Wednesday 27 November 2013

What you reply when you receive wrong email !

I have been receiving emails not intended to me for quite sometime. I am looking for some 2 words like "Wrong number" , which everyone knows and tell once they receive calls which is not for them

I have tried replying to them with :

"Wrong ID "

"Wrong Email"

"Wrong Person"

"Ask Correct ID"

"Type Properly"

"Not ME"

"Ignored by ME"

"Deleted"

 Can you suggest which one looks more kind of "OK" ?


Keep Learning , Keep Sharing!

New Technical Terms !

Below is the list of few new upcoming new terms which i am hearing now a days.

IoT : Internet of Things

IoE : Internet of Everything

M2M communications : Machine to machine (M2M) refers to technologies that allow both wireless and wired systems to communicate with other devices of the same type.

BYOD    :   Bring your own device
BYOT    :   Bring your own technology
BYOP    :   Bring your own phone
BYOPC  :   Bring your own PC

It refers to the policy of permitting employees to bring personally owned mobile devices (laptops, tablets, and smart phones) to their workplace, and to use those devices to access privileged company information and applications.

Similar terms, which i can think of :-)

BYOTab   :    Bring your own Tab,
BYOLT     :    Bring your own Laptop,
BYODC    :    Bring your own Data CARD
BYOC      :    Bring your own Charger

Post in comments what else you can "Bring your own" in an office ?


Keep thinking , Keep Learning!

Monday 4 November 2013

About DHCPv6 !

1)   DHCPv6 makes use of the following multicast addresses:

     a)  All_DHCP_Relay_Agents_and_Servers (FF02::1:2) A link-scoped multicast address used by a client to communicate with neighboring relay agents and servers.
                

      b) All_DHCP_Servers (FF05::1:3) A site-scoped multicast address used by a relay agent to communicate with servers


2) Clients listen for DHCP messages on UDP port 546.  Servers and relay
   agents listen for DHCP messages on UDP port 547.

3) DHCP Message Types


      SOLICIT (1)        A client sends a Solicit message to locate
                         servers.

      ADVERTISE (2)      A server sends an Advertise message to indicate
                         that it is available for DHCP service, in
                         response to a Solicit message received from a
                         client.

      REQUEST (3)        A client sends a Request message to request
                         configuration parameters, including IP
                         addresses, from a specific server.

      CONFIRM (4)        A client sends a Confirm message to any
                         available server to determine whether the
                         addresses it was assigned are still appropriate
                         to the link to which the client is connected.


     RENEW (5)          A client sends a Renew message to the server
                         that originally provided the client's addresses
                         and configuration parameters to extend the
                         lifetimes on the addresses assigned to the
                         client and to update other configuration
                         parameters.

      REBIND (6)         A client sends a Rebind message to any
                         available server to extend the lifetimes on the
                         addresses assigned to the client and to update
                         other configuration parameters; this message is
                         sent after a client receives no response to a
                         Renew message.

      REPLY (7)          A server sends a Reply message containing
                         assigned addresses and configuration parameters
                         in response to a Solicit, Request, Renew,
                         Rebind message received from a client.  A
                         server sends a Reply message containing
                         configuration parameters in response to an
                         Information-request message.  A server sends a
                         Reply message in response to a Confirm message
                         confirming or denying that the addresses
                         assigned to the client are appropriate to the
                         link to which the client is connected.  A
                         server sends a Reply message to acknowledge
                         receipt of a Release or Decline message.

      RELEASE (8)        A client sends a Release message to the server
                         that assigned addresses to the client to
                         indicate that the client will no longer use one
                         or more of the assigned addresses.

      DECLINE (9)        A client sends a Decline message to a server to
                         indicate that the client has determined that
                         one or more addresses assigned by the server
                         are already in use on the link to which the
                         client is connected.

      RECONFIGURE (10)   A server sends a Reconfigure message to a
                         client to inform the client that the server has
                         new or updated configuration parameters, and
                         that the client is to initiate a Renew/Reply
                         or Information-request/Reply transaction with
                         the server in order to receive the updated
                         information.


      INFORMATION-REQUEST (11) A client sends an Information-request
                         message to a server to request configuration
                         parameters without the assignment of any IP
                         addresses to the client.

      RELAY-FORW (12)    A relay agent sends a Relay-forward message
                         to relay messages to servers, either directly
                         or through another relay agent.  The received
                         message, either a client message or a
                         Relay-forward message from another relay
                         agent, is encapsulated in an option in the
                         Relay-forward message.

      RELAY-REPL (13)    A server sends a Relay-reply message to a relay
                         agent containing a message that the relay
                         agent delivers to a client.  The Relay-reply
                         message may be relayed by other relay agents
                         for delivery to the destination relay agent.

                         The server encapsulates the client message as
                         an option in the Relay-reply message, which the
                         relay agent extracts and relays to the client.