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208 lines
9.5 KiB
ReStructuredText
208 lines
9.5 KiB
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.. _server_dialog:
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**********************
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`Server Dialog`:index:
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**********************
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Use the *Server* dialog to describe a connection to a server. Note: you must
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ensure that the pg_hba.conf file of the server from which you are connecting
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allows connections from the host of the client.
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.. image:: images/server_general.png
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:alt: Server dialog general tab
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:align: center
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Use the fields in the *General* tab to identify the server:
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* Use the *Name* field to add a descriptive name for the server; the name
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specified will be displayed in the *Browser* tree control.
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* Use the drop-down list box in the *Server group* field to select the parent
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node for the server; the server will be displayed in the *Browser* tree
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control within the specified group.
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* Use the color-picker in the *Background* field to specify the background
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color for the server.
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* Use the color-picker in the *Foreground* field to specify the foreground
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color for the server.
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* If the *Connect now?* checkbox is checked, the client will attempt a
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connection to the server upon completion of the dialog; this is the default
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* If the *Shared?* switch is moved to *Yes* then that server can be
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shared with all the other users. This option is available only to admin users.
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For more information on users see :ref:`User Management Dialog <user_management>`.
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Users can access the shared servers with some restrictions - the following
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operations on shared servers are not permitted:
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* Delete the server
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* Rename the server
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* Rename the group server
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* Change of host, port, and maintenance database
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Please note that once the server is shared, it's icon is changed in the
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browser tree.
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* Provide a comment about the server in the *Comments* field.
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Click the *Connection* tab to continue.
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.. image:: images/server_connection.png
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:alt: Server dialog connection tab
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:align: center
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Use the fields in the *Connection* tab to configure a connection:
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* Specify the IP address of the server host, or the fully qualified domain
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name in the *Host name/address* field. If you provide a unix domain socket,
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the directory name must begin with a "/".
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* Enter the listener port number of the server host in the *Port* field. The
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default is *5432*.
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* Use the *Maintenance database* field to specify the name of the initial
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database to which the client will connect. If you will be using pgAgent or
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adminpack objects, the pgAgent schema and adminpack objects should be
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installed on that database.
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* Use the *Username* field to specify the name of a role that will be used when
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authenticating with the server.
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* When *Kerberos authentication?* is set to *True*, pgAdmin will try to connect
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the PostgreSQL server using Kerberos authentication.
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* Use the *Password* field to provide a password that will be supplied when
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authenticating with the server.
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* Check the box next to *Save password?* to instruct pgAdmin to save the
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password for future use. Use
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:ref:`Clear Saved Password <clear_saved_passwords>` to remove the saved
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password.
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* Use the *Role* field to specify the name of a role that has privileges that
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will be conveyed to the client after authentication with the server. This
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selection allows you to connect as one role, and then assume the permissions
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of this specified role after the connection is established. Note that the
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connecting role must be a member of the role specified.
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* Use the *Service* field to specify the service name. For more information,
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see
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`Section 33.16 of the Postgres documentation <https://www.postgresql.org/docs/current/libpq-pgservice.html>`_.
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Click the *SSL* tab to continue.
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.. image:: images/server_ssl.png
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:alt: Server dialog ssl tab
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:align: center
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Use the fields in the *SSL* tab to configure SSL:
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* Use the drop-down list box in the *SSL* field to select the type of SSL
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connection the server should use. For more information about using SSL
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encryption, see
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`Section 33.18 of the Postgres documentation <https://www.postgresql.org/docs/current/libpq-ssl.html>`_.
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If pgAdmin is installed in Server mode (the default mode), you can use the
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platform-specific File manager dialog to upload files that support SSL
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encryption to the server. To access the File manager dialog, click the
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icon that is located to the right of each of the following fields.
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* Use the *Client certificate* field to specify the file containing the client
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SSL certificate. This file will replace the default
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*~/.postgresql/postgresql.crt* if pgAdmin is installed in Desktop mode, and
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*<STORAGE_DIR>/<USERNAME>/.postgresql/postgresql.crt* if pgAdmin is installed
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in Web mode. This parameter is ignored if an SSL connection is not made.
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* Use the *Client certificate key* field to specify the file containing the
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secret key used for the client certificate. This file will replace the
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default *~/.postgresql/postgresql.key* if pgAdmin is installed in Desktop
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mode, and *<STORAGE_DIR>/<USERNAME>/.postgresql/postgresql.key* if pgAdmin
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is installed in Web mode. This parameter is ignored if an SSL connection is
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not made.
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* Use the *Root certificate* field to specify the file containing the SSL
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certificate authority. This file will replace the default
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*~/.postgresql/root.crt*. This parameter is ignored if an SSL connection is
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not made.
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* Use the *Certificate revocation list* field to specify the file containing
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the SSL certificate revocation list. This list will replace the default list,
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found in *~/.postgresql/root.crl*. This parameter is ignored if an SSL
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connection is not made.
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* When *SSL compression?* is set to *True*, data sent over SSL connections will
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be compressed. The default value is *False* (compression is disabled). This
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parameter is ignored if an SSL connection is not made.
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.. warning:: In Server mode, certificates, private keys, and the revocation list
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are stored in the per-user file storage area on the server, which is owned
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by the user account under which the pgAdmin server process is run. This
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means that administrators of the server may be able to access those files;
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appropriate caution should be taken before choosing to use this feature.
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Click the *SSH Tunnel* tab to continue.
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.. image:: images/server_ssh_tunnel.png
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:alt: Server dialog ssh tunnel tab
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:align: center
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Use the fields in the *SSH Tunnel* tab to configure SSH Tunneling:
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You can use the "SSH Tunnel" tab to connect pgAdmin (through an intermediary
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proxy host) to a server that resides on a network to which the client may
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not be able to connect directly.
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* Set "Use SSH tunneling" to *Yes* to specify that pgAdmin should use an SSH
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tunnel when connecting to the specified server.
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* Specify the name or IP address of the SSH host (through which client
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connections will be forwarded) in the *Tunnel host* field.
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* Specify the port of the SSH host (through which client connections will be
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forwarded) in the *Tunnel port* field.
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* Specify the name of a user with login privileges for the SSH host in the
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*Username* field.
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* Specify the type of authentication that will be used when connecting to the
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SSH host in the *Authentication* field:
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* Select the *Password* option to specify that pgAdmin will use a password
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for authentication to the SSH host. This is the default.
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* Select the *Identity file* to specify that pgAdmin will use a private key
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file when connecting.
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* If the SSH host is expecting a private key file for authentication, use the
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*Identity file* field to specify the location of the key file.
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* If the SSH host is expecting a password of the user name or an identity file
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if being used, use the *Password* field to specify the password.
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* Check the box next to *Save password?* to instruct pgAdmin to save the
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password for future use. Use
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:ref:`Clear SSH Tunnel Password <clear_saved_passwords>` to remove the saved
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password.
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Click the *Advanced* tab to continue.
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.. image:: images/server_advanced.png
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:alt: Server dialog advanced tab
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:align: center
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Use the fields in the *Advanced* tab to configure a connection:
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* Specify the IP address of the server host in the *Host address* field. Using
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this field to specify the host IP address may save time by avoiding a DNS
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lookup on connection, but it may be useful to specify both a host name and
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address when using Kerberos, GSSAPI, or SSPI authentication methods, as well
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as for verify-full SSL certificate verification.
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* Use the *DB restriction* field to provide a SQL restriction that will be used
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against the pg_database table to limit the databases that you see. For
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example, you might enter: *live_db test_db* so that only live_db and test_db
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are shown in the pgAdmin browser. Separate entries with a comma or tab as you
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type.
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* Use the *Password File* field to specify the location of a password file
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(.pgpass). A .pgpass file allows a user to login without providing a password
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when they connect. For more information, see
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`Section 33.15 of the Postgres documentation <https://www.postgresql.org/docs/current/libpq-pgpass.html>`_.
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* Use the *Connection timeout* field to specify the maximum wait for connection,
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in seconds. Zero or not specified means wait indefinitely. It is not
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recommended to use a timeout of less than 2 seconds. By default it is set to
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10 seconds.
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.. note:: The password file option is only supported when pgAdmin is using libpq
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v10.0 or later to connect to the server.
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* Click the *Save* button to save your work.
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* Click the *Close* button to exit without saving your work.
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* Click the *Reset* button to return the values specified on the Server dialog
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to their original condition.
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.. toctree::
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clear_saved_passwords
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