OpenLDAP : LDAP over SSL/TLS2024/05/20 |
Configure LDAP over SSL/TLS to use secure encrypted connection.
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[1] | |
[2] | Configure LDAP Server. |
root@dlp:~#
root@dlp:~# chown openldap:openldap /etc/ldap/sasl2/server.key \
/etc/ldap/sasl2/server.crt
root@dlp:~#
vi mod_ssl.ldif # create new dn: cn=config changetype: modify replace: olcTLSCertificateFile olcTLSCertificateFile: /etc/ldap/sasl2/server.crt - replace: olcTLSCertificateKeyFile olcTLSCertificateKeyFile: /etc/ldap/sasl2/server.key ldapmodify -Y EXTERNAL -H ldapi:/// -f mod_ssl.ldif SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 modifying entry "cn=config"root@dlp:~# systemctl restart slapd
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[3] | Configure LDAP Client. If you'd like to make sure the connection between LDAP server and client is encrypted, use tcpdump or other network capture softwares on LDAP server. |
root@node01:~#
vi /etc/nslcd.conf # line 29 : add ssl start_tls tls_reqcert allow node01 login: noble # LDAP user Password: Welcome to Ubuntu 24.04 LTS (GNU/Linux 6.8.0-31-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/pro ..... ..... noble@node01:~$ # logined |
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