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       pure-ftpd - simple File Transfer Protocol server


       pure-ftpd  [-0] [-1] [-4] [-6] [-a gid] [-A] [-b] [-B] [-c clients] [-C
       cnx/ip] [-d [-d]] [-D] [-e] [-E] [-f facility] [-F fortunes  file]  [-g
       pidfile]   [-G]   [-H]   [-i]   [-I]  [-j]  [-k  percentage]  [-K]  [-l
       authentication[:config file]] [-L max  files:max  depth]  [-m  maxload]
       [-M]   [-n   maxfiles:maxsize]  [-N]  [-o]  [-O  format:log  file]  [-p
       first:last] [-P ip address or host name] [-q upload:download ratio] [-Q
       upload:download  ratio] [-r] [-R] [-s] [-S [address,][port]] [-t upload
       bandwidth:download bandwidth] [-T upload bandwidth:download  bandwidth]
       [-u  uid] [-U umask files:umask dirs] [-v bonjour name] [-V ip address]
       [-w] [-W] [-x] [-X] [-y max user sessions:max anon  sessions]  [-Y  tls
       behavior] [-z] [-Z]

       Alternative style :
       -0 --notruncate
       -1 --logpid
       -4 --ipv4only
       -6 --ipv6only
       -a --trustedgid
       -A --chrooteveryone
       -b --brokenclientscompatibility
       -B --daemonize
       -c --maxclientsnumber
       -C --maxclientsperip
       -d --verboselog
       -D --displaydotfiles
       -e --anonymousonly
       -E --noanonymous
       -f --syslogfacility
       -F --fortunesfile
       -g --pidfile
       -G --norename
       -h --help
       -H --dontresolve
       -i --anonymouscantupload
       -I --maxidletime
       -j --createhomedir
       -k --maxdiskusagepct
       -K --keepallfiles
       -l --login
       -L --limitrecursion
       -m --maxload
       -M --anonymouscancreatedirs
       -n --quota
       -N --natmode
       -o --uploadscript
       -O --altlog
       -p --passiveportrange
       -P --forcepassiveip
       -q --anonymousratio
       -Q --userratio
       -r --autorename
       -R --nochmod
       -s --antiwarez
       -S --bind
       -t --anonymousbandwidth
       -T --userbandwidth
       -u --minuid
       -U --umask
       -v --bonjour
       -V --trustedip
       -w --allowuserfxp
       -W --allowanonymousfxp
       -x --prohibitdotfileswrite
       -X --prohibitdotfilesread
       -y --peruserlimits
       -Y --tls
       -z --allowdotfiles
       -Z --customerproof


       Pure-FTPd is a small, simple server for the old and hairy File Transfer
       Protocol, designed to use less resources than older servers, be smaller
       and very secure, and to never execute any external program.

       It  support  most-used  features  and  commands  of FTP (including many
       modern extensions), and leaves  out  everything  which  is  deprecated,
       meaningless, insecure, or correlates with trouble.

       IPv6 is fully supported.


       -0     When  a file is uploaded and there is already a previous version
              of the file with the same name, the old file  will  neither  get
              removed  nor  truncated.   Upload will take place in a temporary
              file and once the upload is complete,  the  switch  to  the  new
              version  will be atomic. This option should not be used together
              with virtual quotas.

       -1     Add the PID to the syslog output. Ignored if -f none is set.

       -4     Listen only to IPv4 connections.

       -6     Listen only to IPv6 connections.

       -a gid Regular users will be chrooted to their home directories, unless
              they  belong  to  the  specified  gid.  Note that root is always
              trusted, and that chroot() occurs only for anonymous ftp without
              this option.

       -A     Chroot() everyone, but root.

       -b     Be broken. Turns on some compatibility hacks for shoddy clients,
              and for broken Netfilter gateways.

       -B     Start the standalone server in background (daemonize).

       -c clients
              Allow a maximum of clients to be connected.  clients must be  at
              least 1, and if you combine it with -p it will be forced down to
              half the number of ports specified by -p.  If more than  clients
              are  connected,  new  clients are rejected at once, even clients
              wishing to upload, or to log in as normal users.  Therefore,  it
              is  advisable  to  use  -m  as  primary overload protection. The
              default value is 50.

       -C max connection per ip
              Limit the number of simultanous connections coming from the same
              IP  address.  This  is yet another very effective way to prevent
              stupid denial of services and bandwidth starvation by  a  single
              user.   It  works only when the server is launched in standalone
              mode (if you use a super-server, it is supposed to do that).  If
              the  server  is  launched  with  -C 2 , it doesn’t mean that the
              total number of connection  is  limited  to  2.   But  the  same
              client,  coming from the same machine (or at least the same IP),
              can’t have more than two simultaneous connections. This features
              needs some memory to track IP addresses, but it’s recommended to
              use it.

       -d     turns on debug logging. Every command is logged, except that the
              argument  to PASS is changed to "<password>". If you repeat -d ,
              responses too are logged.

       -e     Only allow anonymous users to log in.

       -E     Only allow authenticated login. Anonymous users are  prohibited.

       -f facility
              makes  ftpd  use  facility for all syslog(3) messages.  facility
              defaults to ftp.  The facility  names  are  normally  listed  in
              /usr/include/sys/syslog.h.   Note  that  if  -f is not the first
              option on the command line, a couple of messages may  be  logged
              to  local2  before  the  -f  option  is  parsed.  Use -f none to
              disable logging.

       -F fortunes file
              Display a funny random message in the initial login banner.  The
              random  cookies  are extracted from a text file, in the standard
              fortune format. If you installed the fortune package, you should
              have a directory (usually /usr/share/fortune ) with binary files
              ( xxxx.dat ) and text files (without the .dat extension).

       -g pidfile
              In standalone mode, write the pid to that  file  in  instead  of
              /var/run/ .

       -G     When  this option is enabled, people can no more change the name
              of already uploaded files, even if they own those files or their

       -H     Don’t  resolve host names ("" will be logged instead
              of ""). It can significantly speed up connections
              and reduce bandwidth usage on busy servers. Use it especially on
              public FTP sites.

       -i     Disallow  upload  for  anonymous   users,   whatever   directory
              permissions  are.  This  option is especially useful for virtual
              hosting, to  avoid  your  users  create  warez  sites  in  their

       -I timeout
              Change  the  maximum  idle  time. The timeout is in minutes, and
              defaults to 15.

       -j     If the home directory of a  user  doesn’t  exist,  automatically
              create it. The newly created home directory belongs to the user,
              and permissions are set according to the current directory mask.
              To avoid local attacks, the parent directory should never belong
              to an untrusted user.

       -k percentage
              Disallow upload if the partition is more than  percentage  full.
              Example:  -k 95 will ensure that your disk will never get filled
              more than 95% by FTP users.

       -K     Allow users to resume and upload files, but NOT to delete  them.
              Directories can be removed, but only if they are empty.

       -l authentication:file
              Enable  a  new authentication method. It can be one of : -l unix
              For standard  (/etc/passwd)  authentication.   -l  pam  For  PAM
              authentication.   -l ldap:LDAP config file For LDAP directories.
              -l  mysql:MySQL   config   file   For   MySQL   databases.    -l
              pgsql:Postgres   config   file   For   Postgres  databases.   -l
              puredb:PureDB  database   file   For   PureDB   databases.    -l
              extauth:path  to  pure-authd  socket For external authentication
              Different authentication methods  can  be  mixed  together.  For
              instance   if   you  run  the  server  with  -lpuredb:/etc/pure-
              ftpd/pwd.pdb -lmysql:/etc/pure-ftpd/ -lunix  Accounts  will
              first  be  authenticated  from a PureDB database. If it fails, a
              MySQL server will be asked. If the account is still not found is
              the   database,   standard   unix   accounts  will  be  scanned.
              Authentication methods are tried in the order you  give  the  -l
              See  the  README.LDAP  and README.MySQL files for info about the
              built-in LDAP and SQL directory support.

       -L max files:max depth
              Avoid  denial-of-service  attacks  by  limiting  the  number  of
              displayed  files  in a ’ls’ and the maximum depth of a recursive
              ’ls’. Defaults are 2000:5 (2000 files  displayed  for  a  single
              ’ls’ and walk through 5 subdirectories max).

       -m load
              Do  not  allow  anonymous users to download files if the load is
              above load when the user connects. Uploads and file listings are
              still  allowed,  as are downloads by real users. The user is not
              told about this until he/she tries to download a file.

       -M     Allow anonymous users to create directories.

       -n maxfiles:maxsize
              Enable virtual quotas When virtual quotas are enabled, .ftpquota
              files  are  created,  and  the  number  of  files  for a user is
              restricted to ’maxfiles’. The max total size of his directory is
              also  restricted  to ’maxsize’ Megabytes. Members of the trusted
              group aren’t subject to quotas.

       -N     NAT mode. Force active mode. If your FTP server is behind a  NAT
              box that doesn’t support applicative FTP proxying, or if you use
              port redirection without a  transparent  FTP  proxy,  use  this.
              Well...  the  previous  sentence isn’t very clear. Okay: if your
              network looks like this:
              and if you want people coming from the internet to  have  access
              to  your  FTP  server,  please try without this option first. If
              Netscape clients can  connect  without  any  problem,  your  NAT
              gateway  rulez.  If Netscape doesn’t display directory listings,
              your NAT gateway sucks. Use -N as a workaround.

       -o     Enable pure-uploadscript.

       -O format:log file
              Record all file transfers  into  a  specific  log  file,  in  an
              alternative  format.  Currently,  three  formats are supported :
              CLF, Stats, W3C and xferlog.
              If you add
              -O clf:/var/log/pureftpd.log
              to your  starting  options,  Pure-FTPd  will  log  transfers  in
              /var/log/pureftpd.log  in  a  format  similar  to the Apache web
              server in default configuration.
              If you add
              -O stats:/var/log/pureftpd.log
              to your starting options, Pure-FTPd  will  create  accurate  log
              files designed for traffic analys software like ftpStats.
              If you add
              -O w3c:/var/log/pureftpd.log
              to  your  starting options, Pure-FTPd will create W3C-conformant
              log files.
              For  security  purposes,  the  path  must   be   absolute   (eg.
              /var/log/pureftpd.log, not  ../log/pureftpd.log).

       -p first:last
              Use  only  ports  in  the  range  first  to  last  inclusive for
              passive-mode downloads. This means that clients will not try  to
              open  connections  to  TCP ports outside the range first - last,
              which makes pure-ftpd more compatible with packet filters.  Note
              that the maximum number of clients (specified with -c) is forced
              down to (last + 1 - first)/2 if it is greater,  as  the  default
              is. (The syntax for the port range is, conveniently, the same as
              that of iptables).

       -P ip address or host name
              Force the specified IP address  in  reply  to  a  PASV/EPSV/SPSV
              command.  If  the server is behind a masquerading (NAT) box that
              doesn’t properly handle stateful FTP masquerading,  put  the  ip
              address  of that box here. If you have a dynamic IP address, you
              can use a symbolic host name (probably the one of your gateway),
              that will be resolved every time a new client will connect.

       -q upload:download
              Enable  an upload/download ratio for anonymous users (ex: -q 1:5
              means that 1 Mb of goodies have to be uploaded to leech 5 Mb).

       -Q upload:download
              Enable ratios for anonymous and non-anonymous users. If  the  -a
              option is also used, users from the trusted group have no ratio.

       -r     Never overwrite existing files. Uploading  a  file  whoose  name
              already  exists  cause  an  automatic  rename.  Files are called
              xyz.1, xyz.2, xyz.3, etc.

       -R     Disallow users (even non-anonymous  ones)  usage  of  the  CHMOD
              command.  On hosting services, it may prevent newbies from doing
              mistakes, like setting bad permissions on their home  directory.
              Only root can use CHMOD when this switch is enabled.

       -s     Don’t  allow  anonymous  users  to retrieve files owned by "ftp"
              (generally, files uploaded by other anonymous users).

       -S [{ip address|hostname}] [,{port|service name}]
              This option is only effective when the server is launched  as  a
              standalone server.  Connections are accepted on the specified IP
              and  port.  IPv4   and   IPv6   are   supported.   Numeric   and
              fully-qualified  host  names  are  accepted. A service name (see
              /etc/services) can be used instead of a numeric port number.

       -t bandwidth
              or  -t  upload  bandwidth:download  bandwidth   Enable   process
              priority  lowering and bandwidth throttling for anonymous users.
              Delay should be in kilobytes/seconds.

       -T bandwidth
              or  -T  upload  bandwidth:download  bandwidth   Enable   process
              priority  lowering  and  bandwidth  throttling  for *ALL* users.
              Pure-FTPd should have been explicitely compiled with  throttling
              support  to  have  these  flags  work.   It  is possible to have
              different bandwidth limits for uploads and for  downloads.  ’-t’
              and  ’-T’  can  indeed be followed by two numbers delimited by a
              column (’:’). The first number is the upload bandwidth  and  the
              next  one  applies  only  to  downloads. One of them can be left
              blank which means infinity.  A single number without any  column
              means that the same limit applies to upload and download.

       -u uid Do  not  allow uids below uid to log in (typically, low-numbered
              uids  are  used  for  administrative  accounts).   -u   100   is
              sufficient to deny access to all administrative accounts on many
              linux boxes,  where  99  is  the  last  administrative  account.
              Anonymous  FTP  is  allowed  even  if the uid of the ftp user is
              smaller than uid.  -u 1 denies access only to root accounts. The
              default is to allow FTP access to all accounts.

       -U umask files:umask dirs
              Change  the  mask for creation of new files and directories. The
              default are 133 (files are readable -but not writable- by  other
              users)  and  022 (same thing for directory, with the execute bit
              on).  If new files should only be  readable  by  the  user,  use
              177:077.  If  you  want  uploaded  files  to  be executable, use
              022:022 (files will be readable  by  other  people)  or  077:077
              (files will only be readable by their owner).

       -v bonjour name
              Set  the  Bonjour name of the service (only available on MacOS X
              when Bonjour support is compiled in).

       -V ip address
              Allow non-anonymous FTP access only on this  specific  local  IP
              address.  All  other  IP addresses are only anonymous. With that
              option, you can have routed IPs for public access, and  a  local
              IP  (like  10.x.x.x)  for  administration.  You  can also have a
              routable trusted IP protected by firewall rules, and  only  that
              IP can be used to login as a non-anonymous user.

       -w     Enable  support  for  the  FXP protocol, for non-anonymous users

       -W     Enable the FXP  protocol  for  everyone.   FXP  IS  AN  UNSECURE

       -x     In  normal  operation  mode,  authenticated users can read/write
              files beginning with a dot (’.’).  Anonymous  users  can’t,  for
              security reasons (like changing banners or a forgotten .rhosts).
              When ’-x’ is used, authenticated users can  download  dot-files,
              but  not overwrite/create them, even if they own them. That way,
              you can prevent hosted users from messing

       -X     This flag is identical to the previous one (writing dot-files is
              prohibited),  but in addition, users can’t even *read* files and
              directories beginning with a dot (like "cd .ssh").

       -y per user max sessions:max anonymous sessions
              This switch enables per-user concurrency limits. Two values  are
              separated  by  a  column.  The  first  one  is the max number of
              concurrent sessions for a single login. The second  one  is  the
              maximum number of anonoymous sessions.

       -Y tls behavior
              -Y 0 (default) disables SSL/TLS security mechanisms.
              -Y 1 Accept both normal sessions and SSL/TLS ones.
              -Y  2  refuses  connections  that  aren’t using SSL/TLS security
              mechanisms, including anonymous ones.
              -Y 3 refuses connections  that  aren’t  using  SSL/TLS  security
              mechanisms, and refuse cleartext data channels as well.
              The  server  must  have been compiled with SSL/TLS support and a
              valid certificate must be in place to accept encrypted sessions.

       -z     Allow  anonymous  users  to  read files and directories starting
              with a dot (’.’).

       -Z     Add safe guards against common customer mistakes (like  chmod  0
              on their own files) .


       Some of the complexities of older servers are left out.

       This  version of pure-ftpd can use PAM for authentication. If you wan’t
       it to consult any files like /etc/shells or /etc/ftpd/ftpusers  consult
       pam docs. LDAP directories and SQL databases are also supported.

       Anonymous users are authenticated in any of three ways:

       1.  The  user  logs  in as "ftp" or "anonymous" and there is an account
       called "ftp" with an existing home directory. This server does not  ask
       anonymous users for an email address or other password.

       2.  The  user connects to an IP address which resolves to the name of a
       directory in /etc/pure-ftpd/pure-ftpd (or a symlink in  that  directory
       to  a real directory), and there is an account called "ftp" (which does
       not need to have a valid home directory). See Virtual Servers below.

       Ftpd does a chroot(2) to the relevant base directory when an  anonymous
       user logs in.

       Note that ftpd allows remote users to log in as root if the password is
       known and -u not used.


       If a user’s home directory is /path/to/home/./, FTP sessions under that
       UID  will  be  chroot()ed.  In addition, if a users’s home directory is
       /path/to/home/./directory   the   session   will   be   chroot()ed   to
       /path/to/home and the FTP session will start in ’directory’.

       As noted above, this pure-ftpd omits several features that are required
       by the RFC or might be considered useful at first. Here is  a  list  of
       the most important omissions.

       On-the-fly tar is not supported, for several reasons. I feel that users
       who want to get many files should use a  special  FTP  client  such  as
       "mirror," which also supports incremental fetch. I don’t want to either
       add several hundred lines of code to create tar  files  or  execute  an
       external tar. Finally, on-the-fly tar distorts log files.

       On-the-fly  compression  is left out too. Most files on an FTP site are
       compressed already, and if a file isn’t, there presumably is  a  reason
       why.  (As  for  decompression:  Don’t  FTP users waste bandwidth enough
       without help from on-the-fly decompression?)


       Shortcuts for the "cd" command can be set up if  the  server  has  been
       compiled with the --with-diraliases feature.

       To   enable   directory   aliases,  create  a  file  called  /etc/pure-
       ftpd/pureftpd-dir-aliases  and  alternate  lines  of  alias  names  and
       associated directories.


       This server leaves out some of the commands and features that have been
       used to subvert anonymous FTP servers in the past, but still  you  have
       to  be  a  little bit careful in order to support anonymous FTP without
       risk to the rest of your files.

       Make ~ftp and all files and directories below this directory  owned  by
       some    user    other   than   "ftp,"   and   only   the   .../incoming
       directory/directories writable by "ftp." It is  probably  best  if  all
       directories are writable only by a special group such as "ftpadmin" and
       "ftp" is not a member of this group.

       If you do not trust the local users, put ~ftp on a separate  partition,
       so  local users can’t hard-link unapproved files into the anonymous FTP

       Use of the -s option is strongly suggested. (Simply add "-s" to the end
       of the ftpd line in /etc/inetd.conf to enable it.)

       Most  other  FTP  servers  require  that  a  number  of  files  such as
       ~ftp/bin/ls exist. This server does  not  require  that  any  files  or
       directories  within  ~/ftp  whatsoever  exist, and I recommend that all
       such unnecessary files are removed (for no real reason).

       It may be worth considering to run  the  anonymous  FTP  service  as  a
       virtual  server,  to  get  automatic logins and to firewall off the FTP
       address/port to which real users can log in.

       If your server is a public FTP site, you may want to allow  only  ’ftp’
       and  ’anonymous’  users  to  log  in.  Use the -e option for this. Real
       accounts will be ignored and you will get a secure, anonymous-only  FTP


       The files <ftproot>/.banner and .message are magical.

       If  there  is  a  file  called  .banner  in  the  root directory of the
       anonymous FTP area, or in the root directory of a virtual host, and  it
       is  shorter  than  1024 bytes, it is printed upon login. (If the client
       does not log in explicitly, and an implicit login is triggered by a CWD
       or  CDUP  command,  the  banner is not printed. This is regrettable but
       hard to avoid.)

       If there is a file called .message in any directory and it  is  shorter
       than  1024  bytes,  that  file  is  printed whenever a user enters that
       directory using CWD or CDUP.


       You can run several different anonymous FTP servers  on  one  host,  by
       giving the host several IP addresses with different DNS names.

       Here  are  the steps needed to create an extra server using an IP alias
       on linux 2.4.x, called "" on address on the
       IP alias eth0.

       1.  Create  an  "ftp" account if you do not have one. It it best if the
       account does not have a valid home directory and  shell.  I  prefer  to
       make  /dev/null  the ftp account’s home directory and shell.  Ftpd uses
       this account to set the anonymous users’ uid.

       2. Create a directory as described in Anonymous FTP and make a  symlink
       called   /etc/pure-ftpd/pure-ftpd/   which  points  to  this

       3. Make sure your kernel has support for IP aliases.

       4. Make sure that the following commands are run at boot:

         /sbin/ifconfig eth0:1

       That should be all. If you have problems, here are some things to  try.

       First, symlink /etc/pure-ftpd/pure-ftpd/ to some directory and
       say "ftp localhost". If that doesn’t log you in, the  problem  is  with

       If not, "ping -v" and/or "ping -v" from the
       same host. If this does not work, the problem is with the IP alias.

       Next, try "ping -v" from a host on the local ethernet,  and
       afterwards  "/sbin/arp  -a".  If  is  listed among the ARP
       entries with the correct hardware address, the problem is probably with
       the  IP  alias.  If  is  listed,  but has hardware address
       0:0:0:0:0:0, then proxy-ARP isn’t working.

       If none of that helps, I’m stumped. Good luck.

       Warning: If you setup a virtual hosts, normal users will not be able to
       login  via  this  name,  so  dont  create link/directory in /etc/pure-
       ftpd/pure-ftpd for your regular hostname.


       /etc/passwd is used via libc (and PAM is this case), to get the uid and
       home directory of normal users, the uid and home directory of "ftp" for
       normal anonymous ftp, and just the uid of "ftp" for virtual ftp  hosts.

       /etc/shadow is used like /etc/passwd if shadow support is enabled.

       /etc/group  is  used  via  libc,  to get the group membership of normal

       /proc/net/tcp is used to count existing FTP connections, if the  -c  or
       -p options are used

       /etc/pure-ftpd/pure-ftpd/<ip address> is the base directory for the <ip
       address> virtual ftp server, or a symbolic link to its base  directory.
       Ftpd  does  a  chroot(2) into this directory when a user logs in to <ip
       address>, thus symlinks outside this directory will not work.

       ~ftp is the base directory for "normal" anonymous  FTP.   Ftpd  does  a
       chroot(2)  into  this  directory  when  an anonymous user logs in, thus
       symlinks outside this directory will not work.


       The behaviour of LIST and NLST is a  tricky  issue.  Few  servers  send
       RFC-compliant   responses   to   LIST,   and  some  clients  depend  on
       non-compliant responses.

       This server uses glob(3) to do filename globbing.

       The response to NLST is by default similar to that of ls(1),  and  that
       to  LIST  is by default similar to that of ls -l or ls -lg on most Unix
       systems, except that the "total" count is  meaningless.   Only  regular
       files,  directories  and  symlinks are shown. Only important ls options
       are supported:

       -1     Undoes -l and -C.

       -a     lists even files/directories whose names begin with ".".

       -C     lists files in as many colums as will fit on the screen.  Undoes
              -1 and -l.

       -d     lists argument directories’ names rather their contents.

       -D     List  files  beginning  with  a  dot  (’.’) even when the client
              doesn’t append the -a option to the list command.

       -F     appends ’*’ to executable regular files, ’@’ to symlinks and ’/’
              to directories.

       -l     shows  various details about the file, including file group. See
              ls(1) for details. Undoes -1 and -C.

       -r     reverses the sorting order (modifies -S and -t and  the  default
              alphabetical ordering).

       -R     recursively   descends   into  subdirectories  of  the  argument

       -S     Sorts by file size instead of by name. Undoes -t.

       -t     Sorts by file modification time instead of by name. Undoes -S.


       Here are the FTP commands supported by this server.


       Please report bugs to the mailing-list (see  below).   Pure-FTPd  looks
       very stable and is used on production servers. However it comes with no
       warranty and it can have nasty bugs or security flaws.



       See the mailing-list on


       Troll-FTPd was  written  by  Arnt  Gulbrandsen  <>  and
       copyright  1995-2002  Troll  Tech AS, Waldemar Thranes gate 98B, N-0175
       Oslo, Norway, fax +47 22806380.

       Pure-FTPd is (C)opyleft 2001-2010 by Frank DENIS  <j  at  pureftpd  dot
       org> and the Pure-FTPd team.

       This software is covered by the BSD license.

        Arnt Gulbrandsen,
        Troll Tech AS,
        Janos Farkas,
        August Fullford,
        Ximenes Zalteca,
        Patrick Michael Kane,
        Arkadiusz Miskiewicz,
        Michael K. Johnson,
        Kelley Lingerfelt,
        Sebastian Andersson,
        Andreas Westin,
        Jason Lunz,
        Mathias Gumz,
        Claudiu Costin,
        Paul Lasarev,
        Jean-Mathieux Schaffhauser,
        Emmanuel Hocdet,
        Sami Koskinen,
        Sami Farin,
        Luis Llorente Campo,
        Peter Pentchev,
        Darren Casey,
        The Regents of the University of California,
        Theo de Raadt (OpenBSD),
        Matthias Andree,
        Isak Lyberth,
        Steve Reid,
        RSA Data Security Inc,
        Dmtry Lebkov,
        Johan Huisman,
        Thorsten Kukuk,
        Jan van Veen,
        Roger Constantin Demetrescu,
        Stefano F.,
        Robert Varga,
        James Metcalf,
        Im Eunjea,
        Philip Gladstone,
        Kenneth Stailey,
        Brad Smith,
        Ulrik Sartipy,
        Cindy Marasco,
        Nicolas Doye,
        Thomas Briggs,
        Stanton Gallegos,
        Florin Andrei,
        Chan Wilson,
        Bjoern Metzdorf,
        Ben Gertzfield,
        Akhilesch Mritunjai,
        Dawid Szymanski,
        Kurt Inge Smadal,
        Alex Dupre,
        Gabriele Vinci,
        Andrey Ulanov,
        Fygul Hether,
        Jeffrey Lim,
        Ying-Chieh Liao,
        Johannes Erdfelt,
        Martin Sarfy,
        Clive Goodhead,
        Aristoteles Pagaltzis,
        Stefan Hornburg,
        Mehmet Cokcevik,
        Brynjar Eide,
        Torgnt Wernersson,
        Banhalmi Csaba,
        Volodin D,
        Oriol Magrané,
        Jui-Nan Lin,
        Patrick Gosling,
        Marc Balmer,
        Rajat Upadhyaya / Novell,
        Christian Cier-Zniewski,
        Wilco Baan Hofman.


       ftp(1),     pure-ftpd(8)    pure-ftpwho(8)    pure-mrtginfo(8)    pure-
       uploadscript(8) pure-statsdecode(8) pure-pw(8) pure-quotacheck(8) pure-

       RFC 959, RFC 2228, RFC 2389 and RFC 2428.