Build ftp service under linux and set permissions
The installed system is centos 6.7
1. ftp installation:
Step1 : Use the yum command to install the ftp service directly
# yum install vsftpd
It is OK to display the installation ; as shown in the figure:
Step2 : FTP service open and close commands
Start: # service vsftpd start
Of course, don't forget that there are also shutdown commands as follows: # service vsftpd stop
Step3 : The installation is successful, start the test
You can use the ftp software to connect locally . The default account is the account and password of the virtual machine.
2. Add the ftp user in linux and set the corresponding directory permissions
step1 : Create user ftpuser
# useradd -d /home/ftpuser ftpuser specifies the home directory of this user, that is, the home directory.
# passwd ftpuser // Set password for ftpuser
step2 : Change the user's corresponding permission settings
# usermod -s /sbin/nologin ftpuser // Limited user ftpuser cannot telnet , only ftp
Of course, if you want to restore to a normal user, you can execute the following command:
# usermod -s /sbin/bash ftpuser
Step3 : Restrict users to only access /home/ftpuser and cannot access other paths
Modify # /etc/vsftpd/vsftpd.conf as follows:
// Do not allow anonymous user access, the default is to allow.
anonymous_enable=YES --> anonymous_enable=NO
Add user list file configuration:
chroot_local_user=YES
chroot_list_enable=YES
Then specify the location of chroot_list_file . Usernames are on one line in this file.
At this point: only users listed in the chroot_list_file can switch to the directory.
If it is not in this file, ftpuser can only see the files in its own directory. As shown in the figure:
Step4 : Restart the vsFTPd server. and add boot
# service vsftpd restart
Add boot start:
As shown in the figure:
Ok！！！