Below are the details of my installation, both without firewall and selinux disabled.
####################################### IPA SERVER
Hostname: ipa1.din.intranet
IP Addr: 10.30.0.25
Release: CentOS release 6.6 (Final) x86_64
###################################### oVirt Engine Version: 3.5.0.1-1.el6
Hostname: sequoia.din.intranet
IP Addr: 10.30.0.27
Release: CentOS release 6.6 (Final) x86_64
######################################
[root@sequoia ~]# host -t SRV _ldap._tcp.din.intranet
_ldap._tcp.din.intranet has SRV record 0 100 389 ipa1.din.intranet.
[root@sequoia ~]# host -t SRV _kerberos._tcp.din.intranet
_kerberos._tcp.din.intranet has SRV record 0 100 88 ipa1.din.intranet.
[root@sequoia ~]# host -t SRV _kerberos._udp.din.intranet
_kerberos._udp.din.intranet has SRV record 0 100 88 ipa1.din.intranet.
[root@sequoia ~]# host -t SRV _kpasswd._udp.din.intranet
_kpasswd._udp.din.intranet has SRV record 0 100 464 ipa1.din.intranet.
[root@sequoia ~]# host -t A ipa1.din.intranet
ipa1.din.intranet has address 10.30.0.25
[root@sequoia ~]# ldapsearch -x -b "dc=din, dc=intranet" uid=admin
extended LDIF
LDAPv3
base <dc=din, dc=intranet> with scope subtree
filter: uid=admin
requesting: ALL
admin, users, compat, din.intranet
dn: uid=admin,cn=users,cn=compat,dc=din,dc=intranet
admin, users, accounts, din.intranet
dn: uid=admin,cn=users,cn=accounts,dc=din,dc=intranet
uid: admin
krbPrincipalName: admin@DIN.INTRANET
cn: Administrator
sn: Administrator
uidNumber: 1250800000
gidNumber: 1250800000
homeDirectory: /home/admin
loginShell: /bin/bash
gecos: Administrator
search result
search: 2
result: 0 Success
numResponses: 3
numEntries: 2
[root@sequoia ~]# getent passwd admin
admin:*:1250800000:1250800000:Administrator:/home/admin:/bin/bash
[root@sequoia ~]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: admin@DIN.INTRANET
Valid starting Expires Service principal
10/29/14 15:37:46 10/30/14 15:37:45 krbtgt/DIN.INTRANET@DIN.INTRANET
[root@sequoia ~]# engine-manage-domains add --domain=din.intranet --provider=ipa --user=admin
Enter password:
Error: exception message: ipa1.din.intranet.
Failure while testing domain din.intranet. Details: Kerberos error. Please check log for further details.
######################################
[root@ipa1 ~]# tail -f /var/log/krb5kdc.log
Oct 29 15:25:22 ipa1.din.intranet krb5kdc[2007](info): AS_REQ (4 etypes {18 17 16 23})
10.30.0.27: NEEDED_PREAUTH: host/sequoia.din.uem.br@DIN.INTRANET for krbtgt/DIN.INTRANET@DIN.INTRANET, Additional pre-authentication required
Oct 29 15:25:22 ipa1.din.intranet krb5kdc[2006](info): AS_REQ (4 etypes {18 17 16 23})
10.30.0.27: ISSUE: authtime 1414603522, etypes {rep=18 tkt=18 ses=18}, host/sequoia.din.uem.br@DIN.INTRANET for krbtgt/DIN.INTRANET@DIN.INTRANET
Oct 29 15:25:22 ipa1.din.intranet krb5kdc[2007](info): TGS_REQ (4 etypes {18 17 16 23})
10.30.0.27: ISSUE: authtime 1414603522, etypes {rep=18 tkt=18 ses=18}, host/sequoia.din.uem.br@DIN.INTRANET for ldap/ipa1.din.intranet@DIN.INTRANET
######################################
Why engine-manage-domains does not work?