Add LDAP User Accounts in the OpenLDAP Server

Add LDAP User Accounts in the OpenLDAP Server.
[1]	Add a user.

# generate encrypted password [root@dlp ~]#  slappasswd  New password: Re-enter new password: {SSHA}xxxxxxxxxxxxxxxxx [root@dlp ~]#  vi ldapuser.ldif # create new # replace to your own domain name for "dc=***,dc=***" section dn: uid=cent,ou=People,dc=server,dc=world objectClass: inetOrgPerson objectClass: posixAccount objectClass: shadowAccount cn: Cent sn: Linux userPassword: {SSHA}xxxxxxxxxxxxxxxxx loginShell: /bin/bash uidNumber: 1000 gidNumber: 1000 homeDirectory: /home/cent dn: cn=cent,ou=Group,dc=server,dc=world objectClass: posixGroup cn: Cent gidNumber: 1000 memberUid: cent [root@dlp ~]#  ldapadd -x -D cn=Manager,dc=server,dc=world -W -f ldapuser.ldif  Enter LDAP Password: adding new entry "uid=cent,ou=People,dc=server,dc=world" adding new entry "cn=cent,ou=Group,dc=server,dc=world"

[2]	Add users and groups in local passwd/group to LDAP directory.

[root@dlp ~]#  vi ldapuser.sh # extract local users and groups who have 1000-9999 digit UID # replace "SUFFIX=***" to your own domain name # this is an example #!/bin/bash SUFFIX='dc=server,dc=world' LDIF='ldapuser.ldif' echo -n > $LDIF GROUP_IDS=() grep "x:[1-9][0-9][0-9][0-9]:" /etc/passwd | (while read TARGET_USER do USER_ID="$(echo "$TARGET_USER" | cut -d':' -f1)" USER_NAME="$(echo "$TARGET_USER" | cut -d':' -f5 | cut -d' ' -f1,2)" [ ! "$USER_NAME" ] && USER_NAME="$USER_ID" LDAP_SN="$(echo "$USER_NAME" | cut -d' ' -f2)" LASTCHANGE_FLAG="$(grep "${USER_ID}:" /etc/shadow | cut -d':' -f3)" [ ! "$LASTCHANGE_FLAG" ] && LASTCHANGE_FLAG="0" SHADOW_FLAG="$(grep "${USER_ID}:" /etc/shadow | cut -d':' -f9)" [ ! "$SHADOW_FLAG" ] && SHADOW_FLAG="0" GROUP_ID="$(echo "$TARGET_USER" | cut -d':' -f4)" [ ! "$(echo "${GROUP_IDS[@]}" | grep "$GROUP_ID")" ] && GROUP_IDS=("${GROUP_IDS[@]}" "$GROUP_ID") echo "dn: uid=$USER_ID,ou=People,$SUFFIX" >> $LDIF echo "objectClass: inetOrgPerson" >> $LDIF echo "objectClass: posixAccount" >> $LDIF echo "objectClass: shadowAccount" >> $LDIF echo "sn: $LDAP_SN" >> $LDIF echo "givenName: $(echo "$USER_NAME" | awk '{print $1}')" >> $LDIF echo "cn: $USER_NAME" >> $LDIF echo "displayName: $USER_NAME" >> $LDIF echo "uidNumber: $(echo "$TARGET_USER" | cut -d':' -f3)" >> $LDIF echo "gidNumber: $(echo "$TARGET_USER" | cut -d':' -f4)" >> $LDIF echo "userPassword: {crypt}$(grep "${USER_ID}:" /etc/shadow | cut -d':' -f2)" >> $LDIF echo "gecos: $USER_NAME" >> $LDIF echo "loginShell: $(echo "$TARGET_USER" | cut -d':' -f7)" >> $LDIF echo "homeDirectory: $(echo "$TARGET_USER" | cut -d':' -f6)" >> $LDIF echo "shadowExpire: $(passwd -S "$USER_ID" | awk '{print $7}')" >> $LDIF echo "shadowFlag: $SHADOW_FLAG" >> $LDIF echo "shadowWarning: $(passwd -S "$USER_ID" | awk '{print $6}')" >> $LDIF echo "shadowMin: $(passwd -S "$USER_ID" | awk '{print $4}')" >> $LDIF echo "shadowMax: $(passwd -S "$USER_ID" | awk '{print $5}')" >> $LDIF echo "shadowLastChange: $LASTCHANGE_FLAG" >> $LDIF echo >> $LDIF done for TARGET_GROUP_ID in "${GROUP_IDS[@]}" do LDAP_CN="$(grep ":${TARGET_GROUP_ID}:" /etc/group | cut -d':' -f1)" echo "dn: cn=$LDAP_CN,ou=Group,$SUFFIX" >> $LDIF echo "objectClass: posixGroup" >> $LDIF echo "cn: $LDAP_CN" >> $LDIF echo "gidNumber: $TARGET_GROUP_ID" >> $LDIF for MEMBER_UID in $(grep ":${TARGET_GROUP_ID}:" /etc/passwd | cut -d':' -f1,3) do UID_NUM=$(echo "$MEMBER_UID" | cut -d':' -f2) [ $UID_NUM -ge 1000 -a $UID_NUM -le 9999 ] && echo "memberUid: $(echo "$MEMBER_UID" | cut -d':' -f1)" >> $LDIF done echo >> $LDIF done ) [root@dlp ~]#  sh ldapuser.sh  [root@dlp ~]#  ldapadd -x -D cn=Manager,dc=server,dc=world -W -f ldapuser.ldif  Enter LDAP Password: adding new entry "uid=cent,ou=People,dc=server,dc=world" adding new entry "uid=redhat,ou=People,dc=server,dc=world" adding new entry "uid=ubuntu,ou=People,dc=server,dc=world" adding new entry "uid=debian,ou=People,dc=server,dc=world" adding new entry "cn=cent,ou=Group,dc=server,dc=world" adding new entry "cn=redhat,ou=Group,dc=server,dc=world" adding new entry "cn=ubuntu,ou=Group,dc=server,dc=world" adding new entry "cn=debian,ou=Group,dc=server,dc=world"

[3]	If you'd like to delete LDAP User or Group, Do as below.

[root@dlp ~]#  ldapdelete -x -W -D 'cn=Manager,dc=server,dc=world' "uid=cent,ou=People,dc=server,dc=world"  Enter LDAP Password: [root@dlp ~]#  ldapdelete -x -W -D 'cn=Manager,dc=server,dc=world' "cn=cent,ou=Group,dc=server,dc=world"  Enter LDAP Password: