Securing Unix Systems

FreeBSD 11    |    Beginner
  • 12 videos | 57m 49s
  • Includes Assessment
  • Earns a Badge
Rating 4.4 of 62 users Rating 4.4 of 62 users (62)
Secure your Unix system and explore methods for controlling file system and command execution access. During this course you will start by learning how to use chmod and changemode commands to set standard Unix file system permissions. Next, learn how to use an ACL (Access Control List) to assign user access and specify allowed operations. Understand Unix special permission bits to control read, write, and execute permissions for file users. Observe how to distinguish access privilege levels for Unix files, including the root user. Other topics on this course include the following: Configure Sudo to enable standard users to run privileged commands; Create a firewall to block unwanted network access; Configure and test OpenBSD PF Firewall rules.

WHAT YOU WILL LEARN

  • Describe how unix file system permissions work
    Use chmod to set file system permissions
    Describe how acls provide added file system security
    Use setfacl to assign acl file system permissions
    Explain the purpose of unix special permission bits
    Use chmod to set special permission bits
  • Identify the importance of not logging in as root
    Enable standard users to run privileged commands
    Describe how firewall solutions protect hosts
    Protect a unix host from unwanted network traffic
    Ensure configured firewall rules are in effect
    Configure unix file system permissions, command execution, and firewall settings

IN THIS COURSE

  • 4m 48s
    After completing this video, you will be able to describe how the Unix file system permissions work. FREE ACCESS
  • 6m 3s
    In this video, find out how to use chmod to change file system permissions. FREE ACCESS
  • Locked
    3.  File System Extended ACLs
    2m 46s
    After completing this video, you will be able to describe how Access Control Lists provide added file system security. FREE ACCESS
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    4.  Assigning Permissions Using ACLs
    4m 36s
    Learn how to use setfacl to assign file system permissions using ACLs. FREE ACCESS
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    5.  Special Permission Bits
    6m 14s
    After completing this video, you will be able to explain the purpose of Unix special permission bits. FREE ACCESS
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    6.  Assigning Special Permissions
    5m 38s
    In this video, you will use chmod to set special permission bits. FREE ACCESS
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    7.  Elevated Privileges
    4m 25s
    Find out how to identify the importance of not logging in as the root user. FREE ACCESS
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    8.  Configuring Sudo
    5m 25s
    In this video, you will enable standard users to run commands with elevated privileges. FREE ACCESS
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    9.  Firewall Overview
    4m 35s
    Upon completion of this video, you will be able to describe how firewall solutions protect hosts. FREE ACCESS
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    10.  Configuring the OpenBSD PF Firewall
    4m 10s
    Learn how to protect a Unix host from unwanted network traffic. FREE ACCESS
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    11.  Testing Firewall Settings
    2m 24s
    Find out how to ensure that configured firewall rules are in effect. FREE ACCESS
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    12.  Exercise: Control File System and Network Access
    6m 44s
    In this video, you will configure Unix file system permissions, command execution, and firewall settings. FREE ACCESS

EARN A DIGITAL BADGE WHEN YOU COMPLETE THIS COURSE

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