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What is the .CA File Extension?

.CA File Extension Description:

The file extension .ca is defined as the Initial Cache Data File used by the Telnet Server, and contains the information that is used by the root domain servers. The importance of .ca file extensions is highlighted by the fact that they contain pertinent data used in creating Telnet connections, and usually implemented on UNIX and Linux Operating System platforms. The file extension .ca has a list of root DNS servers found around the world to facilitate interconnection functionality.

In using .ca file extensions, it is necessary to relate it with the File Transfer Protocol, which is a transport facility used by the Internet in transferring information between connected computer systems. Reference to FTP in the context of installation and programming, refers to the actual application interface utilized to implement file transfer or the actual act of transferring the file. The .ca file extension makes it possible to send the file to the correct receipt via the defined route contained within the data file.

The Telnet client that uses the file extension .ca emulates server applications on the client's computer, allowing him to manipulate the system, like creating and removing file directories, changing modes or retrieving file server information. The majority of Microsoft Windows Operating System products ship with a built-in Telnet client, which can generate its own files that use the .ca file extension and is associated with the telnet.exe executable file. The Telnet application will require the inputting of username and password prior to connection to the server list in the .ca file extension, and uses the same login credentials for the FTP client.

In dealing with .ca file extensions, it is important to have a clear understanding of directory structures and the concept of parent or root directory. The CHMOD command is very useful in dealing with FTP and Telnet applications, because it allows the user to move from one directory to another. Telnet was introduced in 1969 as a transport protocol for implementation with Local Area Networks and the Internet.

Author: Microsoft Corporation
Author URL:
Related Applications: Microsoft Windows Operating System, UNIX, Linux
Common Path: C:/ Windows/


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Do you have errors with .CA files?

The Usual Cause of .CA files Errors:

A typical and frequent cause for .CA files errors is failure in the Windows program registry - repairs are essential to avoid further corruption in other applications and/or devices. Risks include device damage, blue screen errors and fatal system crashes.

Symptoms of .CA files Errors:

Typical symptoms with .CA files errors include reduced system speed, extended application load speed, problems loading files, excessive breaks in program procedures, applications exits without an error message, input freezes and programs lock up.

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What is the .CA File Extension?    |    Scan for .CA File Extension Errors    |    Repair .CA File Errors