Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Jasen Betts
On 2009-07-08, Andreas Wenk a.w...@netzmeister-st-pauli.de wrote:
 Serge Fonville schrieb:
 *argh* - more detailed to avoid confusion. The auth method 'password' in
 pg_hba.conf means, that you will be asked for a password for the user you
 try to create a db with. If no user is given (with createdb -U [username]),
 this user is postgres ...
 
 Wasn't it that it uses the currently logged on user is used if no user
 is specified?

 correct - so this will be postgres because other users are not allowed to use 
 these
 programs ...

 /var/lib/postgresql/8.4/bin$ ./createdb test -p 5433
 createdb: could not connect to database postgres: FATAL:  role duke does 
 not exist

 $ sudo su postgres
 postg...@duke-linux:~/8.4/bin$ ./createdb test -p 5433
 postg...@duke-linux:~/8.4/bin$

 auth method in pg_hba.conf is trust in this case.

if it's trust any user can do

~postgres/8.4/bin/createdb -U postgres -p 5433 test




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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Andreas Wenk

Jasen Betts schrieb:

On 2009-07-08, Andreas Wenk a.w...@netzmeister-st-pauli.de wrote:

Serge Fonville schrieb:

*argh* - more detailed to avoid confusion. The auth method 'password' in
pg_hba.conf means, that you will be asked for a password for the user you
try to create a db with. If no user is given (with createdb -U [username]),
this user is postgres ...

Wasn't it that it uses the currently logged on user is used if no user
is specified?

correct - so this will be postgres because other users are not allowed to use 
these
programs ...

/var/lib/postgresql/8.4/bin$ ./createdb test -p 5433
createdb: could not connect to database postgres: FATAL:  role duke does not 
exist

$ sudo su postgres
postg...@duke-linux:~/8.4/bin$ ./createdb test -p 5433
postg...@duke-linux:~/8.4/bin$

auth method in pg_hba.conf is trust in this case.


if it's trust any user can do

~postgres/8.4/bin/createdb -U postgres -p 5433 test


nope! what you did is calling createdb as system user postgres (I believe because of the ~ 
sign at the beginning) *and* giving the option -U postgres. That works for sure and you 
even don't need -U postgres since you are allready postgres. But leave -U postgres away as 
a system user not equal to postgres ... see my example above.


Cheers

Andy

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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Steve Atkins


On Jul 8, 2009, at 6:19 AM, Andreas Wenk wrote:


Jasen Betts schrieb:

On 2009-07-08, Andreas Wenk a.w...@netzmeister-st-pauli.de wrote:

Serge Fonville schrieb:
*argh* - more detailed to avoid confusion. The auth method  
'password' in
pg_hba.conf means, that you will be asked for a password for the  
user you
try to create a db with. If no user is given (with createdb -U  
[username]),

this user is postgres ...
Wasn't it that it uses the currently logged on user is used if no  
user

is specified?
correct - so this will be postgres because other users are not  
allowed to use these

programs ...


That's not true.



/var/lib/postgresql/8.4/bin$ ./createdb test -p 5433
createdb: could not connect to database postgres: FATAL:  role  
duke does not exist


$ sudo su postgres
postg...@duke-linux:~/8.4/bin$ ./createdb test -p 5433
postg...@duke-linux:~/8.4/bin$

auth method in pg_hba.conf is trust in this case.

if it's trust any user can do
~postgres/8.4/bin/createdb -U postgres -p 5433 test


nope! what you did is calling createdb as system user postgres (I  
believe because of the ~ sign at the beginning) *and* giving the  
option -U postgres. That works for sure and you even don't need -U  
postgres since you are allready postgres. But leave -U postgres away  
as a system user not equal to postgres ... see my example above.


Nor is that.

Most of the postgresql client tools, including createdb, can be used  
by any operating system user to connect to the database as any  
database user.


If they are called with -U foo then they will attempt to connect to  
the database as database user foo.


If they are not called with -U then they will usually attempt to  
connect to the database as the current operating system user (though  
that can be overridden with the PGUSER or PGSERVICE environment  
variables).


So if I'm logged in as steve and I do createdb test then I will try  
and connect to the database as database user steve and create the test  
database. If I do createdb -U postgres test I will try to connect to  
the database as database user postgres and create the test database.


Whether I'm prompted for a password or not depends on the settings in  
pg_hba.conf. Typically the postgres operating system user is allowed  
to connect to the database as the postgres database user without a  
password. Other OS user / database user combinations may or may not  
need a password depending on whether pg_hba.conf is set up to ask for  
one or not - how that is set up as default varies, but it's fairly  
common to require a password.


Cheers,
  Steve


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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Raymond O'Donnell
On 08/07/2009 18:14, Steve Atkins wrote:
 Typically the postgres operating system user is allowed to
 connect to the database as the postgres database user without a
 password.

Is this really so? I don't think so - I think it depends on pg_hba.conf
settings, just like any other user.

Ray.

--
Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
r...@iol.ie
Galway Cathedral Recitals: http://www.galwaycathedral.org/recitals
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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Steve Atkins


On Jul 8, 2009, at 10:25 AM, Raymond O'Donnell wrote:


On 08/07/2009 18:14, Steve Atkins wrote:

Typically the postgres operating system user is allowed to
connect to the database as the postgres database user without a
password.


Is this really so? I don't think so - I think it depends on  
pg_hba.conf

settings, just like any other user.


It does, yes. But most of the distributions I've seen tend to set it
up that way (as otherwise there's not really a good way to do
automated maintenance and backups, nor any easy way to
bootstrap the database).

So it's not hardwired that way, just typically set up that way (on
non-Windows OSes anyway - Windows has issues that likely
mean it's setup differently there).

Cheers,
  Steve


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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Raymond O'Donnell
On 08/07/2009 18:30, Steve Atkins wrote:
 On Jul 8, 2009, at 10:25 AM, Raymond O'Donnell wrote:
 Is this really so? I don't think so - I think it depends on pg_hba.conf
 settings, just like any other user.
 
 It does, yes. But most of the distributions I've seen tend to set it
 up that way (as otherwise there's not really a good way to do
 automated maintenance and backups, nor any easy way to
 bootstrap the database).
 
 So it's not hardwired that way, just typically set up that way (on
 non-Windows OSes anyway - Windows has issues that likely
 mean it's setup differently there).

Ah, OK - I see what you mean.

Ray.

--
Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
r...@iol.ie
Galway Cathedral Recitals: http://www.galwaycathedral.org/recitals
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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Andreas Wenk

Steve Atkins schrieb:


On Jul 8, 2009, at 6:19 AM, Andreas Wenk wrote:


Jasen Betts schrieb:

On 2009-07-08, Andreas Wenk a.w...@netzmeister-st-pauli.de wrote:

Serge Fonville schrieb:
*argh* - more detailed to avoid confusion. The auth method 
'password' in
pg_hba.conf means, that you will be asked for a password for the 
user you
try to create a db with. If no user is given (with createdb -U 
[username]),

this user is postgres ...

Wasn't it that it uses the currently logged on user is used if no user
is specified?
correct - so this will be postgres because other users are not 
allowed to use these

programs ...


That's not true.


you are right!Sorry for that mistake.





/var/lib/postgresql/8.4/bin$ ./createdb test -p 5433
createdb: could not connect to database postgres: FATAL:  role 
duke does not exist


$ sudo su postgres
postg...@duke-linux:~/8.4/bin$ ./createdb test -p 5433
postg...@duke-linux:~/8.4/bin$

auth method in pg_hba.conf is trust in this case.

if it's trust any user can do
~postgres/8.4/bin/createdb -U postgres -p 5433 test


nope! what you did is calling createdb as system user postgres (I 
believe because of the ~ sign at the beginning) *and* giving the 
option -U postgres. That works for sure and you even don't need -U 
postgres since you are allready postgres. But leave -U postgres away 
as a system user not equal to postgres ... see my example above.


Nor is that.


Why not? I think it is but maybe I did not write it understandable 
enough. See my example.




Most of the postgresql client tools, including createdb, can be used by 
any operating system user to connect to the database as any database user.


If they are called with -U foo then they will attempt to connect to 
the database as database user foo.


If they are not called with -U then they will usually attempt to connect 
to the database as the current operating system user (though that can be 
overridden with the PGUSER or PGSERVICE environment variables).


So if I'm logged in as steve and I do createdb test then I will try 
and connect to the database as database user steve and create the test 
database. If I do createdb -U postgres test I will try to connect to 
the database as database user postgres and create the test database.


this is exactly my example. I am the system user duke but there is no 
role duke in the db. The result is the error message. Using -U postgres 
is successful.


But in the case shown by Swati she is allready the system user postgres. 
So there's no need to put the option -U postgres. Correct? See my example.




Whether I'm prompted for a password or not depends on the settings in 
pg_hba.conf. Typically the postgres operating system user is allowed to 
connect to the database as the postgres database user without a 
password. Other OS user / database user combinations may or may not need 
a password depending on whether pg_hba.conf is set up to ask for one or 
not - how that is set up as default varies, but it's fairly common to 
require a password.


exactly. Thanks a lot for explaining that way better.



Cheers,
  Steve




Actually I think we both know how it works ;-)

Cheers

Andy


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Re: [GENERAL] [Re: Password?]

2009-07-08 Thread Ms swati chande
I think I can understand what you both have discussed.
But I am unable to unearth my mistake.
 
Regards
Swati

--- On Wed, 7/8/09, Andreas Wenk a.w...@netzmeister-st-pauli.de wrote:


From: Andreas Wenk a.w...@netzmeister-st-pauli.de
Subject: Re: [GENERAL] [Re: Password?]
To: Steve Atkins st...@blighty.com
Cc: pgsql-general List pgsql-general@postgresql.org
Date: Wednesday, July 8, 2009, 11:20 PM


Steve Atkins schrieb:
 
 On Jul 8, 2009, at 6:19 AM, Andreas Wenk wrote:
 
 Jasen Betts schrieb:
 On 2009-07-08, Andreas Wenk a.w...@netzmeister-st-pauli.de wrote:
 Serge Fonville schrieb:
 *argh* - more detailed to avoid confusion. The auth method 'password' in
 pg_hba.conf means, that you will be asked for a password for the user you
 try to create a db with. If no user is given (with createdb -U 
 [username]),
 this user is postgres ...
 Wasn't it that it uses the currently logged on user is used if no user
 is specified?
 correct - so this will be postgres because other users are not allowed to 
 use these
 programs ...
 
 That's not true.

you are right!Sorry for that mistake.

 
 
 /var/lib/postgresql/8.4/bin$ ./createdb test -p 5433
 createdb: could not connect to database postgres: FATAL:  role duke does 
 not exist
 
 $ sudo su postgres
 postg...@duke-linux:~/8.4/bin$ ./createdb test -p 5433
 postg...@duke-linux:~/8.4/bin$
 
 auth method in pg_hba.conf is trust in this case.
 if it's trust any user can do
 ~postgres/8.4/bin/createdb -U postgres -p 5433 test
 
 nope! what you did is calling createdb as system user postgres (I believe 
 because of the ~ sign at the beginning) *and* giving the option -U postgres. 
 That works for sure and you even don't need -U postgres since you are 
 allready postgres. But leave -U postgres away as a system user not equal to 
 postgres ... see my example above.
 
 Nor is that.

Why not? I think it is but maybe I did not write it understandable enough. See 
my example.

 
 Most of the postgresql client tools, including createdb, can be used by any 
 operating system user to connect to the database as any database user.
 
 If they are called with -U foo then they will attempt to connect to the 
 database as database user foo.
 
 If they are not called with -U then they will usually attempt to connect to 
 the database as the current operating system user (though that can be 
 overridden with the PGUSER or PGSERVICE environment variables).
 
 So if I'm logged in as steve and I do createdb test then I will try and 
 connect to the database as database user steve and create the test database. 
 If I do createdb -U postgres test I will try to connect to the database as 
 database user postgres and create the test database.

this is exactly my example. I am the system user duke but there is no role duke 
in the db. The result is the error message. Using -U postgres is successful.

But in the case shown by Swati she is allready the system user postgres. So 
there's no need to put the option -U postgres. Correct? See my example.

 
 Whether I'm prompted for a password or not depends on the settings in 
 pg_hba.conf. Typically the postgres operating system user is allowed to 
 connect to the database as the postgres database user without a password. 
 Other OS user / database user combinations may or may not need a password 
 depending on whether pg_hba.conf is set up to ask for one or not - how that 
 is set up as default varies, but it's fairly common to require a password.

exactly. Thanks a lot for explaining that way better.

 
 Cheers,
   Steve
 
 

Actually I think we both know how it works ;-)

Cheers

Andy


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[GENERAL] Re: PASSWORD() function for postgresql?

2001-07-23 Thread Philip Hallstrom

You could take the password hashing routine out of client/password.c (in
the mysql source) and write your own C function...  I know just enough C
to think that it shouldn't be that hard, but not enough to do it :)

-philip

On Sun, 15 Jul 2001, Jason DiCioccio wrote:

 I am looking for a postgresql PASSWORD() function that
 produces hashes compatible with MySQL's implementation.

 I am converting from MySQL and I know of no other way to
 use the passwords I have in the old database other than
 having a compatible PASSWORD() function.

 I have searched around for one quite a bit but could not find
 one.  Does anyone know if someone has written something
 to do this already?  If so, where I can get it from?

 I am off the list so please include me in CC, etc.

 Thanks in advance,
 Jason DiCioccio




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Re: [GENERAL] Re: PASSWORD() function for postgresql?

2001-07-23 Thread wsheldah



For that matter, you could write a perl function using perl's built-in crypt()
function.  I'm not sure if it's exactly identical to what mysql does, though I
strongly suspect that it is.




Philip Hallstrom [EMAIL PROTECTED] on 07/23/2001
02:13:27 PM

To:   Jason DiCioccio [EMAIL PROTECTED]
cc:   [EMAIL PROTECTED] (bcc: Wesley
  Sheldahl/Lex/Lexmark)
Subject:  [GENERAL] Re: PASSWORD() function for postgresql?


You could take the password hashing routine out of client/password.c (in
the mysql source) and write your own C function...  I know just enough C
to think that it shouldn't be that hard, but not enough to do it :)

-philip

On Sun, 15 Jul 2001, Jason DiCioccio wrote:

 I am looking for a postgresql PASSWORD() function that
 produces hashes compatible with MySQL's implementation.

 I am converting from MySQL and I know of no other way to
 use the passwords I have in the old database other than
 having a compatible PASSWORD() function.

 I have searched around for one quite a bit but could not find
 one.  Does anyone know if someone has written something
 to do this already?  If so, where I can get it from?

 I am off the list so please include me in CC, etc.

 Thanks in advance,
 Jason DiCioccio




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