To check the permissions of a directory in Linux, you can use the ls command with the -l option. This will list all files and directories in the current directory and display their permissions.

For example, if we are in the /home/user directory and we want to check the permissions of a directory called “mydir”, we can use the following command:

$ ls -l mydir

This will output something like this:

drwxr-xr-x 2 user user 4096 Aug 28 16:30 mydir

The first character (d) indicates the type of file system object (in this case, a directory). The next nine characters represent the permissions for the directory and are broken down into three sets of three characters. The first three characters (rwx) represent the permissions for the owner of the directory (user), the second three characters (r-x) represent the permissions for members of the group that owns the directory (also user), and the final three characters (r-x) represent the permissions for all other users.

In this example, the owner has read, write, and execute permissions (rwx), the group has read and execute permissions (r-x), and all other users have read and execute permissions (r-x).

1. Connect your modem to the WAN port on your TP-Link router using an Ethernet cable.

2. Connect your computer to one of the LAN ports on your TP-Link router using an Ethernet cable.

3. Open a web browser and type in the IP address of your TP-Link router (usually 192.168.1.1).

4. Enter the administrator username and password.

5. Go to the Wireless Settings page and configure your wireless settings, such as the SSID and password.

6. Save your changes and reboot the router.

7. Reconnect your computer to the wireless network using the new SSID and password.