-h,--help Display a short usage description, including all available options.
-n,--nodaemon
Runs the proftpd process in standalone mode (must be configured as such in the configuration
file), but does not background the process or disassociate it from the controlling tty.
Additionally, all output (log or debug messages) are sent to stderr, rather than the syslog
mechanism. Most often used with the -doption for debugging.
-q,--quiet Quiet mode; don't send logging information to standard error when running with the -noption.
Logs are directed to the configured log output (syslog or logfile) instead.
-v,--version
Displays the version number of ProFTPD to stdout.
-D,--defineparameter
Sets a configuration parameter which can be used <IfDefine>...</IfDefine> sections in the
configuration files to conditionally skip or process commands.
-d,--debugdebuglevel
Sets proftpd's internal debug level (normally 0). The debuglevel should be an integer value
from 0 to 10, with higher numbers producing more debug output. Normally, debug messages are
sent to syslog using the DEBUG facility, however if the -noption is used, all such output is
sent to stderr.
-c,--configconfig-file
Specifies an alternate config-file to be parsed at startup, rather than the default
configuration file. The default configuration file is /etc/proftpd/proftpd.conf-N,--nocollision
Disables address/port collision checking.
-S,--serveraddr
Specifies an IP address for the host machine, avoiding an DNS lookup of the hostname
-t,--configtest
Read the configuration file, report any syntax errors, and exit.
-p,--persistent0|1
Disables (0) or enables (1) the default persistent password support, which is determined at
configure time for each platform. This option only affects the default support, it can still
be overridden at run-time with the PersistentPasswd directive.
-l,--list Lists all modules compiled into proftpd.
-V,--settings
Displays various compile-time settings and exits.
-X,--nofork Debug mode (do not fork a session process); exits after one session.
-4,--ipv4 Support IPv4 functionality only, regardless of whether the --enable-ipv6 configure option was
used.
-6,--ipv6 Support IPv6 connections and lookup of IPv6 addresses for server DNS names. This is enabled
by default, if the --enable-ipv6 configure option is used.