Fwd: psql+krb5

Started by rahimeh khodadadiabout 16 years ago7 messages

rahimeh.khodadadi@gmail.com

about 16 years ago

---------- Forwarded message ----------
From: rahimeh khodadadi <rahimeh.khodadadi@gmail.com>
Date: 2009/11/29
Subject: Re: psql+krb5
To: Denis Feklushkin <denis.feklushkin@gmail.com>

These items have added after my sending.

I repeat again my configurations:

*
1) The configuration of krb5.conf is:
[realms]
EXAMPLE.COM <http://example.com/> ={

kdc=star :88
admin_server=star:749
default_domain= example.com
}
.....*

2) Then, I created principal as* " postgres/star@EXAMPLE.COM "* and its
password is saved in* '/usr/local/pgsql/data/postgresql.keytab' .*

(star is localhost IP, but in hosts.conf I configure like: 213.233.169.93
star)

3) I setup *postgresql.conf *as below:

krb_server_keyfile = '/usr/local/pgsql/data/
postgresql.keytab'
krb_srvname = 'postgres/star@EXAMPLE.COM'

krb_server_hostname = 'star' # empty string matches any keytab entry
krb_caseins_users = off

4) I *create user "frank"* in Psql .

5) Then I set up* hba.conf :*

host all all 0.0.0.0/0 krb5
host all all 127.0.0.1/32 krb5

When I want to connect to Postgresql, it gives error.

# *kinit frank*

[root@star bin]# *./psql -h star -U frank -d test*

psql: *krb5_sendauth: Bad application version was sent (via sendauth)*

I should mention that * both postgresql server and krb-server are in same
system* and* my IP is acquring from dhcp server of university*. Where is
wrong.

2009/11/29 Denis Feklushkin <denis.feklushkin@gmail.com>

On Sun, 29 Nov 2009 14:23:52 +0330
rahimeh khodadadi <rahimeh.khodadadi@gmail.com> wrote:

Thanks for your replying. My detail of configuration is:

I try to setup kerberos authentication in Postgresql 8.1.18 on centos.

But I have some problem.

1) The configuration of krb5.conf is:
[realms]
EXAMPLE.COM <http://example.com/><http://EXAMPLE.COM
<http://example.com/>> ={

kdc=star :88
admin_server=star:749
default_domain= example.com<http://example.com

}
.....

2) Then, I created principal as " postgres/star@EXAMPLE.COM<mailto:
star@EXAMPLE.COM> " and its password is saved in
'/usr/local/pgsql/data/postgresql.keytab' .

(star is localhost IP, but in hosts.conf I configure like:
213.233.169.93 star)

3) I setup postgresql.conf as below:

krb_server_keyfile = '/usr/local/pgsql/data/
postgresql.keytab'
krb_srvname = 'postgres/star@EXAMPLE.COM<mailto:star@EXAMPLE.COM>'

krb_server_hostname = 'star' # empty string matches any
keytab entry
krb_caseins_users = off

4) I create user "frank" in Psql .

5) Then I set up hba.conf :

host all all 0.0.0.0/0<http://0.0.0.0/0>
krb5
host all all 127.0.0.1/32<http://127.0.0.1/32>
krb5

When I want to connect to Postgresql, it gives error.

# kinit frank

[root@star bin]# ./psql -h star -U frank -d test

psql: krb5_sendauth: Bad application version was sent (via sendauth)

some changes in users gives below error :
"[root@www bin]# ./psql -h 213.233.168.249 -U postgres
psql: Kerberos 5 authentication rejected: Wrong principal in
request"

I should mention that both postgresql server and krb-server are in
same system and my IP is acquring from dhcp server of university.
Where is wrong.

2009/11/29 Denis Feklushkin <denis.feklushkin@gmail.com>

On Sun, 29 Nov 2009 10:48:30 +0330
rahimeh khodadadi <rahimeh.khodadadi@gmail.com> wrote:

Hi,

When I want to connect to psql via krb5 in Linux, it gives me
error like: "[root@www bin]# ./psql -h 213.233.168.249 -U
postgres psql: Kerberos 5 authentication rejected: Wrong
principal in request"

Что в логах KDC?

^^^^^^^^^^^^^^^^ !!!

И ещё, в тексте который Вы дали встречаются пробелы в именах
принципалов и странные записи "<mailto:star@EXAMPLE.COM>"

При настройке важно чтобы ничего этого небыло

--
With Best Regards
Miss.KHodadadi

Import Notes

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Robert Haas

robertmhaas@gmail.com

about 16 years ago

In reply to: rahimeh khodadadi (#1)

Re: [HACKERS] Fwd: psql+krb5

2009/11/30 rahimeh khodadadi <rahimeh.khodadadi@gmail.com>:

---------- Forwarded message ----------
From: rahimeh khodadadi <rahimeh.khodadadi@gmail.com>
Date: 2009/11/29
Subject: Re: psql+krb5
To: Denis Feklushkin <denis.feklushkin@gmail.com>

Please review the guidelines for reporting a problem, which you can find here:

http://wiki.postgresql.org/wiki/Guide_to_reporting_problems

It seems to me that you've done the exact opposite of nearly
everything suggested there, starting with cross-posting your email to
four mailing lists at least three of which are irrelevant to the
problem that you're attempting to solve.

...Robert

Scott Marlowe

scott.marlowe@gmail.com

about 16 years ago

In reply to: Robert Haas (#2)

Re: [GENERAL] [HACKERS] Fwd: psql+krb5

Except that he posted a month ago and got no answers...

On Tue, Dec 1, 2009 at 8:22 AM, Robert Haas <robertmhaas@gmail.com> wrote:

2009/11/30 rahimeh khodadadi <rahimeh.khodadadi@gmail.com>:

---------- Forwarded message ----------
From: rahimeh khodadadi <rahimeh.khodadadi@gmail.com>
Date: 2009/11/29
Subject: Re: psql+krb5
To: Denis Feklushkin <denis.feklushkin@gmail.com>

Please review the guidelines for reporting a problem, which you can find here:

http://wiki.postgresql.org/wiki/Guide_to_reporting_problems

It seems to me that you've done the exact opposite of nearly
everything suggested there, starting with cross-posting your email to
four mailing lists at least three of which are irrelevant to the
problem that you're attempting to solve.

...Robert

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To make changes to your subscription:
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--
When fascism comes to America, it will be intolerance sold as diversity.

Robert Haas

robertmhaas@gmail.com

about 16 years ago

In reply to: Scott Marlowe (#3)

Re: [HACKERS] Fwd: psql+krb5

On Tue, Dec 1, 2009 at 11:26 AM, Scott Marlowe <scott.marlowe@gmail.com> wrote:

Except that he posted a month ago and got no answers...

Gee, I wonder why.

...Robert

Craig Ringer

craig@postnewspapers.com.au

about 16 years ago

In reply to: rahimeh khodadadi (#1)

Re: Fwd: psql+krb5

I've dropped all your cross-posts; this is just going to PgSQL-general.

On 30/11/2009 3:29 PM, rahimeh khodadadi wrote:

psql: *krb5_sendauth: Bad application version was sent (via sendauth)*

Have you verified that your Kerberos setup is otherwise working
correctly - it's handling logins, other apps work, etc?

Also: a search for your error message finds this post, which, while
related to a Windows kerberos server, seems to apply:

http://www.mail-archive.com/pgsql-general@postgresql.org/msg80403.html

That is: Make sure that the Kerberos service name matches everywhere.

I don't know much about Kerberos, not I suspect do all that many people
on the list, so I can't be of any more help.

--
Craig Ringer

Stephen Frost

sfrost@snowman.net

about 16 years ago

In reply to: Craig Ringer (#5)

Re: Fwd: psql+krb5

* Craig Ringer (craig@postnewspapers.com.au) wrote:

I've dropped all your cross-posts; this is just going to PgSQL-general.

Thanks for that.

On 30/11/2009 3:29 PM, rahimeh khodadadi wrote:

psql: *krb5_sendauth: Bad application version was sent (via sendauth)*

Also: a search for your error message finds this post, which, while
related to a Windows kerberos server, seems to apply:

It's the same kind of issue (wrong service name), but I think the real
problem is this:

krb_srvname = 'postgres/star@EXAMPLE.COM'

The documentation, I think, is pretty clear:
http://www.postgresql.org/docs/8.4/interactive/auth-methods.html#KERBEROS-AUTH

PostgreSQL operates like a normal Kerberos service. The name of the
service principal is servicename/hostname@realm.

servicename can be set on the server side using the krb_srvname
configuration parameter

The above should just be:

krb_srvname = 'postgres'

Or, better, just removed. Unless you're running under a Microsoft
Active Directory Kerberos environment, the default should 'just work'.

Additionally, this is also almost certainly wrong:

krb_server_hostname = 'star'

Again, referring to the same documentation:

hostname is the fully qualified host name of the server machine.

You really should have a proper FQDN set for this system. I would also
recommend using a real domain rather than 'EXAMPLE.COM'. Also, I didn't
see the version of PostgreSQL, but if you're using something recent your
auth method should really be 'gss' instead of 'krb5'.

I don't know much about Kerberos, not I suspect do all that many people
on the list, so I can't be of any more help.

Unfortunately, I don't pay as close attention to the lists as I wish I
could. Kerberos with PG is actually a solution I typically recommend.

Thanks,

Stephen

rahimeh khodadadi

rahimeh.khodadadi@gmail.com

about 16 years ago

In reply to: Stephen Frost (#6)

Re: Fwd: psql+krb5

I thanks from Stephen and Craig for their replying.
I am sorry for doing cross posting, But I did not know about it before. I
had to do for solving the problem, because no one did me answer .

On Wed, Dec 2, 2009 at 5:15 AM, Stephen Frost <sfrost@snowman.net> wrote:

* Craig Ringer (craig@postnewspapers.com.au) wrote:

I've dropped all your cross-posts; this is just going to PgSQL-general.

Thanks for that.

On 30/11/2009 3:29 PM, rahimeh khodadadi wrote:

psql: *krb5_sendauth: Bad application version was sent (via sendauth)*

Also: a search for your error message finds this post, which, while
related to a Windows kerberos server, seems to apply:

It's the same kind of issue (wrong service name), but I think the real
problem is this:

krb_srvname = 'postgres/star@EXAMPLE.COM'

The documentation, I think, is pretty clear:

http://www.postgresql.org/docs/8.4/interactive/auth-methods.html#KERBEROS-AUTH

PostgreSQL operates like a normal Kerberos service. The name of the
service principal is servicename/hostname@realm.

servicename can be set on the server side using the krb_srvname
configuration parameter

The above should just be:

krb_srvname = 'postgres'

Or, better, just removed. Unless you're running under a Microsoft
Active Directory Kerberos environment, the default should 'just work'.

Additionally, this is also almost certainly wrong:

krb_server_hostname = 'star'

Again, referring to the same documentation:

hostname is the fully qualified host name of the server machine.

You really should have a proper FQDN set for this system. I would also
recommend using a real domain rather than 'EXAMPLE.COM'. Also, I didn't
see the version of PostgreSQL, but if you're using something recent your
auth method should really be 'gss' instead of 'krb5'.

I don't know much about Kerberos, not I suspect do all that many people
on the list, so I can't be of any more help.

Unfortunately, I don't pay as close attention to the lists as I wish I
could. Kerberos with PG is actually a solution I typically recommend.

Thanks,

Stephen

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--
With Best Regards
Miss.KHodadadi