Create a new user in vsftp in centos 5.3

I recently learned about Linux and want to configure an FTP server on Linux. I used the source code to compile and install vsftpd 2.1.2. The installation process is fine, and some problems are encountered during the configuration process. The following configuration process and solution:

 

1. Method 1:

First create a system user, and then modify the/etc/passwd file

The command is as follows (mytest is the user name ):

# Create a system user and set the password

[Root @ localhost Home] # useradd mytest

[Root @ localhost Home] # passwd mytest

[Root @ localhost Home] # passwd mytest

Changing password for user mytest.

New UNIX password:

Bad password: it is based on a dictionary word

Retype new Unix Password:

Passwd: All authentication tokens updated successfully.

In this way, the user has system permissions, and the following methods are used to remove the user's system permissions.

# Modify the/etc/passwd file [root @ localhost etc] # cd/etc [root @ localhost etc] # vi passwd # Find the added user (mytest) and modify it as follows, before that, make sure that the folder/home/mytest has mytest: X: 501: 50: Test FTP user:/home/mytest/:/sbin/nologin, where mytest indicates the user name; X indicates encryption; 500 indicates uid; 50 indicates GID; here 50 indicates ftp group; test FTP user indicates description of the user;/home/testftp indicates the user's home directory; /bin/nologin indicates that you cannot log on to the system. Method 2: Use the command [root @ localhost etc] # useradd-D/home/mytest/-g ftp-S/sbin/nologin mytest to create a new user. However, the following prompt appears when I log in after creating a user: [root @ localhost etc] # ftp localhostconnected to localhost. localdomain.220 (vsftpd 2.0.5) 530 please login with user and pass.530 please login with user and pass. export OS _v4 rejected as an authentication typename (localhost: Root): mytest331 please specify the password. password: 500 Oops: cannot change Directory:/home/mytestlogin failed. here is the solution: First, check the permissions of the mytest folder [root @ localhost Ho Me] # ls-l mytestdrwxr-XR-x 2 root Root 4096 08-10 mytest found that permissions are not set, here, I use the drwxrwxrwx permission [root @ localhost Home] # chmod 777 mytest to set the permission and restart vsftpd [root @ localhost Home] # after the service vsftpd restart logon, the above problems may occur, this may be a problem with SELinux. The following is a solution: [root @ localhost Home] # setsebool-P ftpd_disable_trans 1. This is about SELinux settings, it may be to allow vsftpd to take effect through SELinux. The P option is valid for a long time. If the P option is not added, the setsebool-P ftpd_disable_trans 1 command may be used after restart to solve the above problems. Now, the new user is created and can be logged in and used. [Root @ localhost Home] # ftp localhostconnected to localhost. localdomain.220 (vsftpd 2.0.5) 530 please login with user and pass.530 please login with user and pass. export OS _v4 rejected as an authentication typename (localhost: Root): mytest331 please specify the password. password: 230 login successful. remote system type is UNIX. using binary mode to transfer files. ftp>