Introduction To Linux at College Of DuPage | Flashcards & Summaries

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Linux Distributions

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Distinct members of the Linux OS family.

•No official "Linux" OS.
•All distros based on Linux kernel.
•Different distros have different additional software and kernel version.
•Kernel + additional software = fully functional OS.
•Also differences in community, release rate, etc.
•Choosing a distro is a matter of:
•Identifying your business needs.
•Familiarity with provided tools.
•There are hundreds of distros.
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Major functions performed by the kernel

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process management, memory management

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net

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networking components such as firewalls

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a module may export a

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symbol indicating that it can provide service to modules

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•Maintains info such as:
•File creation/modification date.
•Size of files.
•Type of files.
•File permissions.
•Provides a structure for data storage.
•Doesn't interpret data; leaves that to programs.
•Vary depending on purpose, type of info stored, how to store data, security, etc.
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File Systems

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Permissions

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Are access rights assigned to users, which enable them to access or modify certain files and directories

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NTFS

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New technology file system. Primary file system for windows. Provide file and folder security, encryption, compression and scalability

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: Enter Shell Commands

The CLI

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A text-based interface between the user and the OS that accepts input in the form of commands.

•Presents prompt to user.
•User enters command to interact with system.
•Important tool in any admin's arsenal.
•Developers and admins use CLI, end users tend to use GUI.
•Comfort at CLI is essential, and an assumed skill.
•A GUI is not required, and may not even be installed.
•You can perform all administration at the CLI.
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Swap Space definition


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A partition on the storage device that is used when the system runs out of physical memory

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setfacl options

- R

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Recursively set ACL options for directories

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The chown Command


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•Changes owner, group, or both for a file or directory.
•You may want other users besides the creator to manage permissions of an object.
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chmod command options

- f

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Hide most error messages

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Q:

Linux Distributions

A:

Distinct members of the Linux OS family.

•No official "Linux" OS.
•All distros based on Linux kernel.
•Different distros have different additional software and kernel version.
•Kernel + additional software = fully functional OS.
•Also differences in community, release rate, etc.
•Choosing a distro is a matter of:
•Identifying your business needs.
•Familiarity with provided tools.
•There are hundreds of distros.
Q:

Major functions performed by the kernel

A:

process management, memory management

Q:

net

A:

networking components such as firewalls

Q:

a module may export a

A:

symbol indicating that it can provide service to modules

Q:
•Maintains info such as:
•File creation/modification date.
•Size of files.
•Type of files.
•File permissions.
•Provides a structure for data storage.
•Doesn't interpret data; leaves that to programs.
•Vary depending on purpose, type of info stored, how to store data, security, etc.
A:

File Systems

Mehr Karteikarten anzeigen
Q:

Permissions

A:

Are access rights assigned to users, which enable them to access or modify certain files and directories

Q:

NTFS

A:

New technology file system. Primary file system for windows. Provide file and folder security, encryption, compression and scalability

Q:

: Enter Shell Commands

The CLI

A:

A text-based interface between the user and the OS that accepts input in the form of commands.

•Presents prompt to user.
•User enters command to interact with system.
•Important tool in any admin's arsenal.
•Developers and admins use CLI, end users tend to use GUI.
•Comfort at CLI is essential, and an assumed skill.
•A GUI is not required, and may not even be installed.
•You can perform all administration at the CLI.
Q:

Swap Space definition


A:

A partition on the storage device that is used when the system runs out of physical memory

Q:

setfacl options

- R

A:

Recursively set ACL options for directories

Q:

The chown Command


A:
•Changes owner, group, or both for a file or directory.
•You may want other users besides the creator to manage permissions of an object.
Q:

chmod command options

- f

A:

Hide most error messages

Introduction to Linux

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