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Opalis Integration Pack for UNIX > Connecting to a UNIX Server

Connecting to a UNIX Server
To connect to a UNIX server, you configure connections to UNIX servers, and then refer to the connection from the objects in this Integration Pack. It is highly recommended to connect to the Opalis Unix Agent through an SSH tunnel.
To connect to a UNIX server:
1.
In the Client, click the Options menu and select UNIX. The Connection Settings dialog appears.
2.
Click Add. The UNIX Server Connection Settings dialog appears.
3.
In the Connection name field, type a name for the connection you are creating.
4.
From the Platform drop-down list, select the UNIX platform that is running on the server that you want to connect to.
5.
In the Computer (IP) field, type the name of the UNIX computer that you want to connect to.
6.
Type the SSH port number that these objects will use in the SSH port field.
7.
You can supply the UNIX credentials using one of the following authentication methods:
User name and password – Type the user name that the objects and tunnel will use to connect to the UNIX computer in the User name field. Then, select the Password option and type the password in the Password field.
Key file and passphrase – Select the Key file option and type the path and name of the OpenSSH SSH-2 private key, or click the ellipsis button (...) and browse for it. Type the path and name of the PuTTY key file, or click the ellipsis button (...) and browse for it. Then, type the passphrase in the Passphrase field. For instructions on creating and using keys and passphrases, see the Creating and Using Key Files and Passphrases section below. The OpenSSH key file will be used by the SSH objects and the PuTTy key file will be used by the SSH tunnel
To enable double authentication, select one of the following options in the Double Authentication section of the dialog:
None – do not apply double authentication.
Sudo – apply the Sudo method of double authentication. To use this method, you must install and configure Sudo before you create a connection that uses it. Use this option to launch a single command as a super-user.
Su – apply the Su method of double authentication. To use this method, you must install and configure the Expect tool. Use this option to launch all commands as a super-user.
8.
If you are using objects that connect to the UNIX computer using the Opalis UNIX Agent, type the port number that the the objects will use to communicate with the Opalis UNIX Agent in the Agent port field. For a list of objects that use the Opalis UNIX Agent to connect to the UNIX computer, see Interacting with UNIX computers.
9.
Select Use SSH Tunneling and type the Min and Max of the Local Port Range that will be used to connect to the tunnel. This will determine the local outbound port range that the SSH tunnel will use to connect to the Unix computer.
10.
Click OK. The Connection Settings dialog appears.
11.
To test the connection, select the connection in the list and click Test connection.
Creating and Using Key Files and Passphrases
Follow the instructions below to create a key file and passphrase for logging into UNIX computers.
To create a key file and passphrase:
1.
Generate a key pair by typing ssh-keygen f resulting_keyfile t rsa. If you need to specify a passphrase, provide it when prompted. This generates two items:
resulting_keyfile – the private key
resulting_keyfile.pub – the public key
2.
Run the following command:

cat resulting_keyfile.pub >> ~/.ssh/authorized_keys

Where the home directory (~) is the home directory of the user that was specified on the Connection Settings dialog of the object.
3.
On the UNIX Server Connection Settings dialog for the connection that you create, specify the path to the generated key file, and provide the passphrase, if you created one.

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