-.IR services (5).
-.PP
-If the
-.B \-d
-option is specified,
-each socket created will have debugging turned
-on (SO_DEBUG). With debugging enabled, the system
-will trace all TCP packets sent and received on a
-socket. The program
-.IR trpt (8C)
-may then be used to interpret the packet traces.
-.PP
-If the
-.B \-l
-option is specified,
-each ftp session is logged on the standard output.
-This allows a line of the form
-`/etc/ftpd -l > /tmp/ftplog''
-to be used to conveniently maintain a log of ftp sessions.
-.PP
-The ftp server
-will timeout an inactive session after 60 seconds.
-If the
-.B \-t
-option is specified,
-the inactivity timeout period will be set to
-.IR timeout .
-.PP
-The ftp server currently supports the following ftp
-requests; case is not distinguished.
-.PP
-.nf
-.ta \w'Request 'u
-\fBRequest Description\fP
-ACCT specify account (ignored)
-ALLO allocate storage (vacuously)
-APPE append to a file
-CWD change working directory
-DELE delete a file
-HELP give help information
-LIST give list files in a directory (``ls -lg'')
-MODE specify data transfer \fImode\fP
-NLST give name list of files in directory (``ls'')
-NOOP do nothing
-PASS specify password
-PORT specify data connection port
-QUIT terminate session
-RETR retrieve a file
-RNFR specify rename-from file name
-RNTO specify rename-to file name
-STOR store a file
-STRU specify data transfer \fIstructure\fP
-TYPE specify data transfer \fItype\fP
-USER specify user name
-XCUP change to parent of current working directory
-XCWD change working directory
-XMKD make a directory
-XPWD print the current working directory
-XRMD remove a directory
-.fi
-.PP
-The remaining ftp requests specified in Internet RFC 765 are
+.Xr services 5 .
+.Pp
+Available options:
+.Bl -tag -width Ds
+.It Fl d
+Debugging information is written to the syslog using LOG_FTP.
+.It Fl l
+Each successful and failed
+.Xr ftp 1
+session is logged using syslog with a facility of LOG_FTP.
+If this option is specified twice, the retrieve (get), store (put), append,
+delete, make directory, remove directory and rename operations and
+their filename arguments are also logged.
+.It Fl T
+A client may also request a different timeout period;
+the maximum period allowed may be set to
+.Ar timeout
+seconds with the
+.Fl T
+option.
+The default limit is 2 hours.
+.It Fl t
+The inactivity timeout period is set to
+.Ar timeout
+seconds (the default is 15 minutes).
+.El
+.Pp
+The file
+.Pa /etc/nologin
+can be used to disable ftp access.
+If the file exists,
+.Nm
+displays it and exits.
+If the file
+.Pa /etc/ftpwelcome
+exists,
+.Nm
+prints it before issuing the
+.Dq ready
+message.
+If the file
+.Pa /etc/motd
+exists,
+.Nm
+prints it after a successful login.
+.Pp
+The ftp server currently supports the following ftp requests.
+The case of the requests is ignored.
+.Bl -column "Request" -offset indent
+.It Request Ta "Description"
+.It ABOR Ta "abort previous command"
+.It ACCT Ta "specify account (ignored)"
+.It ALLO Ta "allocate storage (vacuously)"
+.It APPE Ta "append to a file"
+.It CDUP Ta "change to parent of current working directory"
+.It CWD Ta "change working directory"
+.It DELE Ta "delete a file"
+.It HELP Ta "give help information"
+.It LIST Ta "give list files in a directory" Pq Dq Li "ls -lgA"
+.It MKD Ta "make a directory"
+.It MDTM Ta "show last modification time of file"
+.It MODE Ta "specify data transfer" Em mode
+.It NLST Ta "give name list of files in directory"
+.It NOOP Ta "do nothing"
+.It PASS Ta "specify password"
+.It PASV Ta "prepare for server-to-server transfer"
+.It PORT Ta "specify data connection port"
+.It PWD Ta "print the current working directory"
+.It QUIT Ta "terminate session"
+.It REST Ta "restart incomplete transfer"
+.It RETR Ta "retrieve a file"
+.It RMD Ta "remove a directory"
+.It RNFR Ta "specify rename-from file name"
+.It RNTO Ta "specify rename-to file name"
+.It SITE Ta "non-standard commands (see next section)"
+.It SIZE Ta "return size of file"
+.It STAT Ta "return status of server"
+.It STOR Ta "store a file"
+.It STOU Ta "store a file with a unique name"
+.It STRU Ta "specify data transfer" Em structure
+.It SYST Ta "show operating system type of server system"
+.It TYPE Ta "specify data transfer" Em type
+.It USER Ta "specify user name"
+.It XCUP Ta "change to parent of current working directory (deprecated)"
+.It XCWD Ta "change working directory (deprecated)"
+.It XMKD Ta "make a directory (deprecated)"
+.It XPWD Ta "print the current working directory (deprecated)"
+.It XRMD Ta "remove a directory (deprecated)"
+.El
+.Pp
+The following non-standard or
+.Tn UNIX
+specific commands are supported
+by the
+SITE request.
+.Pp
+.Bl -column Request -offset indent
+.It Sy Request Ta Sy Description
+.It UMASK Ta change umask, e.g. ``SITE UMASK 002''
+.It IDLE Ta set idle-timer, e.g. ``SITE IDLE 60''
+.It CHMOD Ta change mode of a file, e.g. ``SITE CHMOD 755 filename''
+.It HELP Ta give help information.
+.El
+.Pp
+The remaining ftp requests specified in Internet RFC 959
+are
projects / unix-history / blobdiff