Hello everyone,
I ran into a problem using the ftp service in combination with a dynamic DNS service and masquerading.
The dynamic DNS wouldn't resolve yet during boot when proftpd was started, so it failed.
To resolve this issue I added a wait-loop if masquerading is activated with a domain name.
maybe this is useful for someone else, so find my modified script below:
Bash
#!/bin/bash
### BEGIN INIT INFO
# Provides: proftpd
# Required-Start: $remote_fs $syslog $local_fs $network
# Required-Stop: $remote_fs $syslog $local_fs $network
# Should-Start: $named
# Should-Stop: $named
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Starts ProFTPD daemon
# Description: This script runs the FTP service offered
# by the ProFTPD daemon
### END INIT INFO
# Start the proftpd FTP daemon.
PATH=/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/usr/sbin/proftpd
NAME=proftpd
# Defaults
RUN="no"
OPTIONS=""
CONFIG_FILE=/etc/proftpd/proftpd.conf
PIDFILE=`grep -i 'pidfile' $CONFIG_FILE|sed -e 's/pidfile[\t ]\+//i'`
MASQU=`grep -i 'MasqueradeAddress' $CONFIG_FILE|sed -e 's/MasqueradeAddress[\t ]\+//i'`
VALIDIPV4='^((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])$'
VALIDIPV6='^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]).){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]).){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$'
if [ "x$PIDFILE" = "x" ];
then
PIDFILE=/var/run/proftpd.pid
fi
# Read config (will override defaults)
[ -r /etc/default/proftpd ] && . /etc/default/proftpd
trap "" 1
trap "" 15
test -f $DAEMON || exit 0
. /lib/lsb/init-functions
#
# Servertype could be inetd|standalone|none.
# In all cases check against inetd and xinetd support.
#
if ! egrep -qi "^[[:space:]]*ServerType.*standalone" $CONFIG_FILE
then
if egrep -qi "server[[:space:]]*=[[:space:]]*/usr/sbin/proftpd" /etc/xinetd.conf 2>/dev/null || \
egrep -qi "server[[:space:]]*=[[:space:]]*/usr/sbin/proftpd" /etc/xinetd.d/* 2>/dev/null || \
egrep -qi "^ftp.*/usr/sbin/proftpd" /etc/inetd.conf 2>/dev/null
then
RUN="no"
INETD="yes"
else
if ! egrep -qi "^[[:space:]]*ServerType.*inetd" $CONFIG_FILE
then
RUN="yes"
INETD="no"
else
RUN="no"
INETD="no"
fi
fi
fi
# /var/run could be on a tmpfs
[ ! -d /var/run/proftpd ] && mkdir /var/run/proftpd
inetd_check()
{
if [ ! -x /usr/sbin/inetd -a ! -x /usr/sbin/xinetd ]; then
echo "Neither inetd nor xinetd appears installed: check your configuration."
fi
}
start()
{
log_daemon_msg "Starting ftp server" "$NAME"
if [ "$MASQU" != "" ]; then
if ! ([[ $MASQU =~ $VALIDIPV4 ]] || [[ $MASQU =~ $VALIDIPV6 ]]); then
while ! host $MASQU > NUL; do
log_progress_msg "waiting for DNS to resolve " "$MASQU"
sleep 10
done
fi
fi
start-stop-daemon --start --quiet --pidfile "$PIDFILE" --oknodo --exec $DAEMON -- -c $CONFIG_FILE $OPTIONS
if [ $? != 0 ]; then
log_end_msg 1
exit 1
else
log_end_msg 0
fi
}
signal()
{
if [ "$1" = "stop" ]; then
SIGNAL="TERM"
log_daemon_msg "Stopping ftp server" "$NAME"
else
if [ "$1" = "reload" ]; then
SIGNAL="HUP"
log_daemon_msg "Reloading ftp server" "$NAME"
else
echo "ERR: wrong parameter given to signal()"
exit 1
fi
fi
if [ -f "$PIDFILE" ]; then
start-stop-daemon --stop --signal $SIGNAL --quiet --pidfile "$PIDFILE"
if [ $? = 0 ]; then
log_end_msg 0
else
SIGNAL="KILL"
start-stop-daemon --stop --signal $SIGNAL --quiet --pidfile "$PIDFILE"
if [ $? != 0 ]; then
log_end_msg 1
[ $2 != 0 ] || exit 0
else
log_end_msg 0
fi
fi
if [ "$SIGNAL" = "KILL" ]; then
rm -f "$PIDFILE"
fi
else
log_end_msg 0
fi
}
case "$1" in
start)
if [ "x$RUN" = "xyes" ] ; then
start
else
if [ "x$INETD" = "xyes" ] ; then
echo "ProFTPD is started from inetd/xinetd."
inetd_check
else
echo "ProFTPD warning: cannot start neither in standalone nor in inetd/xinetd mode. Check your configuration."
fi
fi
;;
force-start)
if [ "x$INETD" = "xyes" ] ; then
echo "Warning: ProFTPD is started from inetd/xinetd (trying to start anyway)."
inetd_check
fi
start
;;
stop)
if [ "x$RUN" = "xyes" ] ; then
signal stop 0
else
if [ "x$INETD" = "xyes" ] ; then
echo "ProFTPD is started from inetd/xinetd."
inetd_check
else
echo "ProFTPD warning: cannot start neither in standalone nor in inetd/xinetd mode. Check your configuration."
fi
fi
;;
force-stop)
if [ "x$INETD" = "xyes" ] ; then
echo "Warning: ProFTPD is started from inetd/xinetd (trying to kill anyway)."
inetd_check
fi
signal stop 0
;;
reload)
signal reload 0
;;
force-reload|restart)
if [ "x$RUN" = "xyes" ] ; then
signal stop 1
sleep 2
start
else
if [ "x$INETD" = "xyes" ] ; then
echo "ProFTPD is started from inetd/xinetd."
inetd_check
else
echo "ProFTPD warning: cannot start neither in standalone nor in inetd/xinetd mode. Check your configuration."
fi
fi
;;
status)
if [ "x$INETD" = "xyes" ] ; then
echo "ProFTPD is started from inetd/xinetd."
inetd_check
exit 0
else
if [ -f "$PIDFILE" ]; then
pid=$(cat $PIDFILE)
else
pid="x"
fi
if [ `pidof proftpd|grep "$pid"|wc -l` -ne 0 ] ; then
echo "ProFTPD is started in standalone mode, currently running."
exit 0
else
echo "ProFTPD is started in standalone mode, currently not running."
exit 3
fi
fi
;;
check-config)
$DAEMON -t >/dev/null && echo "ProFTPD configuration OK" && exit 0
exit 1
;;
*)
echo "Usage: /etc/init.d/$NAME {start|status|force-start|stop|force-stop|reload|restart|force-reload|check-config}"
exit 1
;;
esac
exit 0