Did the permissions change? What are the permissions of myFile.txt?

File Permissions
Visualize and Change the File Permissions.
a. Navigate to /home/analyst/lab.support.files/scripts/.



[analyst@secOps ~]$ cd lab.support.files/scripts/

b. Use the ls -l command to display file permissions.



[analyst@secOps scripts]$ ls -l

total 60

-rwxr-xr-x 1 analyst analyst 190 Jun 13 09:45 configure_as_dhcp.sh

-rwxr-xr-x 1 analyst analyst 192 Jun 13 09:45 configure_as_static.sh

-rwxr-xr-x 1 analyst analyst 3459 Jul 18 10:09 cyberops_extended_topo_no_fw.py

-rwxr-xr-x 1 analyst analyst 4062 Jul 18 10:09 cyberops_extended_topo.py

-rwxr-xr-x 1 analyst analyst 3669 Jul 18 10:10 cyberops_topo.py

-rw-r--r-- 1 analyst analyst 2871 Apr 28 11:27 cyops.mn

-rwxr-xr-x 1 analyst analyst 458 May 1 13:50 fw_rules

-rwxr-xr-x 1 analyst analyst 70 Apr 28 11:27 mal_server_start.sh

drwxr-xr-x 2 analyst analyst 4096 Jun 13 09:55 net_configuration_files

-rwxr-xr-x 1 analyst analyst 65 Apr 28 11:27 reg_server_start.sh

-rwxr-xr-x 1 analyst analyst 189 Dec 15 2016 start_ELK.sh

-rwxr-xr-x 1 analyst analyst 85 Dec 22 2016 start_miniedit.sh

-rwxr-xr-x 1 analyst analyst 76 Jun 22 11:38 start_pox.sh

-rwxr-xr-x 1 analyst analyst 106 Jun 27 09:47 start_snort.sh

-rwxr-xr-x 1 analyst analyst 61 May 4 11:45 start_tftpd.sh

c. The touch command is very simple and useful. It allows for the quick creation of an empty text file. Use the command below to create an empty file in the /mnt directory:



[analyst@secOps scripts]$ touch /mnt/myNewFile.txt

touch: cannot touch '/mnt/myNewFile.txt': Permission denied



[analyst@secOps ~]$ ls -l /mnt

total 4

drwxr-xr-x 2 root root 4096 Mar 3 11:13 second_drive



[analyst@secOps ~]$ ls -ld /mnt

drwxr-xr-x 3 root root 4096 Mar 3 15:43 /mnt

d. The chmod command is used to change the permissions of a file or directory. As before, mount the /dev/sdb1 partition on the /home/analyst/second_drive directory created earlier in this lab:



[analyst@secOps scripts]$ sudo mount /dev/sdb1 ~/second_drive/

e. Change to the second_drive directory and list the contents of it:



[analyst@secOps scripts]$ cd ~/second_drive

[analyst@secOps second_drive]$ ls -l

total 20

drwx------ 2 root root 16384 Mar 3 10:59 lost+found

-rw-r--r-- 1 root root 183 Mar 3 15:42 myFile.txt

f. Use the chmod command to change the permissions of myFile.txt.



[analyst@secOps second_drive]$ sudo chmod 665 myFile.txt

[analyst@secOps second_drive]$ ls -l

total 20

drwx------ 2 root root 16384 Mar 3 10:59 lost+found

-rw-rw-r-x 1 root root 183 Mar 3 15:42 myFile.txt

-rw-rw-r-x