RHEL6 LDAP server configuration issue and solve

2024-06-28 16:02:34

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SummaryPRoblem and resolveno DB_CONFIG filedb_openvarlibldapid2entrybdb failed No such file or directory 2Permission denied for etcopenldapslapddcnconfigldifSuccessful resultReference

Summary

Encountered quite a few problems when configure LDAP simple server on RHEL6, resolved all the issues through the internet. Refer to the reference link for more detail.

Problem and resolve

no DB_CONFIG file

bdb_db_open: warning - no DB_CONFIG file found in directory /var/lib/ldap: (2). By copy the DB file to the relative folder, solved this issue.

[root@www openldap]# rm -rf /etc/openldap/slapd.d/*[root@www openldap]# ls /etc/openldap/slapd.d/[root@www openldap]# cp /usr/share/openldap-servers/DB_CONFIG.example /var/lib/ldap/DB_CONFIG[root@www openldap]# chown -R ldap:ldap /var/lib/ldap/[root@www openldap]# chown -R ldap:ldap /etc/openldap/slapd.d

db_open(/var/lib/ldap/id2entry.bdb) failed: No such file or directory (2)

[root@www openldap]# slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d/bdb_db_open: DB_CONFIG for suffix "dc=xionghuilin,dc=com" has changed.Performing database recovery to activate new settings.bdb_db_open: database "dc=xionghuilin,dc=com": recovery skipped in read-only mode. Run manual recovery if errors are encountered.bdb_db_open: database "dc=xionghuilin,dc=com": db_open(/var/lib/ldap/id2entry.bdb) failed: No such fileor directory (2).backend_startup_one (type=bdb, suffix="dc=xionghuilin,dc=com"): bi_db_open failed! (2)slap_startup failed (test would succeed using the -u switch)

At least run slapd once, this issue will be resolved.

[root@www openldap]# /etc/init.d/slapd startStarting slapd: [ OK ]

See the result:

[root@www openldap]# ls /etc/openldap/slapd.d/cn=config cn=config.ldif[root@www openldap]# ls /var/lib/ldap/alock __db.002 __db.004 __db.006 dn2id.bdb log.0000000001__db.001 __db.003 __db.005 DB_CONFIG id2entry.bdb

Permission denied for “/etc/openldap/slapd.d/cn=config.ldif”

[root@www openldap]# /etc/init.d/slapd startChecking configuration files for slapd: [FAILED]ldif_read_file: Permission denied for "/etc/openldap/slapd.d/cn=config.ldif"slaptest: bad configuration file!

Refer to this Link and this Link, change the ownership of the /etc/openldap/slapd.d

[root@www openldap]# chown -R ldap.ldap /etc/openopenct.conf openldap/[root@www openldap]# chown -R ldap.ldap /etc/openldap/slapd.d[root@www openldap]# /etc/init.d/slapd startStarting slapd: [ OK ]

Successful result

[root@www openldap]# slaptest -f /etc/openldap/slapd.confconfig file testing succeeded[root@www openldap]# slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d/config file testing succeeded