Bug 2111181
| Summary: | CNAME records missing in DNS of locations-enabled domain | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 9 | Reporter: | Julien Rische <jrische> |
| Component: | ipa | Assignee: | Julien Rische <jrische> |
| Status: | CLOSED NOTABUG | QA Contact: | ipa-qe <ipa-qe> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 9.0 | CC: | ftrivino, rcritten, tomek, tscherf |
| Target Milestone: | rc | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-10-31 09:52:25 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2104185, 2148382 | ||
On IPA servers, there are no traces of locations-related CNAME records in /var/named/data/update.log log file. The zone dump in /var/named/dyndb-ldap/ipa/master/example.com/raw does not contain expected CNAME records either. CNAME records are created when configuration and zones are reloaded manually # rndc reload However this command is not supposed to have impact on dynamic zones: # rndc reload example.com. rndc: 'reload' failed: dynamic zone It seems that when assigning a location to a server, the bind9 configuration has to be reloaded using "rndc reconfig" (reloading the configuration after server installation is not enough). This is actually not a bug. Restarting bind9 is required after assigning a location to a server, as explained in the documentation: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/working_with_dns_in_identity_management/managing-dns-locations-in-idm_working-with-dns-in-identity-management#assigning-an-idm-server-to-a-dns-location-using-the-idm-web-ui_managing-dns-locations-in-idm |
When an IPA server is added to a certain location, CNAME records are supposed to replace the following SRV records: _ldap._tcp.example.com. _kerberos._tcp.example.com. _kerberos._udp.example.com. _kerberos-master._tcp.example.com. _kerberos-master._udp.example.com. _kpasswd._tcp.example.com. _kpasswd._udp.example.com. However, in the majority of cases, these records are not replaced: $ dig @server-a.example.com _kerberos._udp.example.com. SRV +noall +answer _kerberos._udp.example.com. 86400 IN SRV 0 100 88 server-a.example.com. _kerberos._udp.example.com. 86400 IN SRV 0 100 88 server-b.example.com. While it should be: $ dig @server-a.example.com _kerberos._udp.example.com. SRV +noall +answer _kerberos._udp.example.com. 86400 IN CNAME _kerberos._udp.a._locations.example.com. _kerberos._udp.a._locations.example.com. 86400 IN SRV 0 100 88 server-a.example.com. _kerberos._udp.a._locations.example.com. 86400 IN SRV 50 100 88 server-b.example.com. The issue seems to be occurring during the synchronization from 389ds to bind9, because the CNAME template is there: $ ldapsearch -H ldaps://server-a.example.com -QY GSSAPI -LLL -o ldif-wrap=no -s one -b 'idnsname=example.com.,cn=dns,dc=example,dc=com' idnsTemplateAttribute dn: idnsname=_ldap._tcp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _ldap._tcp.\{substitutionvariable_ipalocation\}._locations dn: idnsname=_kerberos._tcp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _kerberos._tcp.\{substitutionvariable_ipalocation\}._locations dn: idnsname=_kerberos._udp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _kerberos._udp.\{substitutionvariable_ipalocation\}._locations dn: idnsname=_kerberos-master._tcp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _kerberos-master._tcp.\{substitutionvariable_ipalocation\}._locations dn: idnsname=_kerberos-master._udp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _kerberos-master._udp.\{substitutionvariable_ipalocation\}._locations dn: idnsname=_kpasswd._tcp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _kpasswd._tcp.\{substitutionvariable_ipalocation\}._locations dn: idnsname=_kpasswd._udp,idnsname=example.com.,cn=dns,dc=example,dc=com idnsTemplateAttribute;cnamerecord: _kpasswd._udp.\{substitutionvariable_ipalocation\}._locations