Shulou(Shulou.com)06/02 Report--

Operating environment

1 operating system: redhat 6.5

IP address: 192.168.10.128

Hostname: zred

2 operating system: win 7

IP address: 192.168.10.10

Confirm that the two hosts are interconnected.

Requirements: configuration home directory imprisonment, account blacklist and whitelist.

First, let's restart the service.

Then let's log in to ftp for a MOD user we created before using WIN7.

You can see that by default, we log in to the user's home directory, and we can upload files to the home directory.

At this time, we will find a problem, that is, switching file addresses through CD, which will pose a great threat to our system.

Here we are going to modify the interrupt value of the main configuration file, which is called the home directory.

[root@localhost ~] # vim / etc/vsftpd/vsftpd.conf

Delete the # in front of the callout line

If you restart the service, you will not be able to change directories.

Black and white list

This feature is managed in user_list under the vsftp directory.

[root@localhost ~] # vim / etc/vsftpd/user_list

Let's add a user to it.

[root@localhost vsftpd] # echo "mod" > > user_list

Restart the service and see if you can log in again.

Just don't enter the password.

This feature big switch can be seen on the last line of the main configuration file.

If you add a line of deny, the list becomes a whitelist, and only the users on the list can log in to ftp

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