blance3459@hotmail.com wrote:

Full_Name: Barry Lance Version: 2.4.28 OS: Ubuntu 12.04 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (70.226.37.226)

It appears the submitter found an alternate solution, but just for future reference this issue was the same as ITS#7381, now fixed in git master.

Two servers: Master (192.168.1.1) and Replica (192.168.1.2) both running slap 2.4.28 and ubuntu 12.04. Replica is a replication partner of Master using syncrepl. Replication is working fine. When I attempt to add a chain overlay to Replica to send all writes over to the master, it works exactly as expected allowing both normal users and the rootdn to make appropriate changes. However, once I either reboot the replica server or restart slapd, the chain overlay fails to allow any changes on the master. Looking at syslog shows that before the reboot/restart the requesting users' dn is proxied over as expected. After the restarting slapd or rebooting Replica, all changes are proxied anonymously (dn="").

I am using simple binds at this point in the project, but it doesn't seems to matter if I proxy in the clear, ldaps, or TLS the result is the same. All three methods can successfully negotiate a connection. I've even tried switching between using the rootdn and a different user as the binddn in my overlay, but the result is still the same no matter what I use for the binddn. When I look at my config, I notice that "chain-idassert-bind" appears to be hashed or encrypted in thew config. Is that normal? Just seems really odd that my config would work immediately when added, but fail after the the daemon has been restarted. Am I missing something really silly? Hopefully, someone can assist me on this. I've been driving myself crazy trying to figure out why this behavior is occurring.

Disclaimer: I am using openldap as part of my capstone project for graduation. I'm not asking for anyone to do my "homework" for me, I'm just stuck on this one issue that I would love to resolve so I can move on to the Kerberos phase of my project (and maybe even study for an exam coming up in my algorithms class next week).

Here is my overlay config using the rootDN and TLS (on Replica):

dn: olcDatabase=ldap,olcOverlay={0}chain,olcDatabase={-1}frontend, cn=config changetype: add objectClass: olcLDAPConfig objectClass: olcChainDatabase olcDatabase: {0}ldap olcDbURI: "ldap://master.example.net/" olcDbRebindAsUser: TRUE olcDbIDAssertBind: bindmethod=simple binddn="cn=admin,dc=example,dc=net" credentials=(secret) mode=self starttls=critical tls_cacert=/etc/ssl/certs/cacert.pem tls_reqcert=demand

And without TLS (also on Replica):

dn: olcDatabase=ldap,olcOverlay={0}chain,olcDatabase={-1}frontend, cn=config changetype: add objectClass: olcLDAPConfig objectClass: olcChainDatabase olcDatabase: {0}ldap olcDbURI: "ldap://master.example.net/" olcDbRebindAsUser: TRUE olcDbIDAssertBind: bindmethod=simple binddn="cn=admin,dc=example,dc=net" credentials=(secret) mode=self