I set up a FreeIPA master and replica behind an elastic load balancer in AWS cloud. FreeIPA Clients will be contacting the replica and the master sever through the load balancer so the dns name used when configurting the clients is the ELB CNAME. The problem is when retreiving ldap data and during the authentication, the SSL handshake fails as the certificate sent back from the master or replica has a hostname different than the one used in the sssd ( the ELB CNAME). so the connection is terminated. There is a workaround which is the use reqcert=allow but this bring a security issue with a MITM attack. another solution i found is the use SAN. I was able to add the ELB DNS as a SAN in freeipa servers certificate. i made sure it is there by downloading the certificate and checking that the elb san exist but when testing it the same problem remain. Please help.