Linux System Administration Basics
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Questions and Answers

The _______ command is used to add new users in Linux system administration.

useradd

Ubuntu can be installed on _______ and laptops.

desktops

In the vi editor, the _______ command is used to enter insert mode.

i

The _______ command is used to change file permissions in Linux.

<p>chmod</p> Signup and view all the answers

A _______ partition is a standard partition on a physical disk.

<p>primary</p> Signup and view all the answers

The _______ command is used to create and manage partitions in Linux.

<p>fdisk</p> Signup and view all the answers

Samba is an open-source implementation of the _______ protocol.

<p>SMB/CIFS</p> Signup and view all the answers

The _______ command is used to test Samba configuration.

<p>testparm</p> Signup and view all the answers

In Linux, the _______ command is used to execute commands with superuser privileges.

<p>sudo</p> Signup and view all the answers

The _______ command is used to access Samba shares.

<p>smbclient</p> Signup and view all the answers

Study Notes

Linux System Administration

  • User Management:
    • useradd command to add new users
    • usermod command to modify existing users
    • userdel command to delete users
  • Package Management:
    • apt-get command for package installation and updates
    • dpkg command for package management
  • Process Management:
    • ps command to list running processes
    • kill command to terminate processes
    • bg and fg commands to manage background and foreground processes

Ubuntu

  • Installation:
    • Can be installed on desktops, laptops, and servers
    • Available in various flavors (e.g., Ubuntu Desktop, Ubuntu Server)
  • Package Management:
    • apt-get command for package installation and updates
    • apt-cache command to search for packages
  • Security:
    • sudo command to execute commands with superuser privileges
    • visudo command to edit sudoers file

vi Editor Commands

  • Basic Commands:
    • i to enter insert mode
    • Esc to exit insert mode
    • :q! to quit without saving changes
    • :wq to save and quit
  • Navigation:
    • h to move left
    • j to move down
    • k to move up
    • l to move right
  • Editing:
    • dd to delete a line
    • p to paste a deleted line
    • u to undo changes

Permissions

  • File Permissions:
    • r for read permission
    • w for write permission
    • x for execute permission
  • chmod Command:
    • chmod command to change file permissions
    • chmod 755 file to set permissions to rwxr-x
  • Access Control Lists (ACLs):
    • setfacl command to set ACLs
    • getfacl command to get ACLs

Partitioning

  • Partition Types:
    • Primary Partition: a standard partition on a physical disk
    • Extended Partition: a special partition that can contain logical partitions
    • Logical Partition: a partition within an extended partition
  • Partitioning Tools:
    • fdisk command to create and manage partitions
    • parted command to create and manage partitions
  • Filesystems:
    • ext2: a traditional Linux filesystem
    • ext3: a journaling filesystem
    • ext4: a modern journaling filesystem

Samba Server

  • What is Samba:
    • An open-source implementation of the SMB/CIFS protocol
    • Allows Linux systems to share files and printers with Windows systems
  • Samba Configuration:
    • smb.conf file to configure Samba
    • testparm command to test Samba configuration
  • Samba Commands:
    • smbclient command to access Samba shares
    • smbstatus command to display Samba status

Linux System Administration

  • User Management:
    • useradd command adds new users
    • usermod command modifies existing users
    • userdel command deletes users
  • Package Management:
    • apt-get command for package installation and updates
    • dpkg command for package management
  • Process Management:
    • ps command lists running processes
    • kill command terminates processes
    • bg and fg commands manage background and foreground processes

Ubuntu

  • Installation:
    • Can be installed on desktops, laptops, and servers
    • Available in various flavors (e.g., Ubuntu Desktop, Ubuntu Server)
  • Package Management:
    • apt-get command for package installation and updates
    • apt-cache command searches for packages
  • Security:
    • sudo command executes commands with superuser privileges
    • visudo command edits sudoers file

vi Editor Commands

  • Basic Commands:
    • i enters insert mode
    • Esc exits insert mode
    • :q! quits without saving changes
    • :wq saves and quits
  • Navigation:
    • h moves left
    • j moves down
    • k moves up
    • l moves right
  • Editing:
    • dd deletes a line
    • p pastes a deleted line
    • u undoes changes

Permissions

  • File Permissions:
    • r is read permission
    • w is write permission
    • x is execute permission
  • chmod Command:
    • chmod command changes file permissions
    • Example: chmod 755 file sets permissions to rwxr-x
  • Access Control Lists (ACLs):
    • setfacl command sets ACLs
    • getfacl command gets ACLs

Partitioning

  • Partition Types:
    • Primary Partition: a standard partition on a physical disk
    • Extended Partition: a special partition that can contain logical partitions
    • Logical Partition: a partition within an extended partition
  • Partitioning Tools:
    • fdisk command creates and manages partitions
    • parted command creates and manages partitions
  • Filesystems:
    • ext2: a traditional Linux filesystem
    • ext3: a journaling filesystem
    • ext4: a modern journaling filesystem

Samba Server

  • What is Samba:
    • An open-source implementation of the SMB/CIFS protocol
    • Allows Linux systems to share files and printers with Windows systems
  • Samba Configuration:
    • smb.conf file configures Samba
    • testparm command tests Samba configuration
  • Samba Commands:
    • smbclient command accesses Samba shares
    • smbstatus command displays Samba status

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Test your knowledge of Linux system administration fundamentals, including user management, package management, and process management. Learn about essential commands like useradd, apt-get, and ps.

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