Cfg File Reader For Mac

Edit config.txt on macOS. If you’re using a Mac, you should find the card appears on your desktop when it is detected. Use the Finder to browse the contents, looking for a file called config (without the TXT file extension). Read and edit the file in the TextEdit app, ensuring that any changes you make are saved when you exit. Step 1: Is your CAC reader Mac friendly? Visit the USB Readers page to verify the CAC reader you have is Mac friendly. Visit the USB-C Readers page to verify the CAC reader you have is Mac friendly. 'Some, not all' CAC readers may need to have a driver installed to make it work. NOTE: Readers such as: SCR-331 & SCR-3500A may need a firmware update (NO OTHER Readers need firmware updates).

In computing, configuration files (commonly known simply as config files) are files used to configure the parameters and initial settings for some computer programs. They are used for user applications, server processes and operating system settings.

Some applications provide tools to create, modify, and verify the syntax of their configuration files; these sometimes have graphical interfaces. For other programs, system administrators may be expected to create and modify files by hand using a text editor; possible because many are human-editable plain text files. For server processes and operating-system settings, there is often no standard tool, but operating systems may provide their own graphical interfaces such as YaST or debconf.

Some computer programs only read their configuration files at startup. Others periodically check the configuration files for changes. Users can instruct some programs to re-read the configuration files and apply the changes to the current process, or indeed to read arbitrary files as a configuration file. There are no definitive standards or strong conventions.

Configuration files and operating systems[edit]

Unix and Unix-like operating systems[edit]

Across Unix-like operating systems many different configuration-file formats exist, with each application or service potentially having a unique format, but there is a strong tradition of them being in human-editable plain text, and a simple key-value pair format is common. Filename extensions of .cnf, .conf, .cfg, .cf or .ini are often used.

Almost all formats allow comments, in which case, individual settings can be disabled by prepending with the comment character. Often the default configuration files contain extensive internal documentation in the form of comments^[1][2] and man files are also typically used to document the format and options available.

System-wide software often uses configuration files stored in /etc, while user applications often use a 'dotfile' – a file or directory in the home directory prefixed with a period, which in Unix hides the file or directory from casual listing.

Some configuration files run a set of commands upon startup. A common convention is for such files to have 'rc' in their name,^[3] typically using the name of the program then an '(.)rc' suffix e.g. '.xinitrc', '.vimrc', '.bashrc', 'xsane.rc'. See run commands for further details.

By contrast, IBM's AIX uses an Object Data Manager (ODM) database to store much of its system settings.

MS-DOS[edit]

MS-DOS itself primarily relied on just one configuration file, CONFIG.SYS. This was a plain text file with simple key-value pairs (e.g. DEVICEHIGH=C:DOSANSI.SYS) until MS-DOS 6, which introduced an INI-file style format. There was also a standard plain text batch file named AUTOEXEC.BAT that ran a series of commands on boot. Both these files were retained up to Windows 98SE, which still ran on top of MS-DOS.

An example CONFIG.SYS for MS-DOS 5:

DOS applications used a wide variety of individual configuration files, most of them binary, proprietary and undocumented - and there were no common conventions or formats.^{[citation needed]}

Microsoft Windows[edit]

The early Microsoft Windows family of operating systems heavily utilized plain-text INI files (from 'initialization'). These served as the primary mechanism to configure the operating system and application features.^[4] The APIs to read and write from these still exist in Windows, but after 1993, Microsoft began to steer developers away from using INI files and toward storing settings in the Windows Registry, a hierarchical database to store configuration settings, which was introduced that year with Windows NT.

Mac OS X[edit]

The property list file is the standard configuration file format in Mac OS X (as well as in iOS, NeXTSTEP, GNUstep and Cocoa applications). Property list files use the filename extension .plist, and thus are often referred to as p-list files.

IBM OS/2[edit]

IBM's OS/2 uses a binary format, also with a .INI suffix, but this differs from the Windows versions.It contains a list of lists of untyped key-value pairs.^[5]Two files control system-wide settings: OS2.INI and OS2SYS.INI.Application developers can choose whether to use them or to create a specific file for their applications.

Serialization formats[edit]

A number of general-purpose serialization formats exist that can represent complex data structures in an easily stored format, and these are often used as a basis for configuration files, particularly in open-source and platform-neutral software applications and libraries. The specifications describing these formats are routinely made available to the public, thus increasing the availability of parsers and emitters across programming languages.

Examples include: XML, TOML, YAML and JSON.

See also[edit]

• INI file, a common configuration file format
• .properties, a file extension mainly used in Java
• JSON, with support for complex data types and data structures
• HOCON, a superset of .properties and JSON
• Run commands, which explains the historical origin of the 'rc' suffix
• TOML, a formally-specified configuration file format
• YAML, with support for complex data types and structures

References[edit]

1. ^https://opensource.apple.com/source/postfix/postfix-174.2/Postfix.Config/main.cf.default.
2. ^http://opensource.apple.com/source/apache/apache-769/httpd.conf.
3. ^'rc file'. Catb.org. Retrieved 2012-02-29.
4. ^Microsoft: Windows NT Workstation Resource Kit.
5. ^The OS/2 INI Files by James J. Weinkam.

External links[edit]

• libprf1 - alpha cross-platform, multi-language support for accessing the Preferences Registry Format (PRF) 1.0 configuration files
• Config - configuration file management. Supports INI, .properties, JSON, XML, TOML, and YAML.

Use kubeconfig files to organize information about clusters, users, namespaces, andauthentication mechanisms. The kubectl command-line tool uses kubeconfig files tofind the information it needs to choose a cluster and communicate with the API serverof a cluster.

By default, kubectl looks for a file named config in the $HOME/.kube directory.You can specify other kubeconfig files by setting the KUBECONFIG environmentvariable or by setting the--kubeconfig flag.

For step-by-step instructions on creating and specifying kubeconfig files, seeConfigure Access to Multiple Clusters.

Official Website: Company: Adobe Systems Inc,. Macromedia dreamweaver free download full version for windows 7.

Supporting multiple clusters, users, and authentication mechanisms

Suppose you have several clusters, and your users and components authenticatein a variety of ways. For example:

• A running kubelet might authenticate using certificates.
• A user might authenticate using tokens.
• Administrators might have sets of certificates that they provide to individual users.

With kubeconfig files, you can organize your clusters, users, and namespaces.You can also define contexts to quickly and easily switch betweenclusters and namespaces.

Context

A context element in a kubeconfig file is used to group access parametersunder a convenient name. Each context has three parameters: cluster, namespace, and user.By default, the kubectl command-line tool uses parameters fromthe current context to communicate with the cluster.

To choose the current context:

The KUBECONFIG environment variable

The KUBECONFIG environment variable holds a list of kubeconfig files.For Linux and Mac, the list is colon-delimited. For Windows, the listis semicolon-delimited. The KUBECONFIG environment variable is notrequired. If the KUBECONFIG environment variable doesn’t exist,kubectl uses the default kubeconfig file, $HOME/.kube/config.

If the KUBECONFIG environment variable does exist, kubectl usesan effective configuration that is the result of merging the fileslisted in the KUBECONFIG environment variable.

Merging kubeconfig files

To see your configuration, enter this command:

As described previously, the output might be from a single kubeconfig file,or it might be the result of merging several kubeconfig files.

Here are the rules that kubectl uses when it merges kubeconfig files:

1. If the --kubeconfig flag is set, use only the specified file. Do not merge.Only one instance of this flag is allowed.

   Otherwise, if the KUBECONFIG environment variable is set, use it as alist of files that should be merged.Merge the files listed in the KUBECONFIG environment variableaccording to these rules:

   • Ignore empty filenames.
   • Produce errors for files with content that cannot be deserialized.
   • The first file to set a particular value or map key wins.
   • Never change the value or map key.Example: Preserve the context of the first file to set current-context.Example: If two files specify a red-user, use only values from the first file’s red-user.Even if the second file has non-conflicting entries under red-user, discard them.

   For an example of setting the KUBECONFIG environment variable, seeSetting the KUBECONFIG environment variable.

   Otherwise, use the default kubeconfig file, $HOME/.kube/config, with no merging.

2. Determine the context to use based on the first hit in this chain:

   1. Use the --context command-line flag if it exists.
   2. Use the current-context from the merged kubeconfig files.

   An empty context is allowed at this point.

3. Determine the cluster and user. At this point, there might or might not be a context.Determine the cluster and user based on the first hit in this chain,which is run twice: once for user and once for cluster:

   1. Use a command-line flag if it exists: --user or --cluster.
   2. If the context is non-empty, take the user or cluster from the context.

   The user and cluster can be empty at this point.

4. Determine the actual cluster information to use. At this point, there might ormight not be cluster information.Build each piece of the cluster information based on this chain; the first hit wins:

   1. Use command line flags if they exist: --server, --certificate-authority, --insecure-skip-tls-verify.
   2. If any cluster information attributes exist from the merged kubeconfig files, use them.
   3. If there is no server location, fail.

5. Determine the actual user information to use. Build user information using the samerules as cluster information, except allow only one authenticationtechnique per user:

   1. Use command line flags if they exist: --client-certificate, --client-key, --username, --password, --token.
   2. Use the user fields from the merged kubeconfig files.
   3. If there are two conflicting techniques, fail.

6. For any information still missing, use default values and potentiallyprompt for authentication information.

File references

File and path references in a kubeconfig file are relative to the location of the kubeconfig file.File references on the command line are relative to the current working directory.In $HOME/.kube/config, relative paths are stored relatively, and absolute pathsare stored absolutely.

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