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chenbo 01-19-2012 10:46 PM

CentOS 6.2 service slapd start does not work
 
Hi,

In my new CentoOS 6.2 setup and configuration, the pre-installed openldap does not start when I enter

Code:

service slapd start
in the command line. The follow is the original script in /etc/init.d/slapd

Code:

#!/bin/bash
#
# slapd  This shell script takes care of starting and stopping
#        ldap servers (slapd).
#
# chkconfig: - 27 73
# description: LDAP stands for Lightweight Directory Access Protocol, used \
#              for implementing the industry standard directory services.
# processname: slapd
# config: /etc/openldap/slapd.conf
# pidfile: /var/run/slapd.pid

### BEGIN INIT INFO
# Provides: slapd
# Required-Start: $network $local_fs
# Required-Stop: $network $local_fs
# Should-Start:
# Should-Stop:
# Default-Start:
# Default-Stop:
# Short-Description: starts and stopd OpenLDAP server daemon
# Description: LDAP stands for Lightweight Directory Access Protocol, used
#              for implementing the industry standard directory services.
### END INIT INFO

# Source function library.
. /etc/init.d/functions

# Define default values of options allowed in /etc/sysconfig/ldap
SLAPD_LDAP="yes"
SLAPD_LDAPI="no"
SLAPD_LDAPS="no"
SLAPD_URLS=""
SLAPD_SHUTDOWN_TIMEOUT=3
# OPTIONS, SLAPD_OPTIONS and KTB5_KTNAME are not defined

# Source an auxiliary options file if we have one
if [ -r /etc/sysconfig/ldap ] ; then
        . /etc/sysconfig/ldap
fi

slapd=/usr/sbin/slapd
slaptest=/usr/sbin/slaptest
lockfile=/var/lock/subsys/slapd
configdir=/etc/openldap/slapd.d/
configfile=/etc/openldap/slapd.conf
pidfile=/var/run/slapd.pid
slapd_pidfile=/var/run/openldap/slapd.pid

RETVAL=0

#
# Pass commands given in $2 and later to "test" run as user given in $1.
#
function testasuser() {
        local user= cmd=
        user="$1"
        shift
        cmd="$@"
        if test x"$user" != x ; then
                if test x"$cmd" != x ; then
                        /sbin/runuser -f -m -s /bin/sh -c "test $cmd" -- "$user"
                else
                        false
                fi
        else
                false
        fi
}

#
# Check for read-access errors for the user given in $1 for a service named $2.
# If $3 is specified, the command is run if "klist" can't be found.
#
function checkkeytab() {
        local user= service= klist= default=
        user="$1"
        service="$2"
        default="${3:-false}"
        if test -x /usr/kerberos/bin/klist ; then
                klist=/usr/kerberos/bin/klist
        elif test -x /usr/bin/klist ; then
                klist=/usr/bin/klist
        fi
        KRB5_KTNAME="${KRB5_KTNAME:-/etc/krb5.keytab}"
        export KRB5_KTNAME
        if test -s "$KRB5_KTNAME" ; then
                if test x"$klist" != x ; then
                        if LANG=C $klist -k "$KRB5_KTNAME" | tail -n 4 | awk '{print $2}' | grep -q ^"$service"/ ; then
                                if ! testasuser "$user" -r ${KRB5_KTNAME:-/etc/krb5.keytab} ; then
                                        true
                                else
                                        false
                                fi
                        else
                                false
                        fi
                else
                        $default
                fi
        else
                false
        fi
}

function configtest() {
        local user= ldapuid= dbdir= file=
        # Check for simple-but-common errors.
        user=ldap
        prog=`basename ${slapd}`
        ldapuid=`id -u $user`
        # Unaccessible database files.
        dbdirs=""
        if [ -d $configdir ]; then
                for configfile in `ls -1 $configdir/cn\=config/olcDatabase*.ldif`; do
                        dbdirs=$dbdirs"
                        "`LANG=C egrep '^olcDbDirectory[[:space:]]*:[[:space:]]+[[:print:]]+$' $configfile | sed 's,^olcDbDirectory: ,,'`
                done
        elif [ -f $configfile ]; then
                        dbdirs=`LANG=C egrep '^directory[[:space:]]+' $configfile | sed 's,^directory[[:space:]]*,,'`
        else
                exit 6
        fi
        for dbdir in $dbdirs; do
                if [ ! -d $dbdir ]; then
                        exit 6
                fi
                for file in `find ${dbdir}/ -not -uid $ldapuid -and \( -name "*.dbb" -or -name "*.gdbm" -or -name "*.bdb" -or -name "__db.*" -or -name "log.*" -or -name alock \)` ; do
                        echo -n $"$file is not owned by \"$user\"" ; warning ; echo
                done
                if test -f "${dbdir}/DB_CONFIG"; then
                        if ! testasuser $user -r "${dbdir}/DB_CONFIG"; then
                                file=DB_CONFIG
                                echo -n $"$file is not readable by \"$user\"" ; warning ; echo
                        fi
                fi
        done
        # Unaccessible keytab with an "ldap" key.
        if checkkeytab $user ldap ; then
                file=${KRB5_KTNAME:-/etc/krb5.keytab}
                echo -n $"$file is not readable by \"$user\"" ; warning ; echo
        fi
        # Unaccessible TLS configuration files.
        if [ -d $configdir ]; then
                tlsconfigs=$(LANG=C sed \
                        -e '/^olcTLS\(CertificateFile\|CertificateKeyFile\|CACertificateFile\)/!d' \
                        -e ':a;N;s/\n //;ta;P;D' "${configdir}/cn=config.ldif" | \
                        awk '{print $2}' | sort -u
                )
        elif [ -f $configfile ]; then
                tlsconfigs=$(LANG=C egrep \
                        '^(TLSCACertificateFile|TLSCertificateFile|TLSCertificateKeyFile)[[:space:]]+' $configfile | \
                        awk '{print $2}' | sort -u
                )
        fi
        for file in $tlsconfigs ; do
                if ! testasuser $user -r $file ; then
                        echo -n $"$file is not readable by \"$user\"" ; warning ; echo
                fi
        done
        # Check the configuration file.
        slaptestout=`/sbin/runuser -m -s "$slaptest" -- "$user" "-u" 2>&1`
        slaptestexit=$?
#        slaptestout=`echo $slaptestout 2>/dev/null | grep -v "config file testing succeeded"`
        # print warning if slaptest passed but reports some problems
        if test $slaptestexit == 0 ; then
                if echo "$slaptestout" | grep -v "config file testing succeeded" >/dev/null ; then
                        echo -n $"Checking configuration files for $prog: " ; warning ; echo
                        echo "$slaptestout"
                fi
        fi
        # report error if configuration file is wrong
        if test $slaptestexit != 0 ; then
                echo -n $"Checking configuration files for $prog: " ; failure ; echo
                echo "$slaptestout"
                if /sbin/runuser -m -s "$slaptest" -- "$user" "-u" > /dev/null 2> /dev/null ; then
                        #dirs=`LANG=C egrep '^directory[[:space:]]+[[:print:]]+$' $configfile | awk '{print $2}'`
                        for directory in $dbdirs ; do
                                if test -r $directory/__db.001 ; then
                                        echo -n $"stale lock files may be present in $directory" ; warning ; echo
                                fi
                        done
                fi
                exit 6
        fi
}

function start() {
        [ -x $slapd ] || exit 5
        [ `id -u` -eq 0 ] || exit 4
        configtest
        # Define a couple of local variables which we'll need. Maybe.
        user=ldap
        prog=`basename ${slapd}`
        harg="$SLAPD_URLS"
        if test x$SLAPD_LDAP = xyes ; then
                harg="$harg ldap:///"
        fi
        if test x$SLAPD_LDAPS = xyes ; then
                harg="$harg ldaps:///"
        fi
        if test x$SLAPD_LDAPI = xyes ; then
                harg="$harg ldapi:///"
        fi
        # System resources limit.
        if [ -n "$SLAPD_ULIMIT_SETTINGS" ]; then
                ulimit="ulimit $SLAPD_ULIMIT_SETTINGS &>/dev/null;"
        else
                ulimit=""
        fi
        # Start daemons.
        echo -n $"Starting $prog: "
        daemon --pidfile=$pidfile --check=$prog $ulimit ${slapd} -h "\"$harg\"" -u ${user} $OPTIONS $SLAPD_OPTIONS
        RETVAL=$?
        if [ $RETVAL -eq 0 ]; then
                touch $lockfile
                ln $slapd_pidfile $pidfile
        fi
        echo
        return $RETVAL
}

function stop() {
        # Stop daemons.
        prog=`basename ${slapd}`
        [ `id -u` -eq 0 ] || exit 4
        echo -n $"Stopping $prog: "

        # This will remove pid and args files from /var/run/openldap
        killproc -p $slapd_pidfile -d $SLAPD_SHUTDOWN_TIMEOUT ${slapd}
        RETVAL=$?

        # Now we want to remove lock file and hardlink of pid file
        [ $RETVAL -eq 0 ] && rm -f $pidfile $lockfile
        echo
        return $RETVAL
}

# See how we were called.
case "$1" in
        configtest)
                configtest
                ;;
        start)
                start
                RETVAL=$?
                ;;
        stop)
                stop
                RETVAL=$?
                ;;
        status)
                status -p $pidfile ${slapd}
                RETVAL=$?
                ;;
        restart|force-reload)
                stop
                start
                RETVAL=$?
                ;;
        condrestart|try-restart)
                status -p $pidfile ${slapd} > /dev/null 2>&1 || exit 0
                stop
                start
                ;;
        usage)
                echo $"Usage: $0 {start|stop|restart|force-reload|status|condrestart|try-restart|configtest|usage}"
                RETVAL=0
                ;;
        *)
                echo $"Usage: $0 {start|stop|restart|force-reload|status|condrestart|try-restart|configtest|usage}"
                RETVAL=2
esac

exit $RETVAL

However, if I change

Code:

daemon --pidfile=$pidfile --check=$prog $ulimit ${slapd} -h "\"$harg\"" -u ${user} $OPTIONS $SLAPD_OPTIONS
in function start() to

Code:

daemon --pidfile=$pidfile --check=$prog $ulimit ${slapd} -h ldap://192.168.0.10 -u ${user} $OPTIONS $SLAPD_OPTIONS
where 192.168.0.10 is the ip address of the host.

then

Code:

service slapd start
works.

For more information, if I echo

Code:

$prog $ulimit ${slapd} -h "\"$harg\"" -u ${user} $OPTIONS $SLAPD_OPTIONS
in function start(), I get

Code:

slapd /usr/sbin/slapd -h "ldap:/// ldapi:///" -u ldap
When I run this in the command line, the slapd service also starts successfully.

So, it looks

Code:

$prog $ulimit ${slapd} -h "\"$harg\"" -u ${user} $OPTIONS $SLAPD_OPTIONS
does not work only in /etc/init.d/slapd.

Does anyone know the reason for this and help me to solve the problem without changing the original /etc/init.d/slapd file.

Thanks and regards,
Chen Bo

eeekster 01-20-2012 10:51 PM

Does it give an error when it "doesn't work"? Did you check what's in /etc/openldap/slapd.conf?


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