[Centos configuration 1] FTP Configuration

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/

1. Install
Generally, vsftd is automatically installed on centos. If it is not installed, perform the following steps:
Yum-y install vsftpd
Touch/var/log/vsftpd. log # create a vsftp Log File
In centos, you can build a simple anonymous FTP. You can access FTP: // yourip, but this FTP does not have any permissions.
2. Anonymous FTP-based setup
Refer to the previous vsftpd configuration articles in this blog.
3. Virtual user-based FTP setup
Virtual users do not use real accounts, but map accounts and Set permissions by some means.
1) We configure the following in/etc/vsftpd. conf:
Anonymous_enable = No: anonymous access is not allowed.
Local_enable = Yes indicates that the local user can access it. Note: If a virtual host user is used, all virtual users cannot access the project if the project is set to No.
Chroot_list_enable = yes so that the user cannot leave the main directory
Xferlog_file =/var/log/vsftpd. Log sets the path for saving service logs of vsftpd. Note: This file does not exist by default. Must be manually touch
Ascii_upload_enable = Yes
Ascii_download_enable = yes: supports the upload and download functions in ASCII mode.
Pam_service_name = vsftpd PAM Authentication file name. Pam will be authenticated according to/etc/PAM. d/vsftpd
The following are important configuration items for vsftpd virtual user support. By default, vsftpd. conf does not contain these configuration items. You need to manually add the configuration.
Guest_enable = Yes sets to enable the virtual user function.
Guest_username = FTP specifies the host user of the virtual user. -Centos already has built-in ftp users.
User_config_dir =/etc/vsftpd/vuser_conf set the path for storing the configuration file of the virtual user's personal vsftp. Configuration file for storing virtual user personality (configuration file name = virtual user name)
2) create a chroot list and add the user ftp:
Touch/etc/vsftpd/chroot_list
Echo ftp>/etc/vsftpd/chroot_list
3) perform authentication:
First, install the Berkeley dB tool. Many people cannot find db_load. The problem is that this package is not installed.
Yum install db4 db4-utils
Then, create the User Password text/etc/vsftpd/vuser_passwd.txt, note that the odd line is the user name, even the line is the password
Ftpuser1
Ftppass1
Ftpuser2
Ftppass2
Next, generate the database file for virtual user authentication
Db_load-T-t hash-F/etc/vsftpd/vuser_passwd.txt/etc/vsftpd/vuser_passwd.db
Then, edit the authentication file/etc/PAM. d/vsftpd and comment out all the original statements.
Add the following two sentences:
Auth required pam_userdb.so DB =/etc/vsftpd/vuser_passwd
Account required pam_userdb.so DB =/etc/vsftpd/vuser_passwd
Finally, create a virtual user profile configuration file
Mkdir/etc/vsftpd/vuser_conf/
VI/etc/vsftpd/vuser_conf/ftpuser1
The content is as follows:
Local_root =/opt/var/ftp1 root directory of the virtual user (based on actual modification)
Write_enable = Yes writable
Anon_umask = 022 mask
Anon_world_readable_only = No
Anon_upload_enable = Yes
Anon_mkdir_write_enable = Yes
Anon_other_write_enable = Yes
4. Start the vsftp Server
Mkdir/opt/var/FTP/ftpuser1
Chmod 777/opt/var/FTP/ftpuser1
Service vsftpd start
Troubleshootings:
1.553 cocould not create File
This is generally a problem with SELinux. Set a value for SELinux and restart the server.
Setsebool-P ftpd_disable_trans 1
Service vsftpd restart
2.500 Oops: Bad bool value in config file for: write_enable
Note that there is no space at the end of each line in your configuration file. Generally, an error occurs when there are extra spaces.

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/