I am trying to setup PostgreSQL and allow only certain Windows users to access the data from the database. Setting up Windows Authentication is Quite easy with MS SQL, but I can't figure out how to set it up in PostgreSQL.
I have gone through the documentation at http://www.postgresql.org/docs/current/static/auth-methods.html
and edited the pg_hba file. But after doing so, the PostgreSQL service fails to start.
Is the Postgresql server running on Windows as well as the clients then you might test with this to see if this works:
host all all 0.0.0.0/0 sspi
Magnus Hagander, a Postgresql developer, elaborates on this:
"All users connecting from the local machine, your domain, or a trusted domain will be automatically authenticated using the SSPI configured authentication (you can enable/disable things like NTLMv2 or LM using Group Policy - it's a Windows configuration, not a PostgreSQL one). You still need to create the login role in PostgreSQL, but that's it. Note that the domain is not verified at all, only the username. So the user Administrator in your primary and a trusted domain will be considered the same user if they try to connect to PostgreSQL. Note that this method is not compatible with Unix clients."
If you mix Unix-Windows then you have to resort to kerberos using GSSAPI which means you have to do some configuration. This article on deploying Pg in Windows environments may perhaps lead you in the right path.
If anyone else encouters this like I did so starting from 9.5 you wil need to add an optional parameter both to the ipv4 and ipv6 in order for this to work
include_realm=0
so the whole thing will look like
host all your_username 127.0.0.1/32 sspi include_realm=0
Related
I'm working on many projects simultaneously, and some have some passwords defined as default, which can vary along projects. I've got postgresql installed on my (Ubuntu) laptop and of course I'm only using it locally for devving.
I know it's horribly insecure, but I don't expose postgres remotely. So to make things easier I would like the postgresql server to accept ANY password it is given for the postgres user. Is there any way that I could do this?
Set trust for all you local connections in pg_hba.conf like e.g
local all all trust
After editing, restart the postgresql service.
I have two databases set up as part of the same Postgresql 9.4 database cluster, and I'm trying to access a table in one of them from the other using a postgres_fdw. I have it all set up and working as a superuser, however when I try to access the foreign table as a normal user, I get the following error:
ERROR: password is required
DETAIL: Non-superuser cannot connect if the server does not request a password.
HINT: Target server's authentication method must be changed.
Now I understand that this is because I have the server set up with trust authentication for certain subnets, including Its own. However, in the 1 USER MAPPING I created, I did specify a password, with the hope that doing so would force it to use password authentication. No such luck apparently.
As such, my question is if there is any way around this somewhat onerous requirement? Is there a way to force this connection, or a specific user, or the like to use password authentication? Or some way to disable the requirement? Or is my only option to change the configuration to require passwords, and deal with whatever that breaks?
As Nick Barnes pointed out in a comment, pg_hba allows different authentication rules for specific users. As such, the solution to this issue was to simply create a user specifically for these FDW connections, and set that user in the pg_hba.conf to require a password. That way my trusted web apps on the trusted network can continue connecting as usual, but the FDW can get the password request it requires.
You can't force FDW to use a password: the server on the other end must request the password. the usual default for local socket connections is no password.
Try connecting via TCP instead of using local sockets: add host=localhost to the connection parameters, that will usually fix it.
Good day,
Currently I use MS Access at home for several Databases (for personal use).
At work, I use PostgreSQL, which is infinity times better. I want to start using postgres for my personally used databases, but I don't know where to start.
I've tried reading the documentation, but still don't know how to start. I don't have a server at home; is it possible I can just make a local database/tablespace? Or would I have to host a virtual server?
Note that I am willing to use other open source databases if there is an easy option out there - MS access is just so... terrible.
Thanks,
So, it seems you have Windows at home. You just need to download full installer for PostgreSQL:
http://www.postgresql.org/download/windows/
After installation it will automatically add starting postgres server as a service on local machine. That means, server will always run in background, but you can disable that later, or just uninstall.
After that, you can use pgAdmin (included in default installation package) or other client tools to access the DB engine.
UPD in pgadmin, create connection with this settings:
'localhost' as hostname;
port - 5432;
user, database - postgres (for testing purpose only - you should create your own user and tables with restricted rights later).
Password for postgres (that is DB admin user) must be entered during installation process.
Server settings are stored somewhere here:
"C:\Program Files\PostgreSQL\9.3\data"
pg_hba.conf - Client Authentication Configuration File
postgresql.conf - Configuration File
I love postgres.app. It makes it really simple to develop against postgres. I'm configuring a vagrant setup so some of my other developer friends can easily use postgres, however I'd like to enable the same behavior of postgres.app, namely I'd like them to be able to connect using localhost and without having to have a username or password specified. I know it's gotta be possible, but I haven't figured out how yet. Any ideas?
Worst case I can create a super user, since I know the username of vagrant boxes, but if you have any ideas, I'd love to hear 'em.
You can automatically install local instance of PostgreSQL server and preconfigure pg_hba.conf file to have trust entries like this:
# Allow any user on the local system to connect to any database
# with any database user name using Unix-domain sockets
# (the default for local connections):
# TYPE DATABASE USER ADDRESS METHOD
local all all trust
# The same using local loopback TCP/IP connections:
host all all 127.0.0.1/32 trust
Please, any help will be appreciated, i have an OpenERP installed with all its components (Postgres, Web server, Server) in a VPS..
And I would like to use this PostgreSQL from my local machine trough pgAdmin3. I am still not able to do so.
I read some answers about this issue, by modifing Configuration Files in Postgresql and some others telling me to use SSH Tunilling trough Putty, but when i go to connect trough PGADMIN3 i can't have a successfuull connection
So , Please if any one could Give me in details What i have to do, to make this happen successfully,
First you need to ask yourself a bunch of questions. The answer to this isn't really that simple which is why it hasn't been answered. These involve risk management questions that happen when you set up your db for access across the internet. You really want to start by reading the administration and authentication sections of the PostgreSQL docs. You may want to do an SSH tunnel or just require SSL.
Personally I would configure PostgreSQL to require SSL if you are going to do that. Set up an entry of type hostssl in the pg_hba.conf for the host that will be connecting to it. Set up firewall rules to allow connections from that host. Ideally set up a client cert but not quite sure how to make OpenERP use that.
Then configure OpenERP. I don't know which version you are running but these docs may get you started.