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melicaster

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Posts posted by melicaster


  1. In the context of computer networking, Dynamic Host Configuration Protocol (DHCPv6) is a client-server networking protocol. A DHCP server provides configuration parameters specific to the DHCP client host requesting, generally, information required by the client host to participate on an IP network. DHCP also provides a mechanism for allocation of IP addresses to client hosts.When I access my modem configuration, the status show that my DHCP is not connected. So, I can't access the Internet.Help me!


  2. Layer 1 protocols (Physical layer)

    ISDN = Integrated Services Digital Network

    PDH = Plesiochronous Digital Hierarchy

    T-carrier = (T1, T3 etc)

    RS-232 = a serial line interface originally developed to connect modems and computer terminals

    SDH = Synchronous Digital Hierarchy

    SONET = Synchronous Optical NETworking

     

    Layer 2 protocols (Data link layer)

    ARP =Address Resolution Protocol

    ARCnet

    CDP = Cisco Discovery Protocol

    DCAP = Data Link Switching Client Access Protocol

    Econet = data unavailable

    Ethernet = data unavailable

    FDDI Fiber Distributed Data Interface

    Frame Relay  = data unavailable

    HDLC High Level Data Link Control

    LocalTalk  = data unavailable

    L2F Layer 2 Forwarding Protocol

    L2TP Layer 2 Tunneling Protocol

    PPP Point-to-Point Protocol

    PPTP Point-to-Point Tunneling Protocol

    SLIP Serial Line Internet Protocol (obsolete)

    StarLan = data unavailable

    Token ring = data unavailable

     

    Layer 2+3 protocols

    ATM Asynchronous Transfer Mode

    Frame relay a simplified version of X.25

    MPLS Multi-protocol label switching

    Signalling System 7, also called SS7, C7 and CCIS7; a common PSTN control protocol.

    X.25


  3. A domain ontology is an ontology tied to a specific domain. A foundation ontology is a form of ontology that tries to be less specific, and in that way more generally applicable. It contains a core glossary in whose terms everything else in a broad domain can and must be described. An example is the 2000 words of English required by Longman's dictionary, used to define the 4000 most common English idioms. A foundation ontology in computer science would serve as core ontology for both computer programs and users, influencing their view of data and events.
    A computer science example is that, by default, all computer programs have a foundation ontology consisting of a processor instruction set, standard library in a programming language, files in accessible file systems, or some other list of 'what exists'. Because these may be poor representations for certain problem domains, more specialized schema must be created to make the data useful in making real world decisions. Thus the need for standards which take 'core' ontologies (e.g. the Dublin Core in SGML) and solidify them into 'foundations'.

    Tom R. Gruber and R. Studer have described an ontology in this sense as "an explicit and formal specification of a conceptualization" .


    Notice from BuffaloHELP:
    When you copy from any source, like http://en.wikipedia.org/wiki/Ontology_(computer_science) , you must use QUOTE tags.


  4. I recommend using Yahoo! Search.

     

    Yahoo! Search is a web search engine, owned by Yahoo!. Originally, "Yahoo! Search" merely referred to an interface, Yahoo! provided, which would pass on queries to another search engine "behind the scenes" (most recently Google), and display them to the user, under the Yahoo! brand. Originally, none of the actual web crawling and storage/retrieval of data was done by Yahoo! itself.

     

    Seeking to provide its own search engine results, Yahoo! acquired other companies with their own search engines. In 2002, it bought Inktomi, a "behind the scenes" search engine, whose results are shown on other companies' web sites. In 2003, it bought Overture Services, Inc., which owned the AlltheWeb and AltaVista search engines. Initially, even though it owned multiple search engines, it didn't use them on the main Yahoo.com web site, but kept using Google's search engine for its results.

     

    However, starting in 2004, Yahoo! Search became an original web crawler-based search engine, with a reinvented crawler called Yahoo! Slurp. Yahoo! Search combined the capabilities of search engine companies it had acquired, with its existing research, and put them into a single search engine. Its new search engine results were included in all of Yahoo's sites that had a web search function. It also started to sell its search engine results to other companies, to show on their web sites. Its relationship with Google was terminated at that time, with the former partners becoming each other's main competitors.

    The web address of Yahoo! Search is http://search.yahoo.com/.

     

    Notice from BuffaloHELP:
    You must use QUOTE tags when copying from another source https://en.wikipedia.org/wiki/Yahoo!_Search

  5. 100 Continue

    Only a part of the request has been received by the server, but as long as it has not been rejected, the client should continue with the request

    101 Switching Protocols

    The server switches protocol

    200 OK

    The request is OK

    201 Created

    The request is complete, and a new resource is created

    202 Accepted

    The request is accepted for processing, but the processing is not complete

    203 Non-authoritative Information  

    204 No Content  

    205 Reset Content  

    206 Partial Content

    300 Multiple Choices

    A link list. The user can select a link and go to that location.  Maximum five addresses

    301 Moved Permanently

    The requested page has moved to a new url

    302 Found

    The requested page has moved temporarily to a new url

    303 See Other

    The requested page can be found under a different url

    304 Not Modified  

    305 Use Proxy  

    306 Unused

    This code was used in a previous version.  It is no longer used, but the code is reserved

    307 Temporary Redirect

    The requested page has moved temporarily to a new url

    400 Bad Request

    The server did not understand the request

    401 Unauthorized

    The requested page needs a username and a password 

    402 Payment Required

    You can not use this code yet 

    403 Forbidden

    Access is forbidden to the requested page 

    404 Not Found

    The server can not find the requested page 

    405 Method Not Allowed

    The method specified in the request is not allowed

    406 Not Acceptable

    The server can only generate a response that is not accepted by the client

    407 Proxy Authentication Required

    You must authenticate with a proxy server before this request can be served

    408 Request Timeout

    The request took longer than the server was prepared to wait

    409 Conflict

    The request could not be completed because of a conflict

    410 Gone

    The requested page is no longer available

    411 Length Required

    The "Content-Length" is not defined. The server will not accept the request without it

    412 Precondition Failed

    The precondition given in the request evaluated to false by the server

    413 Request Entity Too Large

    The server will not accept the request, because the request entity is too large

    414 Request-url Too Long

    The server will not accept the request, because the url is too long.  Occurs when you convert a "post" request to a "get" request with a long query information

    415 Unsupported Media Type

    The server will not accept the request, because the media type is not supported

    416  

    This code still no information

    417 Expectation Failed

    500 Internal Server Error

    The request was not completed. The server met an unexpected condition

    501 Not Implemented

    The request was not completed. The server did not support the functionality required

    502 Bad Gateway

    The request was not completed. The server received an invalid response from the upstream server

    503 Service Unavailable

    The request was not completed. The server is temporarily overloading or down

    504 Gateway Timeout

    The gateway has timed out 

    505 HTTP Version Not Supported

    The server does not support the "http protocol" version


    I hope the information above will help you all to define what error when you met at the web.

    Notice from jlhaslip:
    Long lists such as this should be placed inside quote tags.

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