This lab was about understanding Linux file ownership and modifying file permissions. I learned how to change file permissions using the octal method, set default permissions with umask, and set or unset SGID permissions.

One challenge I faced was applying special permissions specifically setting SGID because I wasn’t sure what the command did or how to use it. I solved this by reviewing my lecture notes and looking at the examples. Overall, this lab helped me understand how to modify both basic and special permissions.