Question
1. Discuss the importance of properly configuring file and directory permissions on a Linux server. Have them outline any security issues that they have encountered
1. Discuss the importance of properly configuring file and directory permissions on a Linux server. Have them outline any security issues that they have encountered in the past as a result of using the default or less restrictive permissions on files or directories.
2. Discuss their feelings about handling basic directory tasks from the Linux command line. Do they feel that working from the command line increases or decreases their productivity? When working from Windows, do they generally use or avoid using the command line interface?
1. Explain the purpose of the set user ID (SUID) permissions, outlining how it temporarily makes the person accessing a file the owner of that file. Remind students that the permission has no impact when set on a directory. Point out that the SUID is only applied to binary executables.
2. Explain the purpose of the set group ID (SGID) permission, explaining how it allows a user to temporarily become a member of the owner group associated with a file or directory. Provide examples of when the SGID permission is typically set.
3. Explain the purpose of the sticky bit and how it allows users to add files to a directory, but not delete all files in the directory as would the write command.
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