1.touch file1.txt
chmod ug=rw o=r file1.txt
2.mkdir shared
chmod 777 shared
3.touch file2.txt
chattr +i file2.txt
4. chmod u+s /bin/cat
5.setfacl -m u:redhat:--- file2.txt
6.setfacl -b file2.txt
1.touch file1.txt
chmod ug=rw o=r file1.txt
2.mkdir shared
chmod 777 shared
3.touch file2.txt
chattr +i file2.txt
4. chmod u+s /bin/cat
5.setfacl -m u:redhat:--- file2.txt
6.setfacl -b file2.txt