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You configure vsftpd using one configuration file, vsftpdconf Configuration options are simple and kept to a minimum, making it less flexible than ProFTPD, but much faster (see Table 22-2) The vsftpdconf file contains a set of directives in which an option is assigned a value (there are no spaces around the = sign) Options can be on and off flags assigned a YES or NO value, features that take a numeric value, or ones that are assigned a string A default vsftpdconf file is installed in the /etc or /etc reference/etc/vsftpd directory This file lists some of the commonly used options available, with detailed explanations for each Those that are not used are commented out with a preceding # character Option names are very understandable For example, anon_upload_enable allows anonymous users to upload files, whereas anon_mkdir_write_enable lets anonymous users create directories The Man page for vsftpdconf lists all options, providing a detailed explanation for each
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To run vsftpd as a standalone server, you set the listen option to YES This instructs vsftpd to continually listen on its assigned port for requests You can specify the port it listens on with the listen_port option
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listen=YES
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In the following example taken from the vsftpdconf file, anonymous FTP is enabled by assigning the YES value to the anonymous_enable option The local_enable option allows local users on your system to use the FTP server
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# Allow anonymous FTP anonymous_enable=YES # # Uncomment this to allow local users to log in local_enable=YES
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Should you want to let anonymous users log in without providing a password, you can set no_anon_password to YES
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A variety of user permissions control how local users can access files on the server If you want to allow local users to create, rename, and delete files and directories on their account, you have to enable write access with the write_enable option This way, any files they upload, they can also delete Literally, the write_enable option activates a range of commands for changing the file system, including creating, renaming, and deleting both files and directories With user_config_dir you can configure specific users
write_enable=YES
22:
FTP Servers
Option listen listen_port anonymous_enable local_enable no_anon_password anon_upload_enable anon_mkdir_write_enable anon_world_readable_only idle_session_timeout data_connection_timeouts dirmessage_enable ftpd_banner xferlog_enable xferlog_file deny_email_enable userlist_enable userlist_file userlist_deny
Description Set standalone mode Specify port for standalone mode Enable anonymous user access Enable access by local users Specify whether anonymous users must submit a password Enable uploading by anonymous users Allow anonymous users to create directories Make uploaded files read-only to all users Set time limit in seconds for idle sessions Set time limit in seconds for failed connections Display directory messages Display FTP login message Enable logging of transmission transactions Specify log file Enable denying anonymous users, whose email addresses are specified in vsftpdbanned Deny access to users specified in the vsftpuser_list file Deny or allow users access depending on setting of userlist_deny When set to YES, userlist_file denies list users access When set to NO, userlist_file allows list users, and only those users, access Restrict users to their home directories Allow users access to home directories Unless chroot_ local_user is set to YES, this file contains a list of users not allowed access to their home directories Allow access by all users to their home directories Directory for user specific configurability Enable recursive listing
chroot_list_enable chroot_list_file
chroot_local_user user_config_dir ls_recurse_enable
TABLE 22-2 Configuration Options for vsftpdconf
PART VI
You can further specify the permissions for uploaded files using the local_umask option (022 is the default set in vsftpdconf, which allows read and write for the owner and readonly for all other users, 644)
local_umask=022
Part VI:
Internet and Network Services
Because ASCII uploads entail certain security risks, they are turned off by default However, if you are uploading large text files, you may want to enable them in special cases Use ascii_upload_enable to allow ASCII uploads
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