  ( HYPER  TEXT  TRANSFER  FILE ). 

    B. FOR  DOWNLOADING  AND  UPLOADING.  EX : -  FTP ( FILE  TRANSFER  PROTOCOL ). 

C.   FOR  SENDING  MAILS.  EX : - NNTP ( NETWORK  NEWS  TRANSFER  PROTOCOL ).


2. AUTHENTICATION PROTOCOL : WHICH  IS  HAVING  THE  AUTHORITY  TO  LOGIN  THE COMPUTER. 

      EXAMPLE : - 

A.   NTLM ( NEW  TECHNOLOGY  LAN  MANAGER ) : USED  FOR  WINDOWS  9X FAMILY  AND  WINNT }. 

        B.  KERBEROS  VERSION  5USED  FOR  WIN - 2K  FAMILY  AND  WIN – 2K3  FAMILY. 

        C.  PAPPASSWORD  AUTHENTICATION  PROTOCOL. 

D.   SPAPSHIVA  PASSWORD  AUTHENTICATION  PROTOCOL.

E.   CHAP  : CHALLENGE  HAND  SHAKE  AUTHENTICATION  PROTOCOL.

F.     MS-CHAPMICROSOFT  CHALLENGE  HAND  SHAKE  AUTHENTICATION  PROTOCOL.

3. COMMUNICATION PROTOCOL : IT  WILL  ALLOW  TO  COMMUNICATE  ONE COMPUTER  TO  ANOTHER  COMPUTER.


A.   TCP/IP ( TRANSMISSION  CONTROL  PROTOCOL / INTERNET  PROTOCOL ) : IT  IS SUPPORTED  BY  ALL  OPERATING  SYSTEMS  AND  IT  IS  ALSO  CALLED  AS  OPEN PROTOCOL.


B.   IPX/SPX ( INTER-NETWORKING POCKET EX-CHANGE / SEQUENCIAL PACKET 

      EX-CHANGE : IT  SUPPORTS  NOVELL  NET-WARE  OPERATING  SYSTEMS.


C.   NET BEUI ( NET  BIOS  EN-HANCED  USER  INTER-FACE ) : IT  WILL  ALLOW  TO COMMUNICATE  ALL  WINDOWS  BASED  OPERATING  SYSTEMS.


D.   APPLE TALK : IT  WILLSUPPOERT  APPLE  MACHINTOSH  OPERATING  SYSTEMS.


4. ROUTING PROTOCOL : IT  WILL  ALLOW  TO  MAINTAIN  ROUTING  TABLES  FOR  EVERY  NETWORK.

      1. RIP :  ROUTING  INFORMATION  PROTOCOL. 
   
      2. IGRP : INTERIER  GATE-WAY  ROUTING  PROTOCOL. 

      3. EIGRP : EN-HANCED  INTERIER  GATE-WAY  ROUTING  PROTOCOL. 

      4. OSPF : OPEN  SHORTEST  PATH  FIRST.


5. ROUTABLE PROTOCOL : IT  WILL  ALLOW  TO  COMMUNICATE  ONE  NETWORK  TO  ANOTHER  NETWORK. 

                EX : - IP, IPX, APPLE  TALK.

6. NON-ROUTABLE PROTOCOL : IT  WILL  ALLOW  TO  SEND  THE  PACKETS  WITH  IN  THE  NETWORK. 

                      EX : - NET BEUI.

7. TRANSPORT PROTOCOL : IT  WILL  ALLOW  TO  TRANSFER  INFORMATION  FROM  ONE  COMPUTER  TO  ANOTHER  COMPUTER. 

                           EX : - TCP, UDP, SPX.


8. WAN PROTOCOL : IT  WILL  ALLOW  TO  COMMUNICATE  ONE  WIDE  AREA  NETWORK  TO  ANOTHER  WIDE  AREA  NETWORK.

      EXAMPLES : -

1.    HDLC : HIGH  LEVEL  DATA  LINK  CONTROL, USED  FOR  CISCO  ROTERS.

2.    SDLC :  SEQUENTIAL  DATA  LINK  CONTROL, USED  FOR  IBM  ROUTERS.

3.    PPP :  POINT  TO  POINT  PROTOCOL.

4.    SLIP : SYNCROUNS  LINE  INTERNET  PROTOCOL.

5.    ATM : ASYNCROUNS  TRANSFER  MODE.

6.   DHCP  RELAY  AGENT.

Thursday, 29 September 2011

TO CREATE A VIRTUAL DRIVE AND HIDE IT WITH A PASSWORD


1.    SELECT  THE  VOLUME  DRIVE  NAME  U  WANT  TO  ASSIGN  >  CLICK  ON  CREATE  VOLUME.

2.    SELECT  THE  TYPE  OF  ENCRYPTION  FILE  SYSTEM  U  WANT  TO  ENCRYPT  >  CLICK  NEXT.


3.    SPECIFY  THE  TYPE  OF  VOLUME  U  WOULD  LIKE  TO  CREATE  >  CLICK  NEXT.


4.    SPECIFY  DIRECT  MODE  IF  U  WANT  TO  CREATE  A  HIDDEN  VOLUME  AND  CLICK  NEXT  >  SPECIFY  THE  VOLUME  LOCATION  WHERE  U  WANT  TO  SAVE  THE  VIRTUAL  DRIVE  AND  CLICK  NEXT.



5.    CLICK  NEXT  >  SELECT  THE  TYPE  OF  ENCRYPTION  ALGORITHM  U  WISH  { PERSONALLY  I  CHOOSE  AES-TWOFISH-SERPENT  >  CLICK  NEXT.



6.    SPECIFY  THE  AMOUNT  OF  VOLUME  U  WANT  TO  CREATE  FOR  THE  VIRTUAL  DRIVE  >  CLICK  NEXT.


7.    NOW  SPECIFY  THE  PASSWORD  FOR  THE  VOLUME  >  CLICK  NEXT.


8.    NOW  CLICK  FORMAT  BUTTON  TO  START  THE  PROCEDURE  FOR  CREATING  THE  VOLUME  >  CLICK  OK  AFTER COMPLETION  OF  THE  PROCEDURE  AND  CLICK  EXIT.


NOW  TO  MOUNT  UR  VIRTUAL  DRIVE  AND  ADD  FILES

9.    OPEN  TRUE  CRYPT  >  SELECT  THE  VIRTUAL  MACHINE  NAME  U  WANT  TO  MOUNT  THE  VIRTUAL  DRIVE  >  NOW  IN  THE  VOLUME  PANE  >  CLICK  SELECT  FILE  >  SPECIFY  THE  CREATED  VIRTUAL  DRIVE  >  NOW  CLICK  MOUNT  >  NOW  SPECIFY  THE  PASSWORD  FOR  THE  VIRTUAL  MACHINE  TO  MOUNT  THE  VOLUME  >  CLICK  OK.


10.   >  NOW  U  CAN  DRAG  AND  DROP  UR  FILES  TO  THE  VIRTUAL  DRIVE  AND  PROTECT  THE  FILE.


11. WHEN  U  DON’T  WANT  OTHERS  TO  SEE  UR  FILES  JUST  DISMOUNT  THE  VOLUME.

Tuesday, 6 September 2011

TO MAKE XP SYSTEM WORK AS A ROUTER


·         IP  FORWARDING  IS  A  VERY  GOOD  FEATURE  IN  WINDOWS  XP USING  WHICH  A  XP MACHINE  CAN  BE  MADE  TO  ACT  LIKE  A  ROUTER.  SO,  NEXT  TIME  YOU  SET  UP  HOME NETWORK  DO  CONSIDER  THIS.  SO  HOW  TO  DO  IT?  YOU  WILL  REQUIRE  AT  LEAST  2  OR  MORE  NIC  ( COMMONLY  KNOWN  AS LAN  CARDS )  TO  SETUP  THIS.
                                                               OR
·          ALTERNATIVELY  ON SECOND  NIC  YOU  CAN  CONNECT  A  SWITCH.  WHY  MULTIPLE NIC'S ?   ITS  OBVIOUS , 
·         1ST  :  -  NIC  THAT  DIRECTLY  CONNECT  TO  INTERNET.
·         OTHER  :  -  NIC  WHICH  WILL  ACT  JUST  ANY  OTHER  INTERFACE  OF  ROUTER  HOLDING OTHER  NETWORK. ( IT  WILL  ALSO  ACT  AS  DEFAULT  GATEWAY)

LETS TAKE AN EXAMPLE, SEE FIG BELOW,
·         IN  THE  FIGURE  AS  YOU  CAN  SEE  THERE  ARE  3  NIC  ONE  OF  WHICH  CONNECTS DIRECTLY  TO INTERNET  OTHER  TWO  ARE  USED  AS  ROUTER  INTERFACE  TO  CREATE  DIFFERENT  NETWORKS . LETS  START  :  -
·         FIRST  WE  HAVE  TO  ENABLE  IP  FORWARDING,  TO  DO  THAT  :  -
·         GO  TO  RUN >  TYPE  REGEDIT  >  THEN  FOLLOW  PATH
  
HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\SERVICES\TCPIPPARAMETERS

                             

·          RIGHT  CLICK  IPENABLEROUTER  REGISTRY  OBJECT, AND  CLICK  MODIFY
·         IN  THE  VALUE  DATA  FIELD  ENTER  1.  ITS  DONE  CLICK  OK.
·         NOW  CONFIGURE  THE  NETWORK  CARDS  ON  THE  XP  MACHINE  ( ROUTER )  WITH FOLLOWING  INFO  :  -
·         NIC – 2  :  -

                              NETWORK  CARD  A  ( CONNECT  TO  NETWORK A ) :
                              IP                                 :  10.10.10.1
                              NETMASK                  :  255.255.255.0
                              GATEWAY (GW)        :  [ LEAVE  IT  BLANK ]
·         NIC – 3  :   


                           NETWORK  CARD  B  ( CONNECT  TO  NETWORK  B ) :
                   IP                                :  192.168.20.1
                   NETMASK                  :  255.255.255.0
                   GATEWAY  ( GW )     :  [ LEAVE  IT  BLANK ]
·        NIC – 1  :  -

NETWORK  CARD  C  ( CONNECT  TO INTERNET  VIA  CABLE/DSL  CONNECTION )

THIS  INFORMATION  WILL  BE  BASED  ON  THE  INTERNET  CONNECTION  SERVICE  WHICH YOU  HAVE  SUBSCRIBED.
·         CONFIGURE  ALL  THE  COMPUTERS  IN  NETWORK  A  WITH  FOLLOWING  INFORMATION.
NETWORK  A
IP                                :  10.10.10.2-254
NETMASK                 :  255.255.255.0
GATEWAY (GW)       :  10.10.10.1
·         CONFIGURE  ALL  THE  COMPUTERS  IN  NETWORK  B  WITH  FOLLOWING  INFORMATION.
NETWORK  B
IP                    :  192.168.20.2-254
NETMASK      :  255.255.255.0
GATEWAY     :  192.168.20.1
THAT'S  IT  YOUR  DONE.
THANK Q
D.B.V RUTHWIZ 



WINDOWS NT / XP CMD COMMANDS


AN A-Z INDEX OF THE WINDOWS NT/XP COMMAND LINE

ADDUSERS 	ADD OR LIST USERS TO/FROM A CSV FILE
ARP      	ADDRESS RESOLUTION PROTOCOL
ASSOC    	CHANGE FILE EXTENSION ASSOCIATIONS
ASSOCIAT 	ONE STEP FILE ASSOCIATION
AT       	SCHEDULE A COMMAND TO RUN AT A LATER TIME
ATTRIB   	CHANGE FILE ATTRIBUTES
 
BROWSTAT GET DOMAIN, BROWSER AND PDC INFO
 
CACLS    CHANGE FILE PERMISSIONS
CALL     CALL ONE BATCH PROGRAM FROM ANOTHER
CD       CHANGE DIRECTORY - MOVE TO A SPECIFIC FOLDER
CHANGE   CHANGE TERMINAL SERVER SESSION PROPERTIES
CHKDSK   CHECK DISK - CHECK AND REPAIR DISK PROBLEMS
CHKNTFS  CHECK THE NTFS FILE SYSTEM
CHOICE   ACCEPT KEYBOARD INPUT TO A BATCH FILE
CIPHER   ENCRYPT OR DECRYPT FILES/FOLDERS
CLEANMGR AUTOMATED CLEANUP OF TEMP FILES, RECYCLE BIN
CLEARMEM CLEAR MEMORY LEAKS
CLIP     COPY STDIN TO THE WINDOWS CLIPBOARD.
CLS      CLEAR THE SCREEN
CLUSTER  WINDOWS CLUSTERING
CMD      START A NEW CMD SHELL
COLOR    CHANGE COLOURS OF THE CMD WINDOW
COMP     COMPARE THE CONTENTS OF TWO FILES OR SETS OF FILES
COMPACT  COMPRESS FILES OR FOLDERS ON AN NTFS PARTITION
COMPRESS COMPRESS INDIVIDUAL FILES ON AN NTFS PARTITION
CON2PRT  CONNECT OR DISCONNECT A PRINTER
CONVERT  CONVERT A FAT DRIVE TO NTFS.
COPY     COPY ONE OR MORE FILES TO ANOTHER LOCATION
CSVDE    IMPORT OR EXPORT ACTIVE DIRECTORY DATA 
 
DATE     DISPLAY OR SET THE DATE
DCOMCNFG DCOM CONFIGURATION UTILITY
DEFRAG   DEFRAGMENT HARD DRIVE
DEL      DELETE ONE OR MORE FILES
DELPROF  DELETE NT USER PROFILES
DELTREE  DELETE A FOLDER AND ALL SUBFOLDERS
DEVCON   DEVICE MANAGER COMMAND LINE UTILITY 
DIR      DISPLAY A LIST OF FILES AND FOLDERS
DIRUSE   DISPLAY DISK USAGE
DISKCOMP COMPARE THE CONTENTS OF TWO FLOPPY DISKS
DISKCOPY COPY THE CONTENTS OF ONE FLOPPY DISK TO ANOTHER
DNSSTAT  DNS STATISTICS
DOSKEY   EDIT COMMAND LINE, RECALL COMMANDS, AND CREATE MACROS
DSADD    ADD USER (COMPUTER, GROUP..) TO ACTIVE DIRECTORY

DSQUERY  LIST ITEMS IN ACTIVE DIRECTORY
DSMOD    MODIFY USER (COMPUTER, GROUP..) IN ACTIVE DIRECTORY
 
ECHO     DISPLAY MESSAGE ON SCREEN
ENDLOCAL END LOCALISATION OF ENVIRONMENT CHANGES IN A BATCH FILE
ERASE    DELETE ONE OR MORE FILES
EXIT     QUIT THE CMD SHELL
EXPAND   UNCOMPRESS FILES
EXTRACT  UNCOMPRESS CAB FILES
 
FC       COMPARE TWO FILES
FDISK    DISK FORMAT AND PARTITION
FIND     SEARCH FOR A TEXT STRING IN A FILE
FINDSTR  SEARCH FOR STRINGS IN FILES
FOR      CONDITIONALLY PERFORM A COMMAND SEVERAL TIMES
FORFILES BATCH PROCESS MULTIPLE FILES
FORMAT   FORMAT A DISK
FREEDISK CHECK FREE DISK SPACE (IN BYTES)
FSUTIL   FILE AND VOLUME UTILITIES
FTP      FILE TRANSFER PROTOCOL
FTYPE    DISPLAY OR MODIFY FILE TYPES USED IN FILE EXTENSION ASSOCIATIONS
 
GLOBAL   DISPLAY MEMBERSHIP OF GLOBAL GROUPS
GOTO     DIRECT A BATCH PROGRAM TO JUMP TO A LABELLED LINE
 
HELP     ONLINE HELP
HFNETCHK NETWORK SECURITY HOTFIX CHECKER 
 
IF       CONDITIONALLY PERFORM A COMMAND
IFMEMBER IS THE CURRENT USER IN AN NT WORKGROUP
IPCONFIG CONFIGURE IP
 
KILL     REMOVE A PROGRAM FROM MEMORY
 
LABEL    EDIT A DISK LABEL
LOCAL    DISPLAY MEMBERSHIP OF LOCAL GROUPS
LOGEVENT WRITE TEXT TO THE NT EVENT VIEWER.
LOGOFF   LOG A USER OFF
LOGTIME  LOG THE DATE AND TIME IN A FILE
 
MAPISEND SEND EMAIL FROM THE COMMAND LINE
MEM      DISPLAY MEMORY USAGE
MD       CREATE NEW FOLDERS
MODE     CONFIGURE A SYSTEM DEVICE
MORE     DISPLAY OUTPUT, ONE SCREEN AT A TIME
MOUNTVOL MANAGE A VOLUME MOUNT POINT
MOVE     MOVE FILES FROM ONE FOLDER TO ANOTHER
MOVEUSER MOVE A USER FROM ONE DOMAIN TO ANOTHER
MSG      SEND A MESSAGE
MSIEXEC  MICROSOFT WINDOWS INSTALLER
MSINFO   WINDOWS NT DIAGNOSTICS
MSTSC    TERMINAL SERVER CONNECTION (REMOTE DESKTOP PROTOCOL)
MUNGE    FIND AND REPLACE TEXT WITHIN FILE(S)
MV       COPY IN-USE FILES
 
NET      MANAGE NETWORK RESOURCES
NETDOM   DOMAIN MANAGER
NETSH    CONFIGURE NETWORK PROTOCOLS
NETSVC   COMMAND-LINE SERVICE CONTROLLER
NBTSTAT  DISPLAY NETWORKING STATISTICS (NETBIOS OVER TCP/IP)
NETSTAT  DISPLAY NETWORKING STATISTICS (TCP/IP)
NOW      DISPLAY THE CURRENT DATE AND TIME 
NSLOOKUP NAME SERVER LOOKUP
NTBACKUP BACKUP FOLDERS TO TAPE
NTRIGHTS EDIT USER ACCOUNT RIGHTS
 
PATH     DISPLAY OR SET A SEARCH PATH FOR EXECUTABLE FILES
PATHPING TRACE ROUTE PLUS NETWORK LATENCY AND PACKET LOSS
PAUSE    SUSPEND PROCESSING OF A BATCH FILE AND DISPLAY A MESSAGE
PERMS    SHOW PERMISSIONS FOR A USER
PERFMON  PERFORMANCE MONITOR
PING     TEST A NETWORK CONNECTION
POPD     RESTORE THE PREVIOUS VALUE OF THE CURRENT DIRECTORY SAVED BY PUSHD
PORTQRY  DISPLAY THE STATUS OF PORTS AND SERVICES
PRINT    PRINT A TEXT FILE
PRNCNFG  DISPLAY, CONFIGURE OR RENAME A PRINTER
PRNMNGR  ADD, DELETE, LIST PRINTERS SET THE DEFAULT PRINTER
PROMPT   CHANGE THE COMMAND PROMPT
PUSHD    SAVE AND THEN CHANGE THE CURRENT DIRECTORY
 
QGREP    SEARCH FILE(S) FOR LINES THAT MATCH A GIVEN PATTERN.
 
RASDIAL  MANAGE RAS CONNECTIONS
RASPHONE MANAGE RAS CONNECTIONS
RECOVER  RECOVER A DAMAGED FILE FROM A DEFECTIVE DISK.
REG      READ, SET OR DELETE REGISTRY KEYS AND VALUES
REGEDIT  IMPORT OR EXPORT REGISTRY SETTINGS
REGSVR32 REGISTER OR UNREGISTER A DLL
REGINI   CHANGE REGISTRY PERMISSIONS
REM      RECORD COMMENTS (REMARKS) IN A BATCH FILE
REN      RENAME A FILE OR FILES.
REPLACE  REPLACE OR UPDATE ONE FILE WITH ANOTHER
RD       DELETE FOLDER(S)
RDISK    CREATE A RECOVERY DISK
RMTSHARE SHARE A FOLDER OR A PRINTER
ROBOCOPY ROBUST FILE AND FOLDER COPY
ROUTE    MANIPULATE NETWORK ROUTING TABLES
RUNAS    EXECUTE A PROGRAM UNDER A DIFFERENT USER ACCOUNT
RUNDLL32 RUN A DLL COMMAND (ADD/REMOVE PRINT CONNECTIONS)
 
SC       SERVICE CONTROL
SCHTASKS CREATE OR EDIT SCHEDULED TASKS 
SCLIST   DISPLAY NT SERVICES
SCRIPTIT CONTROL GUI APPLICATIONS
SET      DISPLAY, SET, OR REMOVE ENVIRONMENT VARIABLES
SETLOCAL BEGIN LOCALISATION OF ENVIRONMENT CHANGES IN A BATCH FILE
SETX     SET ENVIRONMENT VARIABLES PERMANENTLY 
SHARE    LIST OR EDIT A FILE SHARE OR PRINT SHARE
SHIFT    SHIFT THE POSITION OF REPLACEABLE PARAMETERS IN A BATCH FILE
SHORTCUT CREATE A WINDOWS SHORTCUT (.LNK FILE)
SHOWGRPS LIST THE NT WORKGROUPS A USER HAS JOINED
SHOWMBRS LIST THE USERS WHO ARE MEMBERS OF A WORKGROUP
SHUTDOWN SHUTDOWN THE COMPUTER
SLEEP    WAIT FOR X SECONDS
SOON     SCHEDULE A COMMAND TO RUN IN THE NEAR FUTURE
SORT     SORT INPUT
START    START A SEPARATE WINDOW TO RUN A SPECIFIED PROGRAM OR COMMAND
SU       SWITCH USER
SUBINACL EDIT FILE AND FOLDER PERMISSIONS, OWNERSHIP AND DOMAIN
SUBST    ASSOCIATE A PATH WITH A DRIVE LETTER
SYSTEMINFO LIST SYSTEM CONFIGURATION
 
TASKLIST LIST RUNNING APPLICATIONS AND SERVICES
TIME     DISPLAY OR SET THE SYSTEM TIME
TIMEOUT  DELAY PROCESSING OF A BATCH FILE
TITLE    SET THE WINDOW TITLE FOR A CMD.EXE SESSION
TOUCH    CHANGE FILE TIMESTAMPS    
TRACERT  TRACE ROUTE TO A REMOTE HOST
TREE     GRAPHICAL DISPLAY OF FOLDER STRUCTURE
TYPE     DISPLAY THE CONTENTS OF A TEXT FILE
 
USRSTAT  LIST DOMAIN USERNAMES AND LAST LOGIN
 
VER      DISPLAY VERSION INFORMATION
VERIFY   VERIFY THAT FILES HAVE BEEN SAVED
VOL      DISPLAY A DISK LABEL
 
WHERE    LOCATE AND DISPLAY FILES IN A DIRECTORY TREE
WHOAMI   OUTPUT THE CURRENT USERNAME AND DOMAIN
WINDIFF  COMPARE THE CONTENTS OF TWO FILES OR SETS OF FILES
WINMSD   WINDOWS SYSTEM DIAGNOSTICS
WINMSDP  WINDOWS SYSTEM DIAGNOSTICS II

WMIC     WMI COMMANDS
 
XCACLS   CHANGE FILE PERMISSIONS
XCOPY    COPY FILES AND FOLDERS

THANK  Q
D.B.V RUTHWIZ