OpenLDAP : Add User Accounts2024/05/14 |
Add LDAP User accounts to the OpenLDAP Server.
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[1] | Add a User Account. |
# generate encrypted password [root@dlp ~]# slappasswd New password: Re-enter new password: {SSHA}xxxxxxxxxxxxxxxxx
[root@dlp ~]#
vi ldapuser.ldif
# create new
# replace the section [dc=***,dc=***] to your own suffix dn: uid=fedora,ou=People,dc=srv,dc=world objectClass: inetOrgPerson objectClass: posixAccount objectClass: shadowAccount cn: Fedora sn: Linux userPassword: {SSHA}xxxxxxxxxxxxxxxxx loginShell: /bin/bash uidNumber: 2000 gidNumber: 2000 homeDirectory: /home/fedora dn: cn=fedora,ou=Group,dc=srv,dc=world objectClass: posixGroup cn: Fedora gidNumber: 2000 memberUid: fedora ldapadd -x -D cn=Manager,dc=srv,dc=world -W -f ldapuser.ldif Enter LDAP Password: adding new entry "uid=fedora,ou=People,dc=srv,dc=world" adding new entry "cn=fedora,ou=Group,dc=srv,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, free to modify #!/bin/bash SUFFIX='dc=srv,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 "$USER_NAME" | cut -d' ' -f2)" [ ! "$LDAP_SN" ] && LDAP_SN="$USER_NAME" LASTCHANGE_FLAG="$(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 ) sh ldapuser.sh [root@dlp ~]# ldapadd -x -D cn=Manager,dc=srv,dc=world -W -f ldapuser.ldif Enter LDAP Password: adding new entry "uid=redhat,ou=People,dc=srv,dc=world" adding new entry "uid=debian,ou=People,dc=srv,dc=world" adding new entry "uid=ubuntu,ou=People,dc=srv,dc=world" adding new entry "uid=centos,ou=People,dc=srv,dc=world" adding new entry "cn=redhat,ou=Group,dc=srv,dc=world" adding new entry "cn=debian,ou=Group,dc=srv,dc=world" adding new entry "cn=ubuntu,ou=Group,dc=srv,dc=world" adding new entry "cn=centos,ou=Group,dc=srv,dc=world" |
[3] | To delete LDAP User or Group, do like follows. |
[root@dlp ~]# ldapdelete -x -W -D 'cn=Manager,dc=srv,dc=world' "uid=fedora,ou=People,dc=srv,dc=world" Enter LDAP Password: [root@dlp ~]# ldapdelete -x -W -D 'cn=Manager,dc=srv,dc=world' "cn=fedora,ou=Group,dc=srv,dc=world" Enter LDAP Password: |
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