NAME¶
vsftpd.conf - config file for vsftpd
DESCRIPTION¶
vsftpd.conf may be used to control various aspects of vsftpd's behaviour. By
default, vsftpd looks for this file at the location
/etc/vsftpd.conf.
However, you may override this by specifying a command line argument to
vsftpd. The command line argument is the pathname of the configuration file
for vsftpd. This behaviour is useful because you may wish to use an advanced
inetd such as
xinetd to launch vsftpd with different configuration
files on a per virtual host basis.
The format of vsftpd.conf is very simple. Each line is either a comment or a
directive. Comment lines start with a # and are ignored. A directive line has
the format:
option=value
It is important to note that it is an error to put any space between the option,
= and value.
Each setting has a compiled in default which may be modified in the
configuration file.
BOOLEAN OPTIONS¶
Below is a list of boolean options. The value for a boolean option may be set to
YES or
NO.
- allow_anon_ssl
- Only applies if ssl_enable is active. If set to YES,
anonymous users will be allowed to use secured SSL connections.
Default: NO
- anon_mkdir_write_enable
- If set to YES, anonymous users will be permitted to create
new directories under certain conditions. For this to work, the option
write_enable must be activated, and the anonymous ftp user must
have write permission on the parent directory.
Default: NO
- anon_other_write_enable
- If set to YES, anonymous users will be permitted to perform
write operations other than upload and create directory, such as deletion
and renaming. This is generally not recommended but included for
completeness.
Default: NO
- anon_upload_enable
- If set to YES, anonymous users will be permitted to upload
files under certain conditions. For this to work, the option
write_enable must be activated, and the anonymous ftp user must
have write permission on desired upload locations. This setting is also
required for virtual users to upload; by default, virtual users are
treated with anonymous (i.e. maximally restricted) privilege.
Default: NO
- anon_world_readable_only
- When enabled, anonymous users will only be allowed to
download files which are world readable. This is recognising that the ftp
user may own files, especially in the presence of uploads.
Default: YES
- anonymous_enable
- Controls whether anonymous logins are permitted or not. If
enabled, both the usernames ftp and anonymous are recognised
as anonymous logins.
Default: YES
- ascii_download_enable
- When enabled, ASCII mode data transfers will be honoured on
downloads.
Default: NO
- ascii_upload_enable
- When enabled, ASCII mode data transfers will be honoured on
uploads.
Default: NO
- async_abor_enable
- When enabled, a special FTP command known as "async
ABOR" will be enabled. Only ill advised FTP clients will use this
feature. Additionally, this feature is awkward to handle, so it is
disabled by default. Unfortunately, some FTP clients will hang when
cancelling a transfer unless this feature is available, so you may wish to
enable it.
Default: NO
- background
- When enabled, and vsftpd is started in "listen"
mode, vsftpd will background the listener process. i.e. control will
immediately be returned to the shell which launched vsftpd.
Default: NO
- check_shell
- Note! This option only has an effect for non-PAM builds of
vsftpd. If disabled, vsftpd will not check /etc/shells for a valid user
shell for local logins.
Default: YES
- chmod_enable
- When enabled, allows use of the SITE CHMOD command. NOTE!
This only applies to local users. Anonymous users never get to use SITE
CHMOD.
Default: YES
- chown_uploads
- If enabled, all anonymously uploaded files will have the
ownership changed to the user specified in the setting
chown_username. This is useful from an administrative, and perhaps
security, standpoint.
Default: NO
- chroot_list_enable
- If activated, you may provide a list of local users who are
placed in a chroot() jail in their home directory upon login. The meaning
is slightly different if chroot_local_user is set to YES. In this case,
the list becomes a list of users which are NOT to be placed in a chroot()
jail. By default, the file containing this list is
/etc/vsftpd.chroot_list, but you may override this with the
chroot_list_file setting.
Default: NO
- chroot_local_user
- If set to YES, local users will be (by default) placed in a
chroot() jail in their home directory after login. Warning: This
option has security implications, especially if the users have upload
permission, or shell access. Only enable if you know what you are doing.
Note that these security implications are not vsftpd specific. They apply
to all FTP daemons which offer to put local users in chroot() jails.
Default: NO
- connect_from_port_20
- This controls whether PORT style data connections use port
20 (ftp-data) on the server machine. For security reasons, some clients
may insist that this is the case. Conversely, disabling this option
enables vsftpd to run with slightly less privilege.
Default: NO (but the sample config file enables it)
- debug_ssl
- If true, OpenSSL connection diagnostics are dumped to the
vsftpd log file. (Added in v2.0.6).
Default: NO
- delete_failed_uploads
- If true, any failed upload files are deleted. (Added in
v2.0.7).
Default: NO
- deny_email_enable
- If activated, you may provide a list of anonymous password
e-mail responses which cause login to be denied. By default, the file
containing this list is /etc/vsftpd.banned_emails, but you may override
this with the banned_email_file setting.
Default: NO
- dirlist_enable
- If set to NO, all directory list commands will give
permission denied.
Default: YES
- dirmessage_enable
- If enabled, users of the FTP server can be shown messages
when they first enter a new directory. By default, a directory is scanned
for the file .message, but that may be overridden with the configuration
setting message_file.
Default: NO (but the sample config file enables it)
- download_enable
- If set to NO, all download requests will give permission
denied.
Default: YES
- dual_log_enable
- If enabled, two log files are generated in parallel, going
by default to /var/log/xferlog and /var/log/vsftpd.log. The
former is a wu-ftpd style transfer log, parseable by standard tools. The
latter is vsftpd's own style log.
Default: NO
- force_dot_files
- If activated, files and directories starting with . will be
shown in directory listings even if the "a" flag was not used by
the client. This override excludes the "." and ".."
entries.
Default: NO
- force_anon_data_ssl
- Only applies if ssl_enable is activated. If
activated, all anonymous logins are forced to use a secure SSL connection
in order to send and receive data on data connections.
Default: NO
- force_anon_logins_ssl
- Only applies if ssl_enable is activated. If
activated, all anonymous logins are forced to use a secure SSL connection
in order to send the password.
Default: NO
- force_local_data_ssl
- Only applies if ssl_enable is activated. If
activated, all non-anonymous logins are forced to use a secure SSL
connection in order to send and receive data on data connections.
Default: YES
- force_local_logins_ssl
- Only applies if ssl_enable is activated. If
activated, all non-anonymous logins are forced to use a secure SSL
connection in order to send the password.
Default: YES
- guest_enable
- If enabled, all non-anonymous logins are classed as
"guest" logins. A guest login is remapped to the user specified
in the guest_username setting.
Default: NO
- hide_ids
- If enabled, all user and group information in directory
listings will be displayed as "ftp".
Default: NO
- implicit_ssl
- If enabled, an SSL handshake is the first thing expect on
all connections (the FTPS protocol). To support explicit SSL and/or plain
text too, a separate vsftpd listener process should be run.
Default: NO
- listen
- If enabled, vsftpd will run in standalone mode. This means
that vsftpd must not be run from an inetd of some kind. Instead, the
vsftpd executable is run once directly. vsftpd itself will then take care
of listening for and handling incoming connections.
Default: NO
- listen_ipv6
- Like the listen parameter, except vsftpd will listen on an
IPv6 socket instead of an IPv4 one. This parameter and the listen
parameter are mutually exclusive.
Default: NO
- local_enable
- Controls whether local logins are permitted or not. If
enabled, normal user accounts in /etc/passwd (or wherever your PAM config
references) may be used to log in. This must be enable for any
non-anonymous login to work, including virtual users.
Default: NO
- lock_upload_files
- When enabled, all uploads proceed with a write lock on the
upload file. All downloads proceed with a shared read lock on the download
file. WARNING! Before enabling this, be aware that malicious readers could
starve a writer wanting to e.g. append a file.
Default: YES
- log_ftp_protocol
- When enabled, all FTP requests and responses are logged,
providing the option xferlog_std_format is not enabled. Useful for
debugging.
Default: NO
- ls_recurse_enable
- When enabled, this setting will allow the use of "ls
-R". This is a minor security risk, because a ls -R at the top level
of a large site may consume a lot of resources.
Default: NO
- mdtm_write
- When enabled, this setting will allow MDTM to set file
modification times (subject to the usual access checks).
Default: YES
- no_anon_password
- When enabled, this prevents vsftpd from asking for an
anonymous password - the anonymous user will log straight in.
Default: NO
- no_log_lock
- When enabled, this prevents vsftpd from taking a file lock
when writing to log files. This option should generally not be enabled. It
exists to workaround operating system bugs such as the Solaris / Veritas
filesystem combination which has been observed to sometimes exhibit hangs
trying to lock log files.
Default: NO
- one_process_model
- If you have a Linux 2.4 kernel, it is possible to use a
different security model which only uses one process per connection. It is
a less pure security model, but gains you performance. You really don't
want to enable this unless you know what you are doing, and your site
supports huge numbers of simultaneously connected users.
Default: NO
- passwd_chroot_enable
- If enabled, along with chroot_local_user , then a
chroot() jail location may be specified on a per-user basis. Each user's
jail is derived from their home directory string in /etc/passwd. The
occurrence of /./ in the home directory string denotes that the jail is at
that particular location in the path.
Default: NO
- pasv_addr_resolve
- Set to YES if you want to use a hostname (as opposed to IP
address) in the pasv_address option.
Default: NO
- pasv_enable
- Set to NO if you want to disallow the PASV method of
obtaining a data connection.
Default: YES
- pasv_promiscuous
- Set to YES if you want to disable the PASV security check
that ensures the data connection originates from the same IP address as
the control connection. Only enable if you know what you are doing! The
only legitimate use for this is in some form of secure tunnelling scheme,
or perhaps to facilitate FXP support.
Default: NO
- port_enable
- Set to NO if you want to disallow the PORT method of
obtaining a data connection.
Default: YES
- port_promiscuous
- Set to YES if you want to disable the PORT security check
that ensures that outgoing data connections can only connect to the
client. Only enable if you know what you are doing!
Default: NO
- require_cert
- If set to yes, all SSL client connections are required to
present a client certificate. The degree of validation applied to this
certificate is controlled by validate_cert (Added in v2.0.6).
Default: NO
- require_ssl_reuse
- If set to yes, all SSL data connections are required to
exhibit SSL session reuse (which proves that they know the same master
secret as the control channel). Although this is a secure default, it may
break many FTP clients, so you may want to disable it. For a discussion of
the consequences, see
http://scarybeastsecurity.blogspot.com/2009/02/vsftpd-210-released.html
(Added in v2.1.0).
Default: YES
- run_as_launching_user
- Set to YES if you want vsftpd to run as the user which
launched vsftpd. This is useful where root access is not available.
MASSIVE WARNING! Do NOT enable this option unless you totally know what
you are doing, as naive use of this option can create massive security
problems. Specifically, vsftpd does not / cannot use chroot technology to
restrict file access when this option is set (even if launched by root). A
poor substitute could be to use a deny_file setting such as
{/*,*..*}, but the reliability of this cannot compare to chroot, and
should not be relied on. If using this option, many restrictions on other
options apply. For example, options requiring privilege such as
non-anonymous logins, upload ownership changing, connecting from port 20
and listen ports less than 1024 are not expected to work. Other options
may be impacted.
Default: NO
- secure_email_list_enable
- Set to YES if you want only a specified list of e-mail
passwords for anonymous logins to be accepted. This is useful as a
low-hassle way of restricting access to low-security content without
needing virtual users. When enabled, anonymous logins are prevented unless
the password provided is listed in the file specified by the
email_password_file setting. The file format is one password per
line, no extra whitespace. The default filename is
/etc/vsftpd.email_passwords.
Default: NO
- session_support
- This controls whether vsftpd attempts to maintain sessions
for logins. If vsftpd is maintaining sessions, it will try and update utmp
and wtmp. It will also open a pam_session if using PAM to authenticate,
and only close this upon logout. You may wish to disable this if you do
not need session logging, and you wish to give vsftpd more opportunity to
run with less processes and / or less privilege. NOTE - utmp and wtmp
support is only provided with PAM enabled builds.
Default: NO
- setproctitle_enable
- If enabled, vsftpd will try and show session status
information in the system process listing. In other words, the reported
name of the process will change to reflect what a vsftpd session is doing
(idle, downloading etc). You probably want to leave this off for security
purposes.
Default: NO
- ssl_enable
- If enabled, and vsftpd was compiled against OpenSSL, vsftpd
will support secure connections via SSL. This applies to the control
connection (including login) and also data connections. You'll need a
client with SSL support too. NOTE!! Beware enabling this option. Only
enable it if you need it. vsftpd can make no guarantees about the security
of the OpenSSL libraries. By enabling this option, you are declaring that
you trust the security of your installed OpenSSL library.
Default: NO
- ssl_request_cert
- If enabled, vsftpd will request (but not necessarily
require; see
require_cert)acertificateonincomingSSLconnections.Normallythis
should not cause any trouble at all, but IBM zOS seems to have issues.
(New in v2.0.7).
Default: YES
- ssl_sslv2
- Only applies if ssl_enable is activated. If enabled,
this option will permit SSL v2 protocol connections. TLS v1 connections
are preferred.
Default: NO
- ssl_sslv3
- Only applies if ssl_enable is activated. If enabled,
this option will permit SSL v3 protocol connections. TLS v1 connections
are preferred.
Default: NO
- ssl_tlsv1
- Only applies if ssl_enable is activated. If enabled,
this option will permit TLS v1 protocol connections. TLS v1 connections
are preferred.
Default: YES
- strict_ssl_read_eof
- If enabled, SSL data uploads are required to terminate via
SSL, not an EOF on the socket. This option is required to be sure that an
attacker did not terminate an upload prematurely with a faked TCP FIN.
Unfortunately, it is not enabled by default because so few clients get it
right. (New in v2.0.7).
Default: NO
- strict_ssl_write_shutdown
- If enabled, SSL data downloads are required to terminate
via SSL, not an EOF on the socket. This is off by default as I was unable
to find a single FTP client that does this. It is minor. All it affects is
our ability to tell whether the client confirmed full receipt of the file.
Even without this option, the client is able to check the integrity of the
download. (New in v2.0.7).
Default: NO
- syslog_enable
- If enabled, then any log output which would have gone to
/var/log/vsftpd.log goes to the system log instead. Logging is done under
the FTPD facility.
Default: NO
- tcp_wrappers
- If enabled, and vsftpd was compiled with tcp_wrappers
support, incoming connections will be fed through tcp_wrappers access
control. Furthermore, there is a mechanism for per-IP based configuration.
If tcp_wrappers sets the VSFTPD_LOAD_CONF environment variable, then the
vsftpd session will try and load the vsftpd configuration file specified
in this variable.
Default: NO
- text_userdb_names
- By default, numeric IDs are shown in the user and group
fields of directory listings. You can get textual names by enabling this
parameter. It is off by default for performance reasons.
Default: NO
- tilde_user_enable
- If enabled, vsftpd will try and resolve pathnames such as
~chris/pics, i.e. a tilde followed by a username. Note that vsftpd will
always resolve the pathnames ~ and ~/something (in this case the ~
resolves to the initial login directory). Note that ~user paths will only
resolve if the file /etc/passwd may be found within the _current_
chroot() jail.
Default: NO
- use_localtime
- If enabled, vsftpd will display directory listings with the
time in your local time zone. The default is to display GMT. The times
returned by the MDTM FTP command are also affected by this option.
Default: NO
- use_sendfile
- An internal setting used for testing the relative benefit
of using the sendfile() system call on your platform.
Default: YES
- userlist_deny
- This option is examined if userlist_enable is
activated. If you set this setting to NO, then users will be denied login
unless they are explicitly listed in the file specified by
userlist_file. When login is denied, the denial is issued before
the user is asked for a password.
Default: YES
- userlist_enable
- If enabled, vsftpd will load a list of usernames, from the
filename given by userlist_file. If a user tries to log in using a
name in this file, they will be denied before they are asked for a
password. This may be useful in preventing cleartext passwords being
transmitted. See also userlist_deny.
Default: NO
- validate_cert
- If set to yes, all SSL client certificates received must
validate OK. Self-signed certs do not constitute OK validation. (New in
v2.0.6).
Default: NO
- virtual_use_local_privs
- If enabled, virtual users will use the same privileges as
local users. By default, virtual users will use the same privileges as
anonymous users, which tends to be more restrictive (especially in terms
of write access).
Default: NO
- write_enable
- This controls whether any FTP commands which change the
filesystem are allowed or not. These commands are: STOR, DELE, RNFR, RNTO,
MKD, RMD, APPE and SITE.
Default: NO
- xferlog_enable
- If enabled, a log file will be maintained detailling
uploads and downloads. By default, this file will be placed at
/var/log/vsftpd.log, but this location may be overridden using the
configuration setting vsftpd_log_file.
Default: NO (but the sample config file enables it)
- xferlog_std_format
- If enabled, the transfer log file will be written in
standard xferlog format, as used by wu-ftpd. This is useful because you
can reuse existing transfer statistics generators. The default format is
more readable, however. The default location for this style of log file is
/var/log/xferlog, but you may change it with the setting
xferlog_file.
Default: NO
NUMERIC OPTIONS¶
Below is a list of numeric options. A numeric option must be set to a non
negative integer. Octal numbers are supported, for convenience of the umask
options. To specify an octal number, use 0 as the first digit of the number.
- accept_timeout
- The timeout, in seconds, for a remote client to establish
connection with a PASV style data connection.
Default: 60
- anon_max_rate
- The maximum data transfer rate permitted, in bytes per
second, for anonymous clients.
Default: 0 (unlimited)
- anon_umask
- The value that the umask for file creation is set to for
anonymous users. NOTE! If you want to specify octal values, remember the
"0" prefix otherwise the value will be treated as a base 10
integer!
Default: 077
- chown_upload_mode
- The file mode to force for chown()ed anonymous uploads.
(Added in v2.0.6).
Default: 0600
- connect_timeout
- The timeout, in seconds, for a remote client to respond to
our PORT style data connection.
Default: 60
- data_connection_timeout
- The timeout, in seconds, which is roughly the maximum time
we permit data transfers to stall for with no progress. If the timeout
triggers, the remote client is kicked off.
Default: 300
- delay_failed_login
- The number of seconds to pause prior to reporting a failed
login.
Default: 1
- delay_successful_login
- The number of seconds to pause prior to allowing a
successful login.
Default: 0
- file_open_mode
- The permissions with which uploaded files are created.
Umasks are applied on top of this value. You may wish to change to 0777 if
you want uploaded files to be executable.
Default: 0666
- ftp_data_port
- The port from which PORT style connections originate (as
long as the poorly named connect_from_port_20 is enabled).
Default: 20
- idle_session_timeout
- The timeout, in seconds, which is the maximum time a remote
client may spend between FTP commands. If the timeout triggers, the remote
client is kicked off.
Default: 300
- listen_port
- If vsftpd is in standalone mode, this is the port it will
listen on for incoming FTP connections.
Default: 21
- local_max_rate
- The maximum data transfer rate permitted, in bytes per
second, for local authenticated users.
Default: 0 (unlimited)
- local_umask
- The value that the umask for file creation is set to for
local users. NOTE! If you want to specify octal values, remember the
"0" prefix otherwise the value will be treated as a base 10
integer!
Default: 077
- max_clients
- If vsftpd is in standalone mode, this is the maximum number
of clients which may be connected. Any additional clients connecting will
get an error message.
Default: 0 (unlimited)
- max_login_fails
- After this many login failures, the session is killed.
Default: 3
- max_per_ip
- If vsftpd is in standalone mode, this is the maximum number
of clients which may be connected from the same source internet address. A
client will get an error message if they go over this limit.
Default: 0 (unlimited)
- pasv_max_port
- The maximum port to allocate for PASV style data
connections. Can be used to specify a narrow port range to assist
firewalling.
Default: 0 (use any port)
- pasv_min_port
- The minimum port to allocate for PASV style data
connections. Can be used to specify a narrow port range to assist
firewalling.
Default: 0 (use any port)
- trans_chunk_size
- You probably don't want to change this, but try setting it
to something like 8192 for a much smoother bandwidth limiter.
Default: 0 (let vsftpd pick a sensible setting)
STRING OPTIONS¶
Below is a list of string options.
- anon_root
- This option represents a directory which vsftpd will try to
change into after an anonymous login. Failure is silently ignored.
Default: (none)
- banned_email_file
- This option is the name of a file containing a list of
anonymous e-mail passwords which are not permitted. This file is consulted
if the option deny_email_enable is enabled.
Default: /etc/vsftpd.banned_emails
- banner_file
- This option is the name of a file containing text to
display when someone connects to the server. If set, it overrides the
banner string provided by the ftpd_banner option.
Default: (none)
- ca_certs_file
- This option is the name of a file to load Certificate
Authority certs from, for the purpose of validating client certs. The
loaded certs are also advertised to the client, to cater for TLSv1.0
clients such as the z/OS FTP client. Regrettably, the default SSL CA cert
paths are not used, because of vsftpd's use of restricted filesystem
spaces (chroot). (Added in v2.0.6).
Default: (none)
- chown_username
- This is the name of the user who is given ownership of
anonymously uploaded files. This option is only relevant if another
option, chown_uploads, is set.
Default: root
- chroot_list_file
- The option is the name of a file containing a list of local
users which will be placed in a chroot() jail in their home directory.
This option is only relevant if the option chroot_list_enable is
enabled. If the option chroot_local_user is enabled, then the list
file becomes a list of users to NOT place in a chroot() jail.
Default: /etc/vsftpd.chroot_list
- cmds_allowed
- This options specifies a comma separated list of allowed
FTP commands (post login. USER, PASS and QUIT and others are always
allowed pre-login). Other commands are rejected. This is a powerful method
of really locking down an FTP server. Example: cmds_allowed=PASV,RETR,QUIT
Default: (none)
- cmds_denied
- This options specifies a comma separated list of denied FTP
commands (post login. USER, PASS, QUIT and others are always allowed
pre-login). If a command appears on both this and cmds_allowed then
the denial takes precedence. (Added in v2.1.0).
Default: (none)
- deny_file
- This option can be used to set a pattern for filenames (and
directory names etc.) which should not be accessible in any way. The
affected items are not hidden, but any attempt to do anything to them
(download, change into directory, affect something within directory etc.)
will be denied. This option is very simple, and should not be used for
serious access control - the filesystem's permissions should be used in
preference. However, this option may be useful in certain virtual user
setups. In particular aware that if a filename is accessible by a variety
of names (perhaps due to symbolic links or hard links), then care must be
taken to deny access to all the names. Access will be denied to items if
their name contains the string given by hide_file, or if they match the
regular expression specified by hide_file. Note that vsftpd's regular
expression matching code is a simple implementation which is a subset of
full regular expression functionality. Because of this, you will need to
carefully and exhaustively test any application of this option. And you
are recommended to use filesystem permissions for any important security
policies due to their greater reliability. Supported regex syntax is any
number of *, ? and unnested {,} operators. Regex matching is only
supported on the last component of a path, e.g. a/b/? is supported but
a/?/c is not. Example: deny_file={*.mp3,*.mov,.private}
Default: (none)
- dsa_cert_file
- This option specifies the location of the DSA certificate
to use for SSL encrypted connections.
Default: (none - an RSA certificate suffices)
- dsa_private_key_file
- This option specifies the location of the DSA private key
to use for SSL encrypted connections. If this option is not set, the
private key is expected to be in the same file as the certificate.
Default: (none)
- email_password_file
- This option can be used to provide an alternate file for
usage by the secure_email_list_enable setting.
Default: /etc/vsftpd.email_passwords
- ftp_username
- This is the name of the user we use for handling anonymous
FTP. The home directory of this user is the root of the anonymous FTP
area.
Default: ftp
- ftpd_banner
- This string option allows you to override the greeting
banner displayed by vsftpd when a connection first comes in.
Default: (none - default vsftpd banner is displayed)
- guest_username
- See the boolean setting guest_enable for a
description of what constitutes a guest login. This setting is the real
username which guest users are mapped to.
Default: ftp
- hide_file
- This option can be used to set a pattern for filenames (and
directory names etc.) which should be hidden from directory listings.
Despite being hidden, the files / directories etc. are fully accessible to
clients who know what names to actually use. Items will be hidden if their
names contain the string given by hide_file, or if they match the regular
expression specified by hide_file. Note that vsftpd's regular expression
matching code is a simple implementation which is a subset of full regular
expression functionality. See deny_file for details of exactly what
regex syntax is supported. Example: hide_file={*.mp3,.hidden,hide*,h?}
Default: (none)
- listen_address
- If vsftpd is in standalone mode, the default listen address
(of all local interfaces) may be overridden by this setting. Provide a
numeric IP address.
Default: (none)
- listen_address6
- Like listen_address, but specifies a default listen address
for the IPv6 listener (which is used if listen_ipv6 is set). Format is
standard IPv6 address format.
Default: (none)
- local_root
- This option represents a directory which vsftpd will try to
change into after a local (i.e. non-anonymous) login. Failure is silently
ignored.
Default: (none)
- message_file
- This option is the name of the file we look for when a new
directory is entered. The contents are displayed to the remote user. This
option is only relevant if the option dirmessage_enable is enabled.
Default: .message
- nopriv_user
- This is the name of the user that is used by vsftpd when it
wants to be totally unprivileged. Note that this should be a dedicated
user, rather than nobody. The user nobody tends to be used for rather a
lot of important things on most machines.
Default: nobody
- pam_service_name
- This string is the name of the PAM service vsftpd will use.
Default: vsftpd
- pasv_address
- Use this option to override the IP address that vsftpd will
advertise in response to the PASV command. Provide a numeric IP address,
unless pasv_addr_resolve is enabled, in which case you can provide
a hostname which will be DNS resolved for you at startup.
Default: (none - the address is taken from the incoming connected
socket)
- rsa_cert_file
- This option specifies the location of the RSA certificate
to use for SSL encrypted connections.
Default: /usr/share/ssl/certs/vsftpd.pem
- rsa_private_key_file
- This option specifies the location of the RSA private key
to use for SSL encrypted connections. If this option is not set, the
private key is expected to be in the same file as the certificate.
Default: (none)
- secure_chroot_dir
- This option should be the name of a directory which is
empty. Also, the directory should not be writable by the ftp user. This
directory is used as a secure chroot() jail at times vsftpd does not
require filesystem access.
Default: /var/run/vsftpd/empty
- ssl_ciphers
- This option can be used to select which SSL ciphers vsftpd
will allow for encrypted SSL connections. See the ciphers man page
for further details. Note that restricting ciphers can be a useful
security precaution as it prevents malicious remote parties forcing a
cipher which they have found problems with.
Default: DES-CBC3-SHA
- user_config_dir
- This powerful option allows the override of any config
option specified in the manual page, on a per-user basis. Usage is simple,
and is best illustrated with an example. If you set user_config_dir
to be /etc/vsftpd_user_conf and then log on as the user
"chris", then vsftpd will apply the settings in the file
/etc/vsftpd_user_conf/chris for the duration of the session. The
format of this file is as detailed in this manual page! PLEASE NOTE that
not all settings are effective on a per-user basis. For example, many
settings only prior to the user's session being started. Examples of
settings which will not affect any behviour on a per-user basis include
listen_address, banner_file, max_per_ip, max_clients, xferlog_file, etc.
Default: (none)
- user_sub_token
- This option is useful is conjunction with virtual users. It
is used to automatically generate a home directory for each virtual user,
based on a template. For example, if the home directory of the real user
specified via guest_username is /home/virtual/$USER, and
user_sub_token is set to $USER, then when virtual user fred
logs in, he will end up (usually chroot()'ed) in the directory
/home/virtual/fred. This option also takes affect if
local_root contains user_sub_token.
Default: (none)
- userlist_file
- This option is the name of the file loaded when the
userlist_enable option is active.
Default: /etc/vsftpd.user_list
- vsftpd_log_file
- This option is the name of the file to which we write the
vsftpd style log file. This log is only written if the option
xferlog_enable is set, and xferlog_std_format is NOT set.
Alternatively, it is written if you have set the option
dual_log_enable. One further complication - if you have set
syslog_enable, then this file is not written and output is sent to
the system log instead.
Default: /var/log/vsftpd.log
- xferlog_file
- This option is the name of the file to which we write the
wu-ftpd style transfer log. The transfer log is only written if the option
xferlog_enable is set, along with xferlog_std_format.
Alternatively, it is written if you have set the option
dual_log_enable.
Default: /var/log/xferlog
AUTHOR¶
scarybeasts@gmail.com