[Users] DNS reverse configuration

[Roy Golan]

On 04/04/2013 09:45 PM, Eduardo Ramos wrote:
> Hi all!
>
> I'm trying to connect my ovirt-engine in a samba4 server. Samba4 is 
> ActiveDirectory complaint. But when I use engine-manage-domains, it 
> returns me a strange message:
>
> [root at ovirt-dir eduardo]# engine-manage-domains -action=add 
> -domain=gsr.inpe.br -provider=activeDirectory -user=Administrator 
> -interactive
> Enter password:
>
> Error: Authentication Failed. Error in DNS configuration. Please 
> verify the oVirt Engine host has a valid reverse DNS (PTR) record.. 
> Problematic domain is: getconnection: driver class 
> name=org.postgresql.xa.pgxadatasourcegetconnection: 
> url=jdbc:postgresql://localhost:5432/enginegetconnection: considering 
> encrypted passord. 


it looks like engine-config have problems opening a db connection. The 
DNS reported error is a bug and is shown due to the connection error.

you should get that same error if you'll use
  $ engine.config -a

you have some problem connecting to the localhost postgres instance 
using the password entered during setup probably.

is your postgresql instance up the engine is able to connect to the db? 
engine-config is getting the password from the same source where the 
engine does.

also, a PTR record is no longer needed since openjdk 7 due to a change 
in the impl of the krb5 module.


> secdomain=encryptdbpasswordexecute: beginning execution of action 
> action_get.fetching key=domainname ver=general
> Failure while applying Kerberos configuration. Details: Authentication 
> Failed. Error in DNS configuration. Please verify the oVirt Engine 
> host has a valid reverse DNS (PTR) record.
>
> Using host command, I got the following results:
>
> [root at ovirt-dir eduardo]# host ovirt-dir.gsr.inpe.br
> ovirt-dir.gsr.inpe.br has address 150.163.80.125
>
> [root at ovirt-dir eduardo]# host 150.163.80.125
> 125.80.163.150.in-addr.arpa domain name pointer ovirt-dir.gsr.inpe.br.
>
> [root at ovirt-dir eduardo]# host -t srv _kerberos._tcp.gsr.inpe.br
> _kerberos._tcp.gsr.inpe.br has SRV record 1 0 88 samba4.gsr.inpe.br.
>
> [root at ovirt-dir eduardo]# host samba4.gsr.inpe.br
> samba4.gsr.inpe.br has address 150.163.73.109
>
> [root at ovirt-dir eduardo]# host 150.163.73.109
> 109.73.163.150.in-addr.arpa domain name pointer samba4.gsr.inpe.br.
>
> As you can see, it is everything ok. No DNS problem.
>
> Someone have any idea?
>
> Thanks.
>
>
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