--------------------------------------------------------------------------Using vpopmail with LDAP is not very common.The LDAP modules are functional, but because it not as popular as using CDB or MySQL auth systems, you should be wary of implementing the LDAP system on a production server.--------------------------------------------------------------------------2003/Dec/29 : Michael Bowe <mbowe@pipeline.com.au>A QUICK GUIDE TO VPOPMAIL WITH LDAP~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Latest version of this guide is available fromhttp://www.pipeline.com.au/staff/mbowe/isp/vpopmail-ldap.htmNote that I am not an LDAP expert, so some of the terminology used withinthis guide may not be 100% correct. I wrote this guide because many peopleon the vchkpw mailing list had questions about how to get vpopmail/ldaprunning. The docs we had so far (below) were a little difficult to understandand follow for an LDAP beginner, so I decided to put together this docin the hope of presenting an easy-to-follow installation guide.OpenLDAP can operate with a number of database filesystems. For this examplewe are going to use the bdb database system.Download/compile BDB  cd /usr/local/src  wget http://www.sleepycat.com/update/snapshot/db-4.2.52.tar.gz  tar xzf db-4.2.52.tar.gz  cd db-4.2.52  cd build_unix  ../dist/configure  make  make install  cd ..Download/compile OpenLDAP  http://www.openldap.org/software/download/  wget http://www.planetmirror.com/pub/openldap/openldap-release/openldap-2.1.23.tgz  tar xzf openldap-2.1.23.tgz   cd openldap-2.1.23  env CPPFLAGS=-I/usr/local/BerkeleyDB.4.2/include \    LDFLAGS=-L/usr/local/BerkeleyDB.4.2/lib \    ./configure  make depend  make  make install  cd..Download/configure/compile vpopmail  Make the user accounts    # If you are using RH8.0, you will probably need to run this following command,    # because RH8.0 comes preconfigured with UID/GID 89 allocated to postfix    #    # userdel postfix    groupadd -g 89 vchkpw    useradd -g vchkpw -u 89 vpopmail    # We recommend you use the user and group id's of 89. The FreeBSD folks    # have reserved 89 for the group and 89 for the user for vpopmail.  Feel    # free to have the OS assign the group/user id (for example, Solaris won't     # allow gid 89).  Download and unpack the source    cd /usr/local/src    wget http://telia.dl.sourceforge.net/sourceforge/vpopmail/vpopmail-5.4.4.tar.gz    tar xzf vpopmail-5.4.4.tar.gz    chown -R root.root vpopmail-5.4.4    cd vpopmail-5.4.4  Setup the LDAP support in the vpopmail sources    vi vldap.h      #define VLDAP_SERVER "localhost"      #define VLDAP_PORT LDAP_PORT      #define VLDAP_USER "cn=vpopmailuser, o=vpopmail"      #define VLDAP_PASSWORD "vpoppasswd"      #define VLDAP_BASEDN "o=vpopmail"  Compile vpopmail    ./configure --enable-auth-module=ldap    make    make install-strip Configure/start the OpenLDAP server  Copy the vpopmail ldap schema into the OpenLDAP schema directory    cd ldap    cp qmailUser.schema /usr/local/etc/openldap/schema  Configure OpenLDAP to host the vpopmail database      cp slapd.conf /usr/local/etc/openldap    chmod 600 /usr/local/etc/openldap/slapd.conf    chown root.root /usr/local/etc/openldap/slapd.conf    Start the OpenLDP server    /usr/local/libexec/slapd     If all goes well, 'ps axf' should give something like this :    18415 ?        S      0:00 /usr/local/libexec/slapd    18416 ?        S      0:00  \_ /usr/local/libexec/slapd    18417 ?        S      0:00      \_ /usr/local/libexec/slapd    Now create the vpopmail database in the LDAP system    ldapadd -f vpopmail.ldif -x -w vpoppasswd -D'cn=vpopmailuser,o=vpopmail'  If all goes well you will see something like :    adding new entry "o=vpopmail"  Get the ldap server to confirm that the vpopmail database exists     ldapsearch -x -b 'o=vpopmail'Now you should be right to go!As you start adding domains and users, the ldap directory tree will eventually look like this :  vpopmail (o)    somedomain1.com (ou)      someuser1       someuser2       someuser3    somedomain2.com (ou)      someuser1      someuser2      someuser3Other useful references I found on the net :  http://marc.theaimsgroup.com/?l=vchkpw&m=105781736114278&w=2  http://www.tiski.de/linux/patches/vpopmail/LDAP-VPOPMAIL.html**************************************************************************PREVIOUS VPOPMAIL/LDAP DOCUMENTATION :See the ldap directory for theqmailUser.schema and slapd.conf files!!!!!!!!!!!!!!!!!!!!! IMPORTANT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Only for 2.07+ (Not only but tested on it)I used OpenLDAP from SuSe 7.2 version OpenLDAP 2.0.7-Release 21 July 2000 7!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Start:first install one of ldap sources (rpm is fine :) )then create base ldif file thats looks like this ( or similar)second set up ldap (ok these are basic steps not a real ldap setup howto...)first create slapd.conf (or use default created by instalation)put into it next lines (on begining of file)------------------include     /etc/openldap/schema/qmailUser.schemaschemacheck off------------------(file definitions qmailUser.schema could be found at the end of this file)What that above means? That is include of qmailUser.schema definiton of qmail (vpopmail) specificattributes and is needed.then put these lines for database defitinion---------------------------------------------######################################################################## ldbm database definitions#######################################################################database ldbmsuffix      "o=vpop"rootdn      "cn=Manager, o=vpop"rootpw      probadirectory   /var/lib/ldapindex   objectClass             pres,eqindex   cn,sn,uid               eqindex   qmailUID,qmailGID   eqaccess to *        by self write        by dn="cn=manager,o=vpop" write        by * write------------------------------------------------ -------------------------------# vpopdn: o=vpopobjectClass: Organizationo: vpop-------------------------------name it first.ldif or whateverthen if all step above works  do next:-------- command to execute ----------ldapadd -x -w proba -D'cn=manager,o=vpop' < first.ldif-------- -----------------------------and that should reply to you something likeadding new entry "o=vpop"Next thing you should check is does it realy works ;)check it simply typing command-----------command --------ldapsearch -x -b 'o=vpop'---------------------------output is shown below (something like propably not same) ---out---version: 2## filter: (objectclass=*)# requesting: ALL## vpopdn: o=vpopobjectClass: Organizationo: vpop---out---Ok if all that passed ok ( I'll return to qmailUser.schema later)you have ldap server up and running (this will not make you ldap guru :)even I do not know ldap that much to call myself "good ldaper or like" :) )Next you should compile vpopmail source you could use next steps for it edit vldap.h and change next lines to yuore settings( // lines are mycomments you will not find them in vldap.h :) ) --------