система
FreeBSD 7.1-RELEASE #1: Wed Apr 15 13:27:56 MSD 2009
root@my.local:/usr/obj/usr/src/sys/GENERIC-with-pf-altq-with-netgraph  i386

зашел в порт nginx /usr/ports/www/nginx

сказал make install , ругаетться на www юзвера.

вообще удалил старого, создал нового, вроде поставилось без проблем
естественно скопировались скрипты в /usr/local/etc/rc.d

из /usr/local/etc/rc.d/nginx start запускаеться

прописываем его в /etc/rc.conf

cat /etc/rc.conf

nginx_enable="YES"

cat /usr/local/etc/rc.d/nginx

#!/bin/sh
# $FreeBSD: ports/www/nginx/files/nginx.sh.in,v 1.7 2009/07/15 16:56:09 dougb Exp $
# PROVIDE: nginx
# REQUIRE: LOGIN cleanvar
# KEYWORD: shutdown
#
# Add the following lines to /etc/rc.conf to enable nginx:
# nginx_enable (bool):          Set to "NO" by default.
#                               Set it to "YES" to enable nginx
# nginx_profiles (str):         Set to "" by default.
#                               Define your profiles here.
# nginxlimits_enable (bool):    Set to "NO" by default.
#                               Set it to yes to run `limits $limits_args`
#                               just before nginx starts.
# nginx_flags (str):            Set to "" by default.
#                               Extra flags passed to start command.
# nginxlimits_args (str):       Default to "-e -U www"
#                               Arguments of pre-start limits run.
. /etc/rc.subr
name="nginx"
rcvar=`set_rcvar`
start_precmd="nginx_precmd"
restart_precmd="nginx_checkconfig"
reload_precmd="nginx_checkconfig"
configtest_cmd="nginx_checkconfig"
gracefulstop_cmd="nginx_gracefulstop"
upgrade_precmd="nginx_checkconfig"
upgrade_cmd="nginx_upgrade"
command="/usr/local/sbin/nginx"
_pidprefix="/var/run/nginx"
pidfile="${_pidprefix}.pid"
required_files=/usr/local/etc/nginx/nginx.conf
[ -z "$nginx_enable" ]          && nginx_enable="NO"
[ -z "$nginxlimits_enable" ]    && nginxlimits_enable="NO"
[ -z "$nginxlimits_args" ]      && nginxlimits_args="-e"
[ -z "$nginxlimits_args" ]      && nginxlimits_args="-e -U www"
load_rc_config $name
if [ -n "$2" ]; then
        profile="$2"
        if [ "x${nginx_profiles}" != "x" ]; then
                pidfile="${_pidprefix}.${profile}.pid"
                eval nginx_configfile="\${nginx_${profile}_configfile:-}"
                if [ "x${nginx_configfile}" = "x" ]; then
                        echo "You must define a configuration file (nginx_${profile}_configfile)"
                        exit 1
                fi
                required_files="${nginx_configfile}"
                eval nginx_enable="\${nginx_${profile}_enable:-${nginx_enable}}"
                eval nginx_flags="\${nginx_${profile}_flags:-${nginx_flags}}"
                eval nginxlimits_enable="\${nginxlimits_${profile}_enable:-${nginxlimits_enable}}"
                eval nginxlimits_args="\${nginxlimits_${profile}_args:-${nginxlimits_args}}"
                nginx_flags="-c ${nginx_configfile} -g \"pid ${pidfile};\" ${nginx_flags}"
        else
                echo "$0: extra argument ignored"
        fi
else
        if [ "x${nginx_profiles}" != "x" -a "x$1" != "x" ]; then
                for profile in ${nginx_profiles}; do
                        echo "===> nginx profile: ${profile}"
                        /usr/local/etc/rc.d/nginx $1 ${profile}
                        retcode="$?"
                        if [ "0${retcode}" -ne 0 ]; then
                                failed="${profile} (${retcode}) ${failed:-}"
                        else
                                success="${profile} ${success:-}"
                        fi
                done
                exit 0
        fi
fi
nginx_checkconfig()
{
        echo "Performing sanity check on nginx configuration:"
        eval ${command} ${nginx_flags} -t
}
nginx_gracefulstop()
{
        echo "Performing a graceful stop:"
        sig_stop="QUIT"
        run_rc_command ${rc_prefix}stop $rc_extra_args || return 1
}
nginx_upgrade()
{
        echo "Upgrading nginx binary:"
        reload_precmd=""
        sig_reload="USR2"
        run_rc_command ${rc_prefix}reload $rc_extra_args || return 1
        sleep 1
        echo "Stopping old binary:"
        sig_reload="QUIT"
        pidfile="$pidfile.oldbin"
        run_rc_command ${rc_prefix}reload $rc_extra_args || return 1
}
nginx_precmd()
{
        nginx_checkconfig
        if checkyesno nginxlimits_enable
        then
                eval `/usr/bin/limits ${nginxlimits_args}` 2>/dev/null
        else
                return 0
        fi
}
extra_commands="reload configtest upgrade gracefulstop"
run_rc_command "$1"

итак после перезапуска системы видим:

USER     COMMAND    PID   FD PROTO  LOCAL ADDRESS         FOREIGN ADDRESS
root     sshd       1027  2  tcp4   192.168.0.5:22        192.168.0.102:64462
root     sshd       1027  3  tcp4   192.168.0.5:22        192.168.0.102:64462
root     sshd       1027  4  tcp4   192.168.0.5:22        192.168.0.102:64462
root     inetd      990   5  tcp4   *:21                  *:*
root     inetd      990   6  tcp4   *:22                  *:*
root     sendmail   954   4  tcp4   127.0.0.1:25          *:*
www      nginx      939   7  tcp4   *:80                  *:*
root     nginx      937   7  tcp4   *:80                  *:*
pgsql    postgres   926   4  tcp4   *:5432                *:*
root     syslogd    796   7  udp4   *:514                 *:*

nginx запущен под двумя юзерами www и root
1. правильно ли это?
2. можно ли чтобы он был запущен только от www?
3. почему два процесса, и сколько вообще должно быть?