Обсуждение: Accessing dblink without using username and Password
Hello Team,
[postgres@ip-172-31-32-99 bin]$ ./psql -d Performance_DB_104_28MAR21 -U trumos
I need to know how we can access table data from a locally or remote database using dblink and without giving username and password.
In the hba.conf file, md5 is allowed for all connections.
It looks like we can do this approach using superuser but not from the normal users.
Here, I have tried to access the data of one table from a database created locally.
psql (10.2)
Type "help" for help.
Performance_DB_104_28MAR21=> show search_path;
search_path
-----------------
"$user", public
(1 row)
Type "help" for help.
Performance_DB_104_28MAR21=> show search_path;
search_path
-----------------
"$user", public
(1 row)
Performance_DB_104_28MAR21=> SELECT * FROM ucf.dblink('dbname=DemoDB','SELECT processstatusid,createdby FROM ucf.ucf_processstatus') AS t1 (processstatusid integer, createdby integer);
ERROR: password is required
DETAIL: Non-superusers must provide a password in the connection string.
Performance_DB_104_28MAR21=>
ERROR: password is required
DETAIL: Non-superusers must provide a password in the connection string.
Performance_DB_104_28MAR21=>
Please suggest !
Am 11.01.22 um 08:25 schrieb Daulat:
> Hello Team,
>
> I need to know how we can access table data from a locally or remote
> database using dblink and without giving username and password.
> In the hba.conf file, md5 is allowed for all connections.
>
> It looks like we can do this approach using superuser but not from the
> normal users.
>
> Here, I have tried to access the data of one table from a database
> created locally.
>
> [postgres@ip-172-31-32-99 bin]$ ./psql -d Performance_DB_104_28MAR21
> -U trumos
> psql (10.2)
> Type "help" for help.
>
> Performance_DB_104_28MAR21=> show search_path;
> search_path
> -----------------
> "$user", public
> (1 row)
>
> Performance_DB_104_28MAR21=> SELECT * FROM
> ucf.dblink('dbname=DemoDB','SELECT processstatusid,createdby FROM
> ucf.ucf_processstatus') AS t1 (processstatusid integer, createdby
> integer);
> ERROR: password is required
> DETAIL: Non-superusers must provide a password in the connection string.
> Performance_DB_104_28MAR21=>
>
> Please suggest !
Hallo Daulat,
What about using certificates? If you already have a PKI infrastructure,
you can use these. Otherwise, you can use OpenSSL to create a
certification authority and the key pairs.
Btw, the dblink module has been superceded by foreign data wrappers.
Regards,
Holger
--
Holger Jakobs, Bergisch Gladbach, Tel. +49-178-9759012