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Mynavi News is a comprehensive information news site with more than 100 categories updated daily. It consists of the latest news and analysis reports and columns from a wide range of genres such as business, digital, lifestyle, and entertainment to niche categories such as management, technology, railways, and cars.

Wikipedia related words

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Login (British: log in) IsComputerIdentify the user's identity and validity at the start of use, and variousresourceThis is an operation to obtain the credentials required to access.Typically,Computer securityIt is incorporated as part of the methods and means related to.Logon(British: log on),Sign in(British: sign in),Sign on(British: sign on)[Source required]Also called.


The original meaning of log is "log".This was used on a shipLogbook Derived from (logbook).The logbook records the speed of the ship, but the word "log" is used because the speed was once measured by "the time it takes for a log dropped from the bow to reach the stern" (Data log # etymologyandKnot #OriginSee).

In English, it is said that the usage record kept while using the computer is called "log" according to the ship terminology, and that the worker goes to the factory and stamps the time on the time card. clock in Therefore, the start of use of the computer system is called login, and the end of use is called logout.[Source required].

To log in to a general system, enter the following character string into the system.

  • User name --A short string used to uniquely identify a person.Using this character string as a clue, information such as the real name is further referred to.
  • Password --A string provided with your username.It is the "key" for logging in to the system and must be kept secret from other users as it can be misused by a third party.パスワードはThe password isAuthenticationIt is a means for, and can be replaced by other authentication methods.

Often this username and password isComputer system,Computer network, ま た はdomainIt is also used to access.ログイン処理に伴って、ユーザー固有のUser-specific with login processsessionIs created on the computer.The system software limits what the user can do with this session while the user is logged in.English-speaking countriesNow, point to the group of users currently in use logins The operation to start using the system is called log in I call it and use it properly.

When a user ends a sessionLogout (British: log out).


Words synonymous with "login" include "logon," "sign in," and "sign on."Each of these has a pair of words "logout", "logoff", "signout", and "signoff", but their meanings are completely synonymous, and their usage depends on the culture of the system.

UNIX,LinuxIn contrast to the general "login" and "logout" used in, Microsoft does not use the word "login" as much as possible.Windows 7Had a tendency to use "logon" until[Source required]..Therefore, entering a Windows session was called "logon", and leaving the session was called "logoff".[Source required]. But,Windows 8After that, it was renamed to "Sign in" and "Sign out"[why?].

The term sign-on was originallyIBMUsed in[Source required].

In addition, "Single sign-onIs not called "single login," "single logon," or "single sign-in."

Easy login

Japan OfMobile phone(SmartphoneThere is a login system called "Easy Login" that can be used on the website for (excluding).Of the terminalContractor unique IDCan be recorded on the server side as authentication information, and you can log in with the touch of a button without entering an ID and password.But,HTTPIt has been pointed out that there is a risk of spoofing by disguising the header information because it is exchanged using the information in the request header.[1].


[How to use footnotes]


  1. ^ Yasuhiro Koyama: “What is the security problem of "Easy Login"?-WASForum 2010 (1) Problems pointed out in "Easy Login"". My Navi News (September 2010, 6). NovemberBrowse.


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