https://bugs.openldap.org/show_bug.cgi?id=9199

Bug ID: 9199 Summary: Disable IPv6 makes listener work on IP address but hostname or localhost Product: OpenLDAP Version: 2.4.49 Hardware: All OS: Linux Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs@openldap.org Reporter: st-wong@cuhk.edu.hk Target Milestone: ---

Hi,

We're compiling 2.4.49 on CentOS8.

Make test fails at "test000-rootdse" with error Can't contact LDAP server. Debug log shows error "Address already in use".

We're quite sure the port (9011) is not in use.

Starting slapd with test command verified the error:

../servers/slapd/slapd -f testrun/slapd.1.conf -h ldap://localhost:9011

Found that it's okay to start slapd if listener URL is using IP address instead.

Checked ldap_url_parse* call may not work as expected with V6 disabled (configure option --disable-ipv6).

Re-do configuration and make without "--disable-ipv6" works as expected.

Would you help? Thanks.