Setting up mirroring between 2 servers - (ldap1 and ldap2)

Have a self signed cert installed on ldap1(provider) and connecting to ldap2(consumer) which is using the same cert as ldap1.

What I'm not sure about is can I put the same self signed cert on both ldap1 and ldap2? Or on ldap2 create a self signed cert and copy it to ldap1 and register it using (certutil) to fix the issue below?

Thanks!

[root@ldap1 log]# slapd -d Sync @(#) $OpenLDAP: slapd 2.4.23 (Feb 3 2014 19:11:35) $

mockbuild@c6b10.bsys.dev.centos.org:/builddir/build/BUILD/openldap-2.4.23/openldap-2.4.23/build-servers/servers/slapd /etc/openldap/slapd.conf: line 149: warning, destination attributeType 'sAMAccountName' is not defined in schema PROXIED attributeDescription "SAMACCOUNTNAME" inserted. /etc/openldap/slapd.conf: line 199: rootdn is always granted unlimited privileges. bdb_monitor_db_open: monitoring disabled; configure monitor database to enable slapd starting TLS: error: the certificate '/etc/openldap/certs/testldap1cert.pem' could not be found in the database - error -8174:security library: bad database.. TLS: certificate '/etc/openldap/certs/testldap1cert.pem' successfully loaded from PEM file. TLS: no unlocked certificate for certificate 'E=sterling.sahaydak@example.com,CN=ldap1.example.net,OU=IT,O=example,L=xxxx,ST=xx,C=xx'. TLS: hostname (ldap2.example.net) does not match common name in certificate (ldap1.example.net). TLS: can't connect: TLS error -8157:Certificate extension not found.. slap_client_connect: URI=ldaps://ldap2.example.net DN="cn=testsync,ou=roles,dc=example,dc=net" ldap_sasl_bind_s failed (-1) do_syncrepl: rid=001 rc -1 retrying