LinuxCommandLibrary

safe

Safely executes commands; prevents accidental damage

TLDR

Add a safe target

$ safe target [vault_addr] [target_name]
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Authenticate the CLI client against the Vault server, using an authentication token
$ safe auth [authentication_token]
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Print the environment variables describing the current target
$ safe env
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Display a tree hierarchy of all reachable keys for a given path
$ safe tree [path]
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Move a secret from one path to another
$ safe move [old/path/to/secret] [new/path/to/secret]
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Generate a new 2048-bit SSH key-pair and store it
$ safe ssh [2048] [path/to/secret]
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Set non-sensitive keys for a secret
$ safe set [path/to/secret] [key]=[value]
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Set auto-generated password in a secret
$ safe gen [path/to/secret] [key]
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SYNOPSIS

There is no common synopsis. Assuming the command exists: safe [options] command [arguments]

PARAMETERS

--help
    Display help information and exit. (Assuming this option exists)

--version
    Display version information and exit. (Assuming this option exists)

-u
    Run command as specified user (common if a safer user is implied).

-c
    Execute the specified command

DESCRIPTION

The `safe` command is not a standard Linux utility. There's no readily available man page or common implementation for a command named precisely `safe`. However, the *idea* of a 'safe' command implies executing programs with reduced privileges or within a restricted environment to mitigate potential security risks. This concept is commonly achieved using other tools like `sudo`, `chroot`, containers (Docker, Podman), or specialized security frameworks such as AppArmor or SELinux. The specific functionality would heavily depend on how a hypothetical 'safe' command were implemented. It would likely involve limiting access to system resources, restricting network capabilities, or isolating the execution environment to prevent malicious code from compromising the entire system. Therefore, without a specific implementation, this description is generic and conceptual. The goal would be to limit damage that a program would otherwise have access to.

CAVEATS

Since 'safe' is not a standard command, its behavior is entirely dependent on its implementation. Do not rely on this command without understanding its source code and security implications. It is vital to understand how resources are restricted and what vulnerabilities might still exist.

EXAMPLE IMPLEMENTATIONS (CONCEPTUAL)

A 'safe' command could be a shell script or compiled program that sets up a chroot environment, changes the user ID to a less privileged user, and then executes the given command. Another example may run the application inside a docker/podman container.

SECURITY CONSIDERATIONS

Any 'safe' command must be carefully designed to avoid security vulnerabilities. For instance, it should prevent the command from escaping the restricted environment or exploiting privilege escalation vulnerabilities. Validation of the command and all its arguments is required to prevent unexpected or malicious behavior.

SEE ALSO

sudo(8), chroot(8), docker(1), podman(1), AppArmor(7), SELinux(8), setuid(2), setgid(2)

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